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2015-04-02 Kurt Quantance 10:34 a.m. Email Forwarding Info to Mike Isenee
II Julie Hultman From: Kurt Quaintance <kquaintance @jrhinc.com> Sent: Thursday,April 02, 2015 10:34 AM To: 'Mike Isensee' Cc: Eric Johnson;Julie Hultman; cristina.mlejnek @stantec.com; 'Shawn L. Dahl' Subject: Oak Ridge Place - Memory Care Addition Attachments: 20150331081419856.pdf; 20150331080332536.pdf; 7a2_Oak Ridge Memory Care_Project_Review_req_not_met.pdf;TIC EXISTING 2-05-15.pdf;TIC PROPOSED 2-05-15.pdf; OAK RIDGE PLACE.pdf Follow Up Flag: Follow up Flag Status: Flagged Mike, Attached are the revised (MNDOT approved)construction plan set, approved MNDOT permits, proposed and existing HydroCAD, and MSCWMO review letter dated November 14, 2014 for your reference and approval. We have addressed your review comments (11-14-2014)within the attached plan set with the exception of three items-soil borings, compensatory storage, and an inspection and maintenance agreement. The soil borings are currently scheduled and we will pass on the results once they have been drilled and analyzed. It is my understanding based on a City staff meeting (December 8, 2014), that if MNDOT approved our drainage plan, the City of Oak Park Heights would be ok with vacating the existing drainage easement and therefore the compensatory storage requested by the MSCWMO would not be needed or required. We request that the MSCWMO and/or the City of Oak Park Heights provide a generic or previous project's inspection and maintenance agreement to review and use for the basis of our agreement. Please let me know what your timing is for the review of the attached information as well as the date of the next applicable board meeting. Please give me a call with any questions. Thanks. Kurt Kurt D.Quaintance,PE Vice President James R. 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TRUNK HIGHWAY RIGHT OF WAY , R.P. (HIS SECTION FOR MnDOT OFFICE USE ONLY.) ATTACHA SKETCH OFTIIE PROPOSED WORK AREA AND RELATION TO TRUNK HIGHWAY. SUBMIT TO DISTRICT PERMIT OFFICE OF MINNESOTA DEPARTMENT OF TRANSPORTATION. APPLICANT TELEPHONE ADDRESS(Street,City,State,TAp) ,7,_r "';‘.1,445-1),...e.",-(75, 1.14 95Z-867-6t o1 ZCb 7 lade Ie Sae,�dy 'ro�Ali") PARTY PERFORMING WORK TELEPHONE ADDRESS(Street,City,State,Zip) 7-75 b LOCATION OF PROPOSED WORK carrrnwnship) (Comity) (Distance) (Pow) SPECIFIC ROAD INTERSECTION OR LANDMARK Highway 34 in elOth Pay74 744. s., t'ft.A ..,..8e01:46 PE ,, // ' iu( )4L LA ly Ili k WILL THIS FACILITY BE WITHIN TRIBAL LANDS? ❑Yes J No IF YES,WHICH ONE? NATO ORK 6r /Z"o I P rc14-7SewlI o col 6"0 le 'Ta pavu Fi e6 suPpeassiotJ rb2 sac sn At..4 PoPCtsseb $U tLtlts3 CshS ■ SURFACE TO BE DISTURBED (Check Appropriate Boxes) ❑Roadway ❑Shoulder ❑Concrete ❑Bituminous ❑(ravel *Turf Only h ❑Other(explain) _ DEPTH OF EXCAVATION BELOW NUMBER SIZE OF EXCAVATIONS METHOD OF INSTALLATION ONSTRUCTION SURFACE 7.5 hkig(10 Pr x 30 Crr" OP "-J 4 WORK TO START ON OR AFTER WORK TO BE MPLETED BY IS TRAFFIC DETOUR NECESSARY? ❑Yes . No .3 IS t7..-/ ‘3 __Is (IF YES,TRAFFIC CONTROL PLAN IS REQUIRED.) / APPLICANTS ACCEPTANCE,WAIVER AND INDEMNIFICATION The undersigned applicant hereby agrees to comply with applicable statutes,rules,and the standard conditions and special provisions of this permit.The applicant understands and agrees that no work in connection with this application will be started until the appliadan has been approved and the permit issued. The applicant is aware of circumstances or hazards that may arise while performing the work associated with this application that could result in injury,loss,damage or death,and the applicant assumes the risk of such circumstances,dangers and hazards,whether reasonably foreseeable or not N The applicant also understands that this permit may also be subject to the approval of local road authorities having joint supervision over said street or highway,and may be subject to applicant's compliance with the rules and regulations of the Minnesota Environmental Quality Board and/or any other affected governmental agencies. The undersigned applicant expressly agrees that except for negligent acts of the State,its agents and employees,the applicant or his/her agents or contractor shall assume all liability for,and save the State,its agents and employees,harmless front any and all claims for damages,actions or causes of action arising out of the work 0 to bt done in connection with this application and permit. ■ NAME AND TITLE EMAIL ADDRESS r sAtItAA.n IN (~ D ta.hrNer-' .511t�LAX%. sl I . aL re‘es t.0. CO Ale DATE 2/117/15 SIGNATURE o` //J DO NOT WRITE BELOW THIS E PERMIT NOT VALID UNLESS BEARING AUTHORIZED MnD' s 'LAND PERMIT NUMBER AUTHORIZATION OF PERMIT It is expressly understood that this permit is conditioned upon restoration of the trunk highway right-of-way to its original condition or to a satisfactory condition. In consideration of the applicant's agreement to comply in all respects with the applicable laws and the conditions of the Commissioner of Transportation pertaining to this permit,permission is hereby granted for the work to be performed as described in the above application,said work to be performed in accordance with the following standard conditions and special provisions: SEE ATTACHED STANDARD CONDITIONS AND SPECIAL PROVISIONS 1Z/3Vic- ,/ -- Date A Work To Be Completed_By T Signature Date of Authorized Signature t DISTRIBUTION DEPOSIT MENTS DEPOSIT TYPE Original to Area Maintenance Engineer ❑ No Deposit Required Cashier's Check S Applicant ❑ Deposit Required in the Amount of S Certified Check S Subarea Supervisor Date Deposit Received Money Order ti Roadway Regulations Supervisor Deposit robe returned upon sedUjeerory completion of ell work Bond S DATE WORK COMPLETED (The date when the work is completed mast be reported to the MnDOT District Permits Office) Page I of 2 STANDARD CONDITIONS OF MISCELLANEOUS WORK PERMIT 1. The permit holder must comply with all applicable laws and regulations,including Worker's Compensation laws. 2. If work to be done lies within a city or platted town,permission must also be obtained from such city or town. 3. Where work on or near the traveled roadway is necessary,proper traffic signs,channelizing devices,warning lights, and barricades shall be erected to protect traffic,employees,and pedestrians. All traffic control devices and methods shall conform to the Minnesota Field Manual on Temporary Traffic Control Zone Layouts,Minnesota Manual on Uniform Traffic Control Devices(MMUTCD),Minnesota Standard Sign Manual,and the appropriate provisions of Standard Specification 1710. 4. Unless adequately protected by a traffic barrier,there shall be no work within the clear zone,nor shall pipe materials,equipment or other objects be stored within the clear zone as determined by the MnDOT and as defined by the latest edition of AASHTO's"Guide for Selecting Locations,and Designing Traffic Barriers". 5. Excavations must be cribbed when necessary,depending upon type of soil,in order to prevent cave-ins. All excavations,trenching and/or jacking and boring pits shall be shored or sloped in accordance with OSHA requirements. 6. No guys,stays,or any structures are to be attached to trees on trunk highway right of way. 7. No poles,anchors,anchor braces,or other construction shall be placed on the roadway shoulder or within the prescribed clear zone. 8. Installation of pipe under concrete or bituminous pavements shall be done by jacking or boring or other approved methods. 9. When open trenching or excavating in existing roadways,all subgrade,base,and surfacing materials shall be replaced with the same type,depth,and density of materials which were removed,unless approved by the Area Maintenance Engineer. 10. All work that involves trenching,backfill,or compaction must be done to MnDOT's Standard Specifications for Construction.Depending on the construction work to be performed,use of one or more of the following specifications may be needed:Excavation and Embankment 2105,Aggregate Base 2211,Aggregate Shouldering 2221,or Structural Excavation and Backfllis 2451,Subgrade Preparation 2112. Compaction methods must be approved in advance by the District Permit Office 11. If pavement or roadway is damaged,same shall be restored to a condition as good as or better than the original condition. 12. All pavements shall be replaced in accordance with State specifications. 13. If settlement occurs or excavation caves In so that replaced materials settle(bituminous mat or concrete base), same shall be restored to a condition as good as or better than the original condition, 14. No lugs shall be used on equipment traversing the road which will damage the road surface. 15. No driving onto highway from ditch or driving on shoulders will be permitted where damage will occur. 16. No foreign material such as dirt,gravel,or bituminous material shall be deposited or left on the road during any construction activities. 17. Roadside shall be cleaned to original status upon completion of work. 18. Underground construction must be so constructed as not to harm or unnecessarily destroy the root growth of specimen trees. 19. Cutting and trimming of trees within the right of way and removal of resulting stumps require prior approval of the Area Maintenance Engineer or his authorized representative. 20. If MnDOT shall make any improvements or changes upon,over,under,or along the trunk highway,then and in every case the applicant herein named shall after notice from MnDOT proceed to alter,change,vacate,or remove from trunk highway right of way said works necessary to conform with said changes without cost whatsoever to the State of Minnesota. 21. After work on a project is completed,the permit holder must notify the Area Maintenance Engineer or his authorized representative that such work has been completed and is ready for final inspection and acceptance by MnDOT. MnDOT Form 1723 Standard Conditions of Miscellaneous Work Permit(7-15-2013) Page 2 of 2 M-US-15-65666 C.S. 8214 T.H. 36 TIC Investments THIS PERMIT IS SUBJECT TO THE FOLLOWING CONDITIONS: The installation authorized in this permit will be inspected by Rod Clark, MN/DOT Roadway Regulation Inspector 651-234-7915. The applicant or its contractor will notify Mn/DOT's inspector at least two days prior to starting the installation. Any questions the applicant may have pertaining to Mn/DOT's storm water facilities shall be presented at this time. Mn/DOT's inspector will approve all highway materials prior to placement, and the total installation must meet with his/her satisfaction. Attached is a drainage map that satisfies the requirements for Mn/DOT storm water utility locates per Minnesota Statutes 216D and Minnesota Rules 7560.0250. By acceptance of a permit from Mn/DOT, the applicant agrees that it, and all of its agents or contractors, shall use Mn/DOT's drainage map to identify the location of Mn/DOT drainage facilities as satisfaction of the requirements of Minnesota Statutes Ch. 216D and Minnesota Rules 7650.0250 with respect to Mn/DOT's storm water drainage facilities. This permit authorizes the applicant to tap into an existing water main in TH 36 right of way, 80' west of Oxboro, in the city of Oak Park Heights as shown on applicant's plan sheet(s). Any lane closures shall be approved by this office at 651-234-7915, 24 hours prior to the lane closure. The hours of the lane closure shall be determined by this office. The applicant shall provide in-house inspection at all times while working on trunk highway right of way. The applicant shall furnish, install and maintain all required traffic control devices according to the Minnesota Field Manual on Temporary Traffic Control Zone Layouts (see web page @ www.dot.state.mn.us/trafficeng/),while performing the construction authorized by this permit. Due to the Twin City rush hour restrictions, no work involving interference with or causing a distraction to traffic will be allowed from 6:00 AM to 9:00 AM. or from 3:00 PM to 6:00 PM. unless authorized by the MN/DOT Permit Office at 651-234-7915. If the temporary traffic control zone is to remain in one place for more than 3 days or involves a detour, road closure or a situation where the typical layouts do not apply, the applicant shall prepare a specific Traffic Control Plan for approval by Mn/DOT prior to start of any construction. Temporary lane restrictions will be permitted as detailed at the following link: http://www.dot.state.mn.us/metro/trafficena/laneclosure/index.html All persons while performing authorized work on Mn/DOT Right of Way shall be required to wear a Mn/DOT approved High Visibility Safety Vest and Soft Cap/Hard Hat. Any authorized night work requires all personnel to wear a Mn/DOT approved full night safety suit (pants and jacket). { M-US-15-65666 C.S. 8214 T.H. 36 TIC Investments It shall be the responsibility of the applicant to utilize the "Gopher State One Call" excavation notice system as required under Minnesota Statute Chapter 216D, 48 hours prior to performing any excavation (Phone 651-454-0002 Twin Cities Metro Area or Toll Free 1-800-252-1166). The Excavator shall mark proposed excavation with paint and flags or in lieu of flags stakes may be used. All flags and stakes shall display the name and phone number of the Excavator. All areas of proposed excavation shall be considered "practical"for the use of white markings, pursuant to Minnesota State Statute 216D.05 (2). The Excavator shall acquire a Positive Response confirmation from Mn/DOT for all proposed excavations when the Gopher State One Call has indicated Mn/DOT utilities may be affected. The Excavator may call Mn/DOT Electrical Services Section (ESS) Dispatch Locating to confirm the status of Utility infrastructure owned by Mn/DOT. Mn/DOT Electrical Services Section (ESS) Dispatch Locating can be contacted at the following phone numbers; (651) 366 -5750 or(651) 366-5751. The Excavator is required to comply with the provisions of Minnesota Statutes chapter 216D when performing Excavation as defined in Minnesota Statutes §216D.01 (subdivision 5), and will be responsible for damages to facilities in accordance with Minnesota Statutes §216D.06. No material shall be deposited on the traveled roadway. All areas disturbed by the applicant shall be restored with a minimum of 6" of topsoil (according to MnDOT Standard Specification 3877 Table 1 Common Topsoil Borrow), then sodded or seeded. Seed or sod should be the same as/or compatible with the existing turf cover. If the areas are to be seeded, a MnDOT seed mixture comparable to the existing turf along with Category 3 blanket with all natural netting and stitching shall be used according to MnDOT Specification 2575. When frozen conditions prevent the applicant from completing turf restoration the applicant must temporarily stabilize the disturbed area. Use seed mix 22-111 following the winter seeding method and type 1 mulch following the winter mulching method in the 2014 MnDOT Standard Specification for Construction section 2575. The applicant is responsible for competing final turf restoration prior to May 15 of the following spring. All areas disturbed during construction within State right-of-way shall be restored to original or better condition. The applicant shall perpetuate all existing drainage. The applicant shall relocate and reconstruct the in-place drainage ditch along the highway as necessitated by the construction authorized by this permit. The new ditch shall match the grades and contours of the in-place drainage ditch. The applicant is required to preserve all existing survey monuments. If Mn/DOT determines that monuments have been disturbed or destroyed during construction activities, the applicant shall M-US-15-65666 C.S. 8214 T.H. 36 TIC Investments accept full responsibility for all costs incurred in the re-establishment of the monuments. All pavement markings shall be installed according to the pavements marking standards found at www.dot.state.mn.us/metro/trafficenq/control/cadd.html Any signing affected by this permit must be immediately installed or reinstalled according to the "Minnesota Manual on Uniform Traffic Control Devices" ( MN MUTCD) any questions on signing or striping please contact Wayne Lindblom, 651-366-4371. It is expressly understood that this permit is issued subject to the applicant's compliance with the Minnesota Pollution Control Agency's General NPDES Permit for Construction Activities and any other affected Governmental Agencies. Winter work shall be considered from November 1 through April 15,work during this period shall be on a day-to-day basis at the discretion of the Roadway Regulation Supervisor. All work authorized by this permit and the restoration of the State's right of way shall be satisfactorily completed by 12/31/15. The applicant or his contractor shall notify the permit office at 651-234-7915 for final inspection. 5p fi I 1 10 I l' 11 }4' ' .0'• * 11 ''''‘ I.; == - = 2‘ ,(0 • i air 1 0' '', 1 ` ', 1 ,i, • . , 4.-• 14 ' , ,.--... .,.., 44 ,..p.:,Aijoi. 31. I L ' 1 ''',1k*'" * ' '''' ' * "4 ei = N-t."== ( ) a.. .r.? •-", 1 ' 1 i i I ck: . -- t i 1 .•,„ ' Cili (14 . 1, ...- , 4.._,.. , . „„ 1..............:, . :: : :4 4 „t 44. , , . cy) . , .„ I ' -, t l'u: A 1'. 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AI (£� O HL 3iiAY 0 — w ■.. kb" � - I J. ■ ii I - . _ ii 1 I ' eti II I"-- c t ay. ii Ili f 1 1 ITT-7. y � Ilki!�i� f as \\\\\\\\\\\C\' ice. L. 1 1■4 11 ! I I 1 i 1 1 1,11, 1 i '■s: I. i'� fo ■ t - . x -- e Ili►I, Ei ■\ ' f� J I q , .t B ■ i ibl `• A■. j1 . - \,\',, \\\,'..\\\\\\\\\\\CCU 1Ra 14. j • n. j L g i jirspi) II . \ ,, 44"...-.N.L'.,.. :-• / ti, il 5 '(`ice \\ `f. t,: siii ii .. \' Li'\D y ' it. ■ i k ■ e / al °Kjd a > f i i IIT e e I. — y ..e+�lk f \\\\•__U \\\s. i.- R:.:'67,\' V".•\`\\\\\\\\milli\ ` n•,m•,mh\4S9 di --- , ■ I' L. 11- 1� {{iiN, 1 �j y if 1 II R. \.•fi i. n I •vKY■■Ylx/■K-^b'.MeacL�cM-Y NOCL\nyl.,d n:02-\3 MOOT Fenn 3079342(e5.l0a014) Document Management System ft MINNESOTA DEPARTMENT OF TRANSPORTATION District M 3 permit N 17"�.3�. (°5'b LOB APPLICATION FOR DRAINAGE PERMIT t C.S. B Lt 4 _T.H. 3 LP a' R.P. • (1 IS SECTION FOR MnDOT OFFICE USE ONLY.) ATTACHA SKETCH OF THE PROPOSED WORK AREA AND RELATION TO TRUNK HIGHWAY. SUCH SKETCH SHALL BE DRAWW TO SCALE WHEN REQUIRED BY THE ENGINEER.RINT OR TYPE APPLICATION. SIGN IN SPACE PROVIDED. SUBMIT TO LOCAL OFFICE OF MINNESOTA DEPARTMENT OF TRANSPORTATION. APPLICANT TELEPHONE ADDRESS(Street,City,Salve,Zip) 774- rv6sTAEntiTSe 1.-1.-e.- 452-887-6(0 z 2607 wh r&.6s t,-Ave, 44,19k , M PROPERTY OWNER TELEPHONE ADDRESS(Street,City,State,Zip) S51 0th 1 / 5a,b.t• non S p It cwt/`f" PARTY PERFORMING WO TELEPHONE ADDRESS(Sweet,City,State,Zip) O OF PROPOSED WORK (Cityfrowro)dp) (County) (Distance) (N F C ROA E R LAN ARK Highway 3E, in ca 1' ti rte, , hit& -F OLA s �f ' c 63.�"+o TYPE OF DRAINAGE ❑Tile Oulet Open Ditch ❑Para)kl lmtallation AREA TO BE DRAINED CASING SIZE AND TYPE PIPE SIZE AND TYPE El Other S nrwYN Se.64.1ee- ' Mk er-P 7• Acres A_4 • (Z"e(P LEGAL DESCRIPTION OF PROPERTY t r I- WORK TO START ON OR AFTER WORK TO BE COMPLETED BY L r( Etta.t, Qxk Pat Ttta9► 4 6,strJt!A5 (Date) 3/t /!5 (Date) 12../3l i(5 J WILL THIS WORK BE WITHIN TRIBAL LANDS 0 Yes egiNo IR YES,WHICH ONE The undersigned applicant hereby accepts the terms and conditions of this permit and agrees to Dilly comply therewith to the satisfaction of the Minnesota Department of Transportation.The applicant understands and agrees that no work in connection with this application will be started until the application has been approved and the permit issued. The applicant also understands that this permit may also be subject to the approval of local road authorities having joint supervision over said street or highway,and may be subject to applicant's compliance with the rules and regulations of the Minnesota Environmental Quality Board and/or any other affected governmental agencies. The undersigned applicant expressly agrees that except for negligent acts of the State,its agents and employees,the applicant or his/her agents or contractor shall assume all liability for,and save the State,its agents and employees,harmless from any and all claims for damages,actions or causes of action arising out of the work to be done in connection with this application and permit. f- t Name and Title -5 ��� aa'`` 0� �� Email address ha uAX\ rl\ e a,,,..CS CG. co,„,..., (Para er TYPO Date Z lI ti 1 6 Signature I — r /1�/ DO NOT WRITE BELOW THIS UNE —_-- IPERMIT NOT VALID UNLESS SEE PAGE 2 FOR PERTINENT BEARING SIGNATURE AND NUMBER AUTHORIZATION OF PERMIT REGULATIONS AND CONDITIONS It is expressly understood that this permit is conditioned upon restoration of the trunk highway right-of-way to its original condition or to a satisfactory condition. Ia consideration of the applicant's agreement to comply in all respects with the applicable laws and the conditions of the Commissioner of Transportation pertaining to this permit,permission is hereby granted for the work to be performed as described in the above application,said work to be performed in accordance with the following special provisions: SEE ATTACHED SPECIAL PROVISIONS Z///3 t /(r �. �� 3 3� /s' DatE Afl W To Be Completed By '• Signature of Authorized Signature DISTRIBUTION D 'IT REQUIREMENTS DEPOSIT TYPE Original to Area Maintenance Engineer ❑No Deposit Required Cashier's Check N Applicant ❑Deposit Required in the Amount of S Certified Check N Subarea Supervisor Date Deposit Received Money Order N Roadway Regulations Supervisor Deposit to be returned upon satisfactory completion of all work. Bond N DATE WORE COMPLETED (The date when the went Is completed must be reported I.the focal MnDOT Reedwq RegulationsSapervberJ MINNESOTA LAW REGULATING DRAINAGE WORK The State law is as follows: 160.20 DRAINAGE Subdivision 1. Connecting drains to highway drains. When the course of natural drainage of any land runs to a highway,the owner of the land shall have the right to enter upon the highway for the purpose of connecting a drain or ditch with any drain or ditch constructed along or across the highway,but before making the connections,shall first obtain a written permit for the connections from the road authority having jurisdiction. The connections shall be made in accordance with specifications set forth in the permits. The road authority shall have power to prescribe and enforce reasonable rules and regulations with reference to the connections. The highway shall be left in as good condition In every way as It was before the connection was made. Subd.3.Installing drain tile along or across highway. When the course of natural drainage of any land runs to a highway,the owner of the land who has been granted a permit as provided in subdivision 4 may install drain tile along or across the highway right-of-way along the general course of the natural drainageway,provided further that there will be no diversion of drainage waters away from the natural receiving drainageway immediately downstream from the highway. Any Installations shall be made in accordance with specifications set forth In the permit and any rules that apply to the installations. When any installation is made pursuant to this subdivision the highway shall be left in as good condition In every respect as it was before the installation was made. Subd.4.Conditions (a)A road authority may accept applications for permits for Installation of drain tile along or across the right-of-way under its Jurisdiction. The road authority may adopt reasonable rules for the Installations and may require a bond before granting any permit. Permits for installation along a highway right-of-way must ensure that the length of the installation is restricted to the minimum necessary to achieve the desired agricultural benefits. A permit must not allow open trenches to be left on the right-of-way after installation of the drain tile is completed. A road authority that grants a permit for drain tile Installation is not responsible for any damage to that installation resulting from the action of the authority or any other permittee utilizing the right-of- way. (b)A person who installs drain tile along or across a highway right-of-way without obtaining a permit as provided in this section is guilty of a misdemeanor. (c)The commissioner shall take no action under this section which will result in the loss of any federal aid for highway construction in the state. (d)For the purpose of this section,"highway"means any highway as defined in section 160.02 which is located outside the corporate limits of a home rule charter or statutory dty. SPECIFICATIONS AND PERMIT REQUIREMENTS • All construction details shall be entered on Form TP30795-02 or supplemental sheets as required. • Installations shall be in accordance with Specification 2502 of the Minnesota Standard Specifications for Construction. • Where work on or near the traveled roadway is necessary,proper signs,channelizing devices,warning lights,and barricades shall be erected to protect traffic,employees,and pedestrians.All traffic control devices and methods shall conform to the Minnesota Field Manual on Temporary Traffic Control Zone Layouts,Minnesota Manual on Uniform Traffic Control Devices(MMUTCD),Minnesota Standard Sign Manual,and the appropriate provisions of Standard Specification 1710. • Allowable materials for longitudinal installations shall be: o Corrugated metal pipe(Std.Plate 3040) o Reinforced concrete pipe(std.Plate 3000) o Thermoplastic pipe(Spec.3245) • Connections of field tile to allowable longitudinal Installation shall be made a minimum of three feet beyond the highway right of way line using an inspection tee.(Std.Plate 3143) • All casings shall be jacked or bored. • AN system Installations shall be at a minimum of three feet below existing ground. • No installations will be permitted In the shoulder or inslope of the roadway. • The owner,his successor or assigns,shall maintain the installation in perpetuity. • If drainage work to be done lies within the limits of any city,village or watershed district,permission must be obtained from the local governing authority involved.If drainage work to be done involves county,Judicial,or group drainage systems,permission must also be obtained from the authority involved. • The applicant shall comply with all rules and regulations of the Minnesota Environmental Quality Board and any other affected governmental agencies. • The applicant shall furnish,install and maintain an approved culvert marker post at outlet of drainage tile. • The drainage work shall not interfere with any existing utility facilities on the trunk highway right-of-way. • Removal of trees or shrubs within the right of way requires prior approval of the Area Maintenance Engineer or his authorized representative. • No equipment will be permitted to operate on or across the roadway which will damage the roadway or shoulder surface. • The State reserves the right to remove or repair,with Its own forces but at the expense of the applicant,any tile outlet which is not maintained and causes damage to adjacent right-of-way.Applicant must obtain a permit to do maintenance work on the drainage system covered by this permit. • If the Minnesota Department of Transportation shall make any improvements or change on all or any part of its right of way upon,over,under or along the trunk highway,then and in every case the applicant herein named shall,after notice from the Commissioner of Transportation or his authorized agents,proceed to alter,change,vacate or remove from trunk highway right of way said works necessary to conform with said changes without cost to the State of Minnesota. • After work on a project Is completed the applicant must notify the Area Maintenance Engineer or authorized representative that such work has been completed and Is ready for final inspection and acceptance. • Issuance of this permit is subject to the provisions of Chapter 103B of the Minnesota Statutes. SECURITY DEPOSIT may be required to insure proper restoration of highway surfaces and to cover payment for any damage to highways or State property. Additionally,any expense incurred by the Minnesota Department of Transportation above the posted deposit will be assessed against the applicant. In the event construction has not been started by the"WORK TO BE COMPLETED BY"date,this permit becomes null and void and deposit refunded. MnDOT Form 30795-02(Drainage permit)(06-10-2014) Page 2 of 2 3 I . M-D-15-65668 C.S. 8214 T.H. 36 TLC Investments THIS PERMIT IS SUBJECT TO THE FOLLOWING CONDITIONS: The installation authorized in this permit will be inspected by Rod Clark, MN/DOT Roadway Regulation Inspector 651-234-7915. The applicant or its contractor will notify Mn/DOT's inspector at least two days prior to starting the installation. Any questions the applicant may have pertaining to Mn/DOT's storm water facilities shall be presented at this time. Mn/DOTs inspector will approve all highway materials prior to placement, and the total installation must meet with his/her satisfaction. Attached is a drainage map that satisfies the requirements for Mn/DOT storm water utility locates per Minnesota Statutes 216D and Minnesota Rules 7560.0250. By acceptance of a permit from Mn/DOT, the applicant agrees that it, and all of its agents or contractors, shall use Mn/DOT's drainage map to identify the location of Mn/DOT drainage facilities as satisfaction of the requirements of Minnesota Statutes Ch. 216D and Minnesota Rules 7650.0250 with respect to Mn/DOT's storm water drainage facilities. This permit authorizes the applicant to modify the existing drainage pattern to TH 36 right of way, near the intersection with Oxboro Ave, in the city of Oak Park Heights as shown on applicant's plan sheet(s). Any lane closures shall be approved by this office at 651-234-7915, 24 hours prior to the lane closure. The hours of the lane closure shall be determined by this office. The applicant shall provide in-house inspection at all times while working on trunk highway right of way. The applicant shall furnish, install and maintain all required traffic control devices according to the Minnesota Field Manual on Temporary Traffic Control Zone Layouts (see web page @ `! www.dot.state.mn.us/trafceng/),while performing the construction authorized by this permit. Due to the Twin City rush hour restrictions, no work involving interference with or causing a distraction to traffic will be allowed from 6:00 AM to 9:00 AM, or from 3:00 PM to 6:00 PM. unless authorized by the MN/DOT Permit Office at 651-234-7915. If the temporary traffic control zone is to remain in one place for more than 3 days or involves a detour, road closure or a situation where the typical layouts do not apply, the applicant shall prepare a specific Traffic Control Plan for approval by Mn/DOT prior to start of any construction. Temporary lane restrictions will be permitted as detailed at the following link: http://www.dot.state.mn.us/metro/trafficenc/Ianeclosure/index.html All persons while performing authorized work on Mn/DOT Right of Way shall be required to wear a Mn/DOT approved High Visibility Safety Vest and Soft Cap/Hard Hat. Any authorized night work requires all personnel to wear a Mn/DOT approved full night safety suit (pants and jacket). M-D-15-65668 C.S. 8214 T.H. 36 TLC Investments It shall be the responsibility of the applicant to utilize the "Gopher State One Call" excavation notice system as required under Minnesota Statute Chapter 216D, 48 hours prior to performing any excavation (Phone 651-454-0002 Twin Cities Metro Area or Toll Free 1-800-252-1166). The Excavator shall mark proposed excavation with paint and flags or in lieu of flags stakes may be used. All flags and stakes shall display the name and phone number of the Excavator. All areas of proposed excavation shall be considered "practical"for the use of white markings, pursuant to Minnesota State Statute 216D.05 (2). The Excavator shall acquire a Positive Response confirmation from Mn/DOT for all proposed excavations when the Gopher State One Call has indicated Mn/DOT utilities may be affected. The Excavator may call Mn/DOT Electrical Services Section (ESS) Dispatch Locating to confirm the status of Utility infrastructure owned by Mn/DOT. Mn/DOT Electrical Services Section (ESS) Dispatch Locating can be contacted at the following phone numbers; (651) 366 -5750 or(651) 366-5751. The Excavator is required to comply with the provisions of Minnesota Statutes chapter 216D when performing Excavation as defined in Minnesota Statutes §216D.01 (subdivision 5), and will be responsible for damages to facilities in accordance with Minnesota Statutes §216D.06. No material shall be deposited on the traveled roadway. All areas disturbed by the applicant shall be restored with a minimum of 6" of topsoil (according to MnDOT Standard Specification 3877 Table 1 Common Topsoil Borrow), then sodded or seeded. Seed or sod should be the same as/or compatible with the existing turf cover. If the areas are to be seeded, a MnDOT seed mixture comparable to the existing turf along with Category 3 blanket with all natural netting and stitching shall be used according to MnDOT Specification 2575. When frozen conditions prevent the applicant from completing turf restoration the applicant must temporarily stabilize the disturbed area. Use seed mix 22-111 following the winter seeding method and type 1 mulch following the winter mulching method in the 2014 MnDOT Standard Specification for Construction section 2575. The applicant is responsible for competing final turf restoration prior to May 15 of the following spring. All areas disturbed during construction within State right-of-way shall be restored to original or better condition. The applicant shall perpetuate all existing drainage. The applicant shall relocate and reconstruct the in-place drainage ditch along the highway as necessitated by the construction authorized by this permit. The new ditch shall match the grades and contours of the in-place drainage ditch. The applicant is required to preserve all existing survey monuments. If Mn/DOT determines that M-D-15-65668 C.S. 8214 T.H. 36 TLC Investments monuments have been disturbed or destroyed during construction activities, the applicant shall accept full responsibility for all costs incurred in the re-establishment of the monuments. All pavement markings shall be installed according to the pavements marking standards found at www.dot.state.mn.us/metro/trafficeng/controllcadd.html Any signing affected by this permit must be immediately installed or reinstalled according to the "Minnesota Manual on Uniform Traffic Control Devices" ( MN MUTCD) any questions on signing or striping please contact Wayne Lindblom, 651-366-4371. It is expressly understood that this permit is issued subject to the applicant's compliance with the Minnesota Pollution Control Agency's General NPDES Permit for Construction Activities and any other affected Governmental Agencies. Winter work shall be considered from November 1 through April 15,work during this period shall be on a day-to-day basis at the discretion of the Roadway Regulation Supervisor. w' All work authorized by this permit and the restoration of the State's right of way shall be satisfactorily completed by 12/31/15. 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EIAISILOILIGOOLMILIMILINIKI 1111111MIK MIMI NM MOM 1 71"21?"1":".arrar"' MS= a <2SID> 0 \J 3 D A ON 1P (Subca) Reach 'On, Routing Diagram for EXISTING DRAINAGE-OAK RIDGE MEMORY CARE Prepared by{enter your company name here), Printed 2/5/2015 HydroCAD®10.00-11 s/n 00744 ©2014 HydroCAD Software Solutions LLC EXISTING DRAINAGE - OAK RIDGE MEMORY CARE Type II 24-hr 2YR Rainfall=2.75" Prepared by {enter your company name here} Printed 2/5/2015 HydroCAD®10.00-11 s/n 00744 ©2014 HydroCAD Software Solutions LLC Page 2 Time span=0.00-200.00 hrs, dt=0.01 hrs, 20001 points Runoff by SCS TR-20 method, UH=SCS, Weighted-CN Reach routing by Dyn-Stor-Ind method - Pond routing by Dyn-Stor-Ind method Subcatchment 1S: Runoff Area=6.180 ac 31.88% Impervious Runoff Depth=0.15" Flow Length=1,085' Slope=0.1200'/' Tc=18.8 min CN=56 Runoff=0.24 cfs 0.079 af Subcatchment 2S: Runoff Area=0.540 ac 35.19% Impervious Runoff Depth=0.22" Flow Length=335' Slope=0.0450'/' Tc=11.1 min CN=59 Runoff=0.08 cfs 0.010 af Subcatchment 2S ID: Runoff Area=0.350 ac 100.00% Impervious Runoff Depth=2.52" Flow Length=335' Slope=0.0450'/' Tc=3.0 min CN=98 Runoff=1.49 cfs 0.073 af Pond 1 P: Peak Elev=867.22' Storage=0.001 af Inflow=1.49 cfs 0.163 af 24.0" Round Culvert n=0.013 L=52.0' S=0.0263'/' Outflow=1.48 cfs 0.163 af Pond 2P: Peak Elev=877.42' Inflow=1.49 cfs 0.084 af 18.0" Round Culvert n=0.025 L=46.0' S=0.1574'/' Outflow=1.49 cfs 0.084 af Pond 3P: Peak Elev=880.60' Storage=0.000 af Inflow=1.49 cfs 0.084 af Outflow=1.49 cfs 0.084 af Total Runoff Area=7.070 ac Runoff Volume=0.163 af Average Runoff Depth=0.28" 64.50%Pervious=4.560 ac 35.50%Impervious=2.510 ac EXISTING DRAINAGE - OAK RIDGE MEMORY CARE Type 1124-hr 2YR Rainfall=2.75" Prepared by{enter your company name here} Printed 2/5/2015 HydroCAD®10.00-11 s/n 00744 ©2014 HydroCAD Software Solutions LLC Page 3 Summary for Subcatchment 1S: Runoff = 0.24 cfs @ 12.26 hrs, Volume= 0.079 af, Depth= 0.15" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-200.00 hrs, dt= 0.01 hrs Type II 24-hr 2YR Rainfall=2.75" Area(ac) CN Description * 1.440 98 Paved parking, HSG A OFFSITE * 0.640 30 Woods, Good, HSG A OFFSITE * 1.110 39 >75%Grass cover, Good, HSG A OFFSITE 0.530 98 Paved parking, HSG A 0.850 30 Woods, Good, HSG A 1.610 39 >75%Grass cover, Good, HSG A 6.180 56 Weighted Average 4.210 68.12% Pervious Area 1.970 31.88% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 18.8 1,085 0.1200 0.96 Lag/CN Method, Summary for Subcatchment 2S: Runoff = 0.08 cfs @ 12.08 hrs, Volume= 0.010 af, Depth= 0.22" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-200.00 hrs, dt= 0.01 hrs Type II 24-hr 2YR Rainfall=2.75" Area (ac) CN Description 0.190 98 Paved parking, HSG A 0.050 30 Woods, Good, HSG A 0.300 39 >75%Grass cover, Good, HSG A 0.540 59 Weighted Average 0.350 64.81% Pervious Area 0.190 35.19% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 11.1 335 0.0450 0.50 Lag/CN Method, Summary for Subcatchment 2S ID: Runoff = 1.49 cfs @ 11.93 hrs, Volume= 0.073 af, Depth= 2.52" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-200.00 hrs, dt= 0.01 hrs Type II 24-hr 2YR Rainfall=2.75" EXISTING DRAINAGE - OAK RIDGE MEMORY CARE Type II 24-hr 2YR Rainfall=2.75" Prepared by{enter your company name here} Printed 2/5/2015 HydroCAD®10.00-11 s/n 00744 ©2014 HydroCAD Software Solutions LLC Paae 4 Area (ac) CN Description 0.350 98 Paved parking, HSG A 0.350 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 3.0 335 0.0450 1.89 Lag/CN Method, 1 Summary for Pond 1 P: Inflow Area= 7.070 ac, 35.50% Impervious, Inflow Depth = 0.28" for 2YR event Inflow = 1.49 cfs @ 11.94 hrs, Volume= 0.163 of Outflow = 1.48 cfs @ 11.94 hrs, Volume= 0.163 af, Atten= 1%, Lag= 0.4 min Primary = 1.48 cfs @ 11.94 hrs, Volume= 0.163 af Routing by Dyn-Stor-Ind method, Time Span=0.00-200.00 hrs, dt=0.01 hrs Peak Elev=867.22'@ 11.94 hrs Surf.Area= 0.003 ac Storage= 0.001 af Plug-Flow detention time= 1.3 min calculated for 0.163 of (100%of inflow) Center-of-Mass det. time= 1.1 min (885.7-884.6 ) Volume Invert Avail.Storage Storage Description #1 866.72' 1.460 af Custom Stage Data(Prismatic) Listed below(Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (acres) (acre-feet) (acre-feet) 866.72 0.001 0.000 0.000 868.00 0.006 0.004 0.004 870.00 0.010 0.016 0.020 872.00 0.030 0.040 0.060 874.00 0.080 0.110 0.170 876.00 0.150 0.230 0.400 878.00 0.260 0.410 0.810 880.00 0.390 0.650 1.460 Device Routing Invert Outlet Devices #1 Primary 866.72' 24.0" Round Culvert L=52.0' Ke= 0.500 Inlet/Outlet Invert=866.72'/865.35' S=0.0263 '/' Cc=0.900 n= 0.013, Flow Area=3.14 sf Primary OutFlow Max=1.48 cfs @ 11.94 hrs HW=867.22' (Free Discharge) L1=Culvert (Inlet Controls 1.48 cfs @ 2.41 fps) Summary for Pond 2P: Inflow Area= 0.890 ac, 60.67% Impervious, Inflow Depth = 1.13" for 2YR event Inflow = 1.49 cfs © 11.94 hrs, Volume= 0.084 af Outflow = 1.49 cfs @ 11.94 hrs, Volume= 0.084 af, Atten= 0%, Lag=0.0 min Primary = 1.49 cfs© 11.94 hrs, Volume= 0.084 af EXISTING DRAINAGE - OAK RIDGE MEMORY CARE Type 1124-hr 2YR Rainfall=2.75" Prepared by {enter your company name here} Printed 2/5/2015 HydroCAD®10.00-11 s/n 00744 ©2014 HydroCAD Software Solutions LLC Page 5 Routing by Dyn-Stor-Ind method, Time Span= 0.00-200.00 hrs, dt= 0.01 hrs Peak Elev=877.42' @ 11.94 hrs Device Routing Invert Outlet Devices #1 Primary 876.87' 18.0" Round Culvert L=46.0' Ke= 0.500 Inlet/Outlet Invert=876.87'/869.63' S= 0.1574'/' Cc= 0.900 n= 0.025 Corrugated metal, Flow Area= 1.77 sf Primary OutFlow Max=1.49 cfs @ 11.94 hrs HW=877.42' TW=867.22' (Dynamic Tailwater) L1=Culvert (Inlet Controls 1.49 cfs @ 2.53 fps) Summary for Pond 3P: Inflow Area= 0.890 ac, 60.67% Impervious, Inflow Depth = 1.13" for 2YR event Inflow = 1.49 cfs @ 11.93 hrs, Volume= 0.084 af Outflow = 1.49 cfs @ 11.94 hrs, Volume= 0.084 af, Atten= 0%, Lag= 0.2 min Primary = 1.49 cfs @ 11.94 hrs, Volume= 0.084 of Routing by Dyn-Stor-Ind method, Time Span=0.00-200.00 hrs, dt= 0.01 hrs Peak Elev=880.60'@ 11.94 hrs Surf.Area= 0.004 ac Storage=0.000 af Plug-Flow detention time= 0.2 min calculated for 0.083 of (100%of inflow) Center-of-Mass det. time=0.2 min ( 778.0- 777.8 ) Volume Invert Avail.Storage Storage Description #1 880.47' 0.031 of Custom Stage Data(Prismatic) Listed below(Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (acres) (acre-feet) (acre-feet) 880.47 0.001 0.000 0.000 882.00 0.040 0.031 0.031 Device Routing Invert Outlet Devices #1 Primary 880.47' 24.0"x 36.0" Horiz. Orifice/Grate C= 0.600 Limited to weir flow at low heads Primary OutFlow Max=1.49 cfs @ 11.94 hrs HW=880.60' TW=877.42' (Dynamic Tailwater) L1=Orifice/Grate (Weir Controls 1.49 cfs @ 1.17 fps) EXISTING DRAINAGE - OAK RIDGE MEMORY CARE Type 1124-hr 10YR Rainfall=4.15" Prepared by {enter your company name here} Printed 2/5/2015 HydroCAD®10.00-11 s/n 00744 ©2014 HydroCAD Software Solutions LLC Pape 6 Time span=0.00-200.00 hrs, dt=0.01 hrs, 20001 points Runoff by SCS TR-20 method, UH=SCS, Weighted-CN Reach routing by Dyn-Stor-Ind method - Pond routing by Dyn-Stor-Ind method Subcatchment 1S: Runoff Area=6.180 ac 31.88% Impervious Runoff Depth=0.64" Flow Length=1,085' Slope=0.1200'/' Tc=18.8 min CN=56 Runoff=3.23 cfs 0.328 af Subcatchment 2S: Runoff Area=0.540 ac 35.19% Impervious Runoff Depth=0.78" Flow Length=335' Slope=0.0450'/' Tc=11.1 min CN=59 Runoff=0.54 cfs 0.035 af Subcatchment 2S ID: Runoff Area=0.350 ac 100.00% Impervious Runoff Depth=3.91" Flow Length=335' Slope=0.0450'/' Tc=3.0 min CN=98 Runoff=2.26 cfs 0.114 af Pond 1 P: Peak Elev=867.55' Storage=0.002 af Inflow=3.84 cfs 0.478 af 24.0" Round Culvert n=0.013 L=52.0' S=0.0263'/' Outflow=3.83 cfs 0.478 af Pond 2P: Peak Elev=877.60' Inflow=2.49 cfs 0.149 af 18.0" Round Culvert n=0.025 L=46.0' S=0.1574'/' Outflow=2.49 cfs 0.149 af Pond 3P: Peak Elev=880.65' Storage=0.001 af Inflow=2.49 cfs 0.149 af Outflow=2.49 cfs 0.149 af Total Runoff Area=7.070 ac Runoff Volume=0.478 af Average Runoff Depth=0.81" 64.50%Pervious=4.560 ac 35.50%Impervious=2.510 ac EXISTING DRAINAGE - OAK RIDGE MEMORY CARE Type 1124-hr 10YR Rainfall=4.15" Prepared by{enter your company name here} Printed 2/5/2015 HydroCAD®10.00-11 s/n 00744 ©2014 HydroCAD Software Solutions LLC Page 7 Summary for Subcatchment 1S: Runoff = 3.23 cfs @ 12.16 hrs, Volume= 0.328 af, Depth= 0.64" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-200.00 hrs, dt= 0.01 hrs Type II 24-hr 10YR Rainfall=4.15" Area (ac) CN Description * 1.440 98 Paved parking, HSG A OFFSITE * 0.640 30 Woods, Good, HSG A OFFSITE * 1.110 39 >75%Grass cover, Good, HSG A OFFSITE 0.530 98 Paved parking, HSG A 0.850 30 Woods, Good, HSG A 1.610 39 >75%Grass cover, Good, HSG A 6.180 56 Weighted Average 4.210 68.12% Pervious Area 1.970 31.88% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 18.8 1,085 0.1200 0.96 Lag/CN Method, Summary for Subcatchment 2S: Runoff = 0.54 cfs @ 12.05 hrs, Volume= 0.035 af, Depth= 0.78" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-200.00 hrs, dt= 0.01 hrs Type II 24-hr 10YR Rainfall=4.15" Area(ac) CN Description 0.190 98 Paved parking, HSG A 0.050 30 Woods, Good, HSG A 0.300 39 >75%Grass cover, Good, HSG A 0.540 59 Weighted Average 0.350 64.81% Pervious Area 0.190 35.19% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 11.1 335 0.0450 0.50 Lag/CN Method, Summary for Subcatchment 2S ID: Runoff = 2.26 cfs @ 11.93 hrs, Volume= 0.114 af, Depth= 3.91" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span=0.00-200.00 hrs, dt= 0.01 hrs Type II 24-hr 10YR Rainfall=4.15" it EXISTING DRAINAGE- OAK RIDGE MEMORY CARE Type 1124-hr 10YR Rainfall=4.15" Prepared by{enter your company name here} Printed 2/5/2015 HydroCAD®10.00-11 s/n 00744 ©2014 HydroCAD Software Solutions LLC Page 8 Area(ac) CN Description 0.350 98 Paved parking, HSG A 0.350 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 3.0 335 0.0450 1.89 Lag/CN Method, Summary for Pond 1 P: Inflow Area= 7.070 ac, 35.50% Impervious, Inflow Depth = 0.81" for 10YR event Inflow = 3.84 cfs @ 12.14 hrs, Volume= 0.478 af Outflow = 3.83 cfs @ 12.14 hrs, Volume= 0.478 af, Atten= 0%, Lag= 0.3 min Primary = 3.83 cfs @ 12.14 hrs, Volume= 0.478 of Routing by Dyn-Stor-Ind method, Time Span=0.00-200.00 hrs, dt=0.01 hrs Peak Elev=867.55'@ 12.14 hrs Surf.Area= 0.004 ac Storage= 0.002 af Plug-Flow detention time=0.7 min calculated for 0.478 af (100%of inflow) Center-of-Mass det. time= 0.7 min ( 875.9-875.2) Volume Invert Avail.Storage Storage Description #1 866.72' 1.460 of Custom Stage Data(Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (acres) (acre-feet) (acre-feet) 866.72 0.001 0.000 0.000 868.00 0.006 0.004 0.004 870.00 0.010 0.016 0.020 872.00 0.030 0.040 0.060 874.00 0.080 0.110 0.170 876.00 0.150 0.230 0.400 878.00 0.260 0.410 0.810 880.00 0.390 0.650 1.460 Device Routing Invert Outlet Devices #1 Primary 866.72' 24.0" Round Culvert L=52.0' Ke=0.500 Inlet/Outlet Invert= 866.72'/865.35' S=0.0263 '/' Cc= 0.900 n= 0.013, Flow Area=3.14 sf Primary OutFlow Max=3.83 cfs @ 12.14 hrs HW=867.55' (Free Discharge) t-1=Culvert (Inlet Controls 3.83 cfs @ 3.10 fps) Summary for Pond 2P: Inflow Area= 0.890 ac, 60.67% Impervious, Inflow Depth = 2.02" for 10YR event Inflow = 2.49 cfs @ 11.94 hrs, Volume= 0.149 af Outflow = 2.49 cfs @ 11.94 hrs, Volume= 0.149 af, Atten=0%, Lag=0.0 min Primary = 2.49 cfs @ 11.94 hrs, Volume= 0.149 of EXISTING DRAINAGE- OAK RIDGE MEMORY CARE Type 1124-hr 10YR Rainfall=4.15" Prepared by{enter your company name here} Printed 2/5/2015 HydroCAD®10.00-11 s/n 00744 ©2014 HydroCAD Software Solutions LLC Page 9 Routing by Dyn-Stor-Ind method, Time Span= 0.00-200.00 hrs, dt= 0.01 hrs Peak Elev= 877.60'@ 11.94 hrs Device Routing Invert Outlet Devices #1 Primary 876.87' 18.0" Round Culvert L=46.0' Ke= 0.500 Inlet/Outlet Invert=876.87'/869.63' S= 0.1574'1 Cc= 0.900 n= 0.025 Corrugated metal, Flow Area= 1.77 sf Primary OutFlow Max=2.48 cfs @ 11.94 hrs HW=877.60' TW=867.42' (Dynamic Tailwater) t1=Culvert (Inlet Controls 2.48 cfs @ 2.91 fps) Summary for Pond 3P: Inflow Area= 0.890 ac, 60.67% Impervious, Inflow Depth = 2.02" for 10YR event Inflow = 2.49 cfs @ 11.94 hrs, Volume= 0.149 of Outflow = 2.49 cfs @ 11.94 hrs, Volume= 0.149 af, Atten= 0%, Lag= 0.2 min Primary = 2.49 cfs @ 11.94 hrs, Volume= 0.149 of Routing by Dyn-Stor-Ind method, Time Span= 0.00-200.00 hrs, dt= 0.01 hrs Peak Elev=880.65'@ 11.94 hrs Surf.Area= 0.006 ac Storage=0.001 af Plug-Flow detention time= 0.2 min calculated for 0.149 af (100%of inflow) Center-of-Mass det. time= 0.2 min ( 780.7- 780.5) Volume Invert Avail.Storage Storage Description #1 880.47' 0.031 af Custom Stage Data(Prismatic) Listed below(Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (acres) (acre-feet) (acre-feet) 880.47 0.001 0.000 0.000 882.00 0.040 0.031 0.031 Device Routing Invert Outlet Devices #1 Primary 880.47' 24.0"x 36.0" Horiz. Orifice/Grate C= 0.600 Limited to weir flow at low heads Primary OutFlow Max=2.48 cfs @ 11.94 hrs HW=880.65' TW=877.60' (Dynamic Tailwater) L1=Orifice/Grate (Weir Controls 2.48 cfs @ 1.38 fps) EXISTING DRAINAGE - OAK RIDGE MEMORY CARE Type 1124-hr 100YR Rainfall=5.90" Prepared by {enter your company name here} Printed 2/5/2015 HydroCAD®10.00-11 s/n 00744 ©2014 HydroCAD Software Solutions LLC Page 10 Time span=0.00-200.00 hrs, dt=0.01 hrs, 20001 points Runoff by SCS TR-20 method, UH=SCS, Weighted-CN Reach routing by Dyn-Stor-Ind method - Pond routing by Dyn-Stor-Ind method Subcatchment 1S: Runoff Area=6.180 ac 31.88% Impervious Runoff Depth=1.54" Flow Length=1,085' Slope=0.1200 7' Tc=18.8 min CN=56 Runoff=9.89 cfs 0.792 af Subcatchment 2S: Runoff Area=0.540 ac 35.19% Impervious Runoff Depth=1.78" Flow Length=335' Slope=0.0450 '/' Tc=11.1 min CN=59 Runoff=1.37 cfs 0.080 af Subcatchment 2S ID: Runoff Area=0.350 ac 100.00% Impervious Runoff Depth=5.66" Flow Length=335' Slope=0.0450'/' Tc=3.0 min CN=98 Runoff=3.23 cfs 0.165 af Pond 1 P: Peak Elev=868.28' Storage=0.006 af Inflow=11.22 cfs 1.037 af 24.0" Round Culvert n=0.013 L=52.0' S=0.0263'/' Oufflow=11.21 cfs 1.037 af Pond 2P: Peak Elev=877.83' Inflow=4.02 cfs 0.245 af 18.0" Round Culvert n=0.025 L=46.0' S=0.1574'/' Outflow=4.02 cfs 0.245 af Pond 3P: Peak Elev=880.72' Storage=0.001 af Inflow=4.02 cfs 0.245 af Outflow=4.02 cfs 0.245 af Total Runoff Area=7.070 ac Runoff Volume= 1.037 of Average Runoff Depth= 1.76" 64.50%Pervious=4.560 ac 35.50%Impervious=2.510 ac EXISTING DRAINAGE - OAK RIDGE MEMORY CARE Type 1124-hr 100YR Rainfall=5.90" Prepared by{enter your company name here} Printed 2/5/2015 HydroCAD®10.00-11 s/n 00744 ©2014 HydroCAD Software Solutions LLC Page 11 Summary for Subcatchment 1S: Runoff = 9.89 cfs @ 12.13 hrs, Volume= 0.792 af, Depth= 1.54" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-200.00 hrs, dt= 0.01 hrs Type II 24-hr 100YR Rainfall=5.90" Area (ac) CN Description * 1.440 98 Paved parking, HSG A OFFSITE * 0.640 30 Woods, Good, HSG A OFFSITE * 1.110 39 >75%Grass cover, Good, HSG A OFFSITE 0.530 98 Paved parking, HSG A 0.850 30 Woods, Good, HSG A 1.610 39 >75%Grass cover, Good, HSG A 6.180 56 Weighted Average 4.210 68.12% Pervious Area 1.970 31.88% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 18.8 1,085 0.1200 0.96 Lag/CN Method, Summary for Subcatchment 2S: Runoff = 1.37 cfs @ 12.04 hrs, Volume= 0.080 af, Depth= 1.78" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-200.00 hrs, dt= 0.01 hrs Type II 24-hr 100YR Rainfall=5.90" Area(ac) CN Description 0.190 98 Paved parking, HSG A 0.050 30 Woods, Good, HSG A 0.300 39 >75%Grass cover, Good, HSG A 0.540 59 Weighted Average 0.350 64.81% Pervious Area 0.190 35.19% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 11.1 335 0.0450 0.50 Lag/CN Method, Summary for Subcatchment 2S ID: Runoff = 3.23 cfs @ 11.93 hrs, Volume= 0.165 af, Depth= 5.66" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-200.00 hrs, dt=0.01 hrs Type II 24-hr 100YR Rainfall=5.90" EXISTING DRAINAGE - OAK RIDGE MEMORY CARE Type II 24-hr 100YR Rainfall=5.90" Prepared by{enter your company name here} Printed 2/5/2015 HydroCAD®10.00-11 sin 00744 ©2014 HydroCAD Software Solutions LLC Page 12 Area(ac) CN Description 0.350 98 Paved parking, HSG A 0.350 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 3.0 335 0.0450 1.89 Lag/CN Method, Summary for Pond 1 P: Inflow Area= 7.070 ac, 35.50% Impervious, Inflow Depth = 1.76" for 100YR event Inflow = 11.22 cfs @ 12.12 hrs, Volume= 1.037 of Outflow = 11.21 cfs @ 12.13 hrs, Volume= 1.037 af, Atten=0%, Lag= 0.4 min Primary = 11.21 cfs @ 12.13 hrs, Volume= 1.037 of Routing by Dyn-Stor-Ind method, Time Span= 0.00-200.00 hrs, dt= 0.01 hrs Peak Elev=868.28' @ 12.13 hrs Surf.Area=0.007 ac Storage= 0.006 af Plug-Flow detention time= 0.6 min calculated for 1.037 af (100%of inflow) Center-of-Mass det. time= 0.6 min (860.2- 859.7) Volume Invert Avail.Storage Storage Description #1 866.72' 1.460 of Custom Stage Data(Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (acres) (acre-feet) (acre-feet) 866.72 0.001 0.000 0.000 868.00 0.006 0.004 0.004 870.00 0.010 0.016 0.020 872.00 0.030 0.040 0.060 874.00 0.080 0.110 0.170 876.00 0.150 0.230 0.400 878.00 0.260 0.410 0.810 880.00 0.390 0.650 1.460 Device Routing Invert Outlet Devices #1 Primary 866.72' 24.0" Round Culvert L= 52.0' Ke= 0.500 Inlet/Outlet Invert= 866.72'/865.35' S=0.0263 '/' Cc= 0.900 n= 0.013, Flow Area= 3.14 sf Primary OutFlow Max=11.20 cfs @ 12.13 hrs HW=868.28' (Free Discharge) t--1=Culvert (Inlet Controls 11.20 cfs @ 4.26 fps) Summary for Pond 2P: Inflow Area= 0.890 ac, 60.67% Impervious, Inflow Depth = 3.30" for 100YR event Inflow = 4.02 cfs @ 11.94 hrs, Volume= 0.245 of Outflow = 4.02 cfs @ 11.94 hrs, Volume= 0.245 af, Atten= 0%, Lag=0.0 min Primary = 4.02 cfs @ 11.94 hrs, Volume= 0.245 af II EXISTING DRAINAGE - OAK RIDGE MEMORY CARE Type 1124-hr 100YR Rainfall=5.90" Prepared by {enter your company name here) Printed 2/5/2015 HydroCAD®10.00-11 s/n 00744 ©2014 HydroCAD Software Solutions LLC Page 13 Routing by Dyn-Stor-Ind method, Time Span= 0.00-200.00 hrs, dt= 0.01 hrs Peak Elev= 877.83' @ 11.94 hrs Device Routing Invert Outlet Devices #1 Primary 876.87' 18.0" Round Culvert L=46.0' Ke=0.500 Inlet/Outlet Invert= 876.87'/869.63' S= 0.1574'/' Cc=0.900 n= 0.025 Corrugated metal, Flow Area= 1.77 sf Primary OutFlow Max=4.01 cfs @ 11.94 hrs HW=877.83' TW=867.89' (Dynamic Tailwater) L1=Culvert (Inlet Controls 4.01 cfs @ 3.34 fps) Summary for Pond 3P: Inflow Area= 0.890 ac, 60.67% Impervious, Inflow Depth = 3.30" for 100YR event Inflow = 4.02 cfs @ 11.94 hrs, Volume= 0.245 of Outflow = 4.02 cfs @ 11.94 hrs, Volume= 0.245 af, Atten= 0%, Lag= 0.2 min Primary = 4.02 cfs @ 11.94 hrs, Volume= 0.245 of Routing by Dyn-Stor-Ind method,Time Span=0.00-200.00 hrs, dt=0.01 hrs Peak Elev=880.72'@ 11.94 hrs Surf.Area=0.007 ac Storage= 0.001 af Plug-Flow detention time= 0.2 min calculated for 0.245 of (100%of inflow) Center-of-Mass det. time= 0.2 min ( 780.9- 780.7) Volume Invert Avail.Storage Storage Description #1 880.47' 0.031 of Custom Stage Data(Prismatic) Listed below(Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (acres) (acre-feet) (acre-feet) 880.47 0.001 0.000 0.000 882.00 0.040 0.031 0.031 Device Routing Invert Outlet Devices #1 Primary 880.47' 24.0"x 36.0" Horiz. Orifice/Grate C= 0.600 Limited to weir flow at low heads Primary OutFlow Max=4.01 cfs @ 11.94 hrs HW=880.72' TW=877.83' (Dynamic Tailwater) 1=Orifice/Grate (Weir Controls 4.01 cfs @ 1.62 fps) <2SID> 0 1 SW \I 2P Atik 3P N i A 1P 0'---------.--------------- 7 (Subca) Reach "on• Routing Diagram for PROPOSED DRAINAGE-OAK RIDGE MEMORY CARE 2-05-15 Prepared by{enter your company name here}, Printed 2/5/2015 HydroCAD®10.00-11 s/n 00744 ©2014 HydroCAD Software Solutions LLC PROPOSED DRAINAGE- OAK RIDGE MEMORY CARE 2-0 Type 11 24-hr 2YR Rainfall=2.75" Prepared by{enter your company name here} Printed 2/5/2015 HydroCAD®10.00-11 s/n 00744 ©2014 HydroCAD Software Solutions LLC Page 2 Time span=0.00-200.00 hrs, dt=0.01 hrs, 20001 points Runoff by SCS TR-20 method, UH=SCS, Weighted-CN Reach routing by Dyn-Stor-Ind method - Pond routing by Dyn-Stor-Ind method Subcatchment 1S: Runoff Area=0.540 ac 0.00% Impervious Runoff Depth=0.00" Flow Length=270' Slope=0.2700'/' Tc=6.4 min CN=39 Runoff=0.00 cfs 0.000 of Subcatchment 1SW: Runoff Area=4.490 ac 39.64% Impervious Runoff Depth=0.28" Flow Length=910' Slope=0.1350'/' Tc=13.5 min CN=61 Runoff=0.90 cfs 0.103 af Subcatchment 2S: Runoff Area=1.200 ac 50.83% Impervious Runoff Depth=0.54" Flow Length=440' Slope=0.0350'P Tc=12.1 min CN=69 Runoff=0.79 cfs 0.054 af Subcatchment 2S ID: Runoff Area=0.840 ac 100.00% Impervious Runoff Depth=2.52" Flow Length=440' Slope=0.0350'/' Tc=4.2 min CN=98 Runoff=3.44 cfs 0.176 af Pond 1P: Peak EIev=871.98' Storage=1,138 cf Inflow=2.95 cfs 0.218 af Outflow=1.48 cfs 0.218 af Pond 1SWP: Peak EIev=881.11' Storage=4 cf Inflow=0.90 cfs 0.103 af Primary=0.90 cfs 0.103 af Secondary=0.00 cfs 0.000 af Outflow=0.90 cfs 0.103 af Pond 2P: Peak EIev=880.37' Storage=0.001 af Inflow=3.82 cfs 0.230 af Outflow=3.82 cfs 0.230 af Pond 3P: Peak EIev=874.30' Storage=0.071 af Inflow=3.96 cfs 0.333 af Discarded=0.04 cfs 0.115 af Primary=2.95 cfs 0.218 af Outflow=2.99 cfs 0.333 af Total Runoff Area=7.070 ac Runoff Volume=0.333 af Average Runoff Depth=0.57" 54.31%Pervious=3.840 ac 45.69%Impervious=3.230 ac PROPOSED DRAINAGE- OAK RIDGE MEMORY CARE 2-0 Type II 24-hr 2YR Rainfall=2.75" Prepared by{enter your company name here} Printed 2/5/2015 HydroCAD®10.00-11 s/n 00744 ©2014 HydroCAD Software Solutions LLC Page 3 Summary for Subcatchment 1S: Runoff = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af, Depth= 0.00" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-200.00 hrs, dt= 0.01 hrs Type II 24-hr 2YR Rainfall=2.75" Area(ac) CN Description 0.540 39 >75%Grass cover, Good, HSG A 0.540 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.4 270 0.2700 0.70 Lag/CN Method, Summary for Subcatchment 1SW: Runoff = 0.90 cfs @ 12.11 hrs, Volume= 0.103 af, Depth= 0.28" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-200.00 hrs, dt= 0.01 hrs Type II 24-hr 2YR Rainfall=2.75" Area(ac) CN Description * 1.440 98 Paved parking, HSG A OFFSITE * 0.640 30 Woods, Good, HSG A OFFSITE * 1.110 39 >75%Grass cover, Good, HSG A OFFSITE 0.340 98 Paved parking, HSG A 0.220 30 Woods, Good, HSG A 0.740 39 >75%Grass cover, Good, HSG A 4.490 61 Weighted Average 2.710 60.36% Pervious Area 1.780 39.64% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 13.5 910 0.1350 1.12 Lag/CN Method, Summary for Subcatchment 2S: Runoff = 0.79 cfs @ 12.06 hrs, Volume= 0.054 af, Depth= 0.54" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-200.00 hrs, dt= 0.01 hrs Type II 24-hr 2YR Rainfall=2.75" PROPOSED DRAINAGE - OAK RIDGE MEMORY CARE 2-0 Type II 24-hr 2YR Rainfall=2.75" Prepared by {enter your company name here} Printed 2/5/2015 HydroCAD®10.00-11 s/n 00744 ©2014 HydroCAD Software Solutions LLC Page 4 Area(ac) CN Description 0.610 98 Paved parking, HSG A 0.050 30 Woods, Good, HSG A 0.540 39 >75%Grass cover, Good, HSG A 1.200 69 Weighted Average 0.590 49.17% Pervious Area 0.610 50.83% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 12.1 440 0.0350 0.61 Lag/CN Method, Summary for Subcatchment 2S ID: Runoff = 3.44 cfs @ 11.95 hrs, Volume= 0.176 af, Depth= 2.52" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span=0.00-200.00 hrs, dt=0.01 hrs Type II 24-hr 2YR Rainfall=2.75" Area(ac) CN Description 0.840 98 Paved parking, HSG A 0.840 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 4.2 440 0.0350 1.76 Lag/CN Method, Summary for Pond 1 P: Inflow Area= 7.070 ac, 45.69% Impervious, Inflow Depth = 0.37" for 2YR event Inflow = 2.95 cfs @ 12.03 hrs, Volume= 0.218 af Outflow = 1.48 cfs @ 12.27 hrs, Volume= 0.218 af, Atten= 50%, Lag= 13.8 min Primary = 1.48 cfs @ 12.27 hrs, Volume= 0.218 af Routing by Dyn-Stor-Ind method, Time Span=0.00-200.00 hrs, dt= 0.01 hrs Peak Elev=871.98'@ 12.27 hrs Surf.Area= 626 sf Storage= 1,138 cf Plug-Flow detention time=4.5 min calculated for 0.218 of (100%of inflow) Center-of-Mass det. time=4.2 min (878.4- 874.2) Volume Invert Avail.Storage Storage Description #1 866.30' 6,940 cf Custom Stage Data(Prismatic) Listed below(Recalc) PROPOSED DRAINAGE - OAK RIDGE MEMORY CARE 2-0 Type II 24-hr 2YR Rainfall=2.75" Prepared by{enter your company name here} Printed 2/5/2015 HydroCAD®10.00-11 s/n 00744 ©2014 HydroCAD Software Solutions LLC Page 5 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 866.30 12 0 0 866.50 15 3 3 868.00 55 53 55 870.00 205 260 315 872.00 630 835 1,150 874.00 1,245 1,875 3,025 876.00 2,670 3,915 6,940 Device Routing Invert Outlet Devices #1 Device 2 875.10' 60.0" Horiz.Orifice/Grate C= 0.600 Limited to weir flow at low heads #2 Primary 866.30' 12.0" Round Culvert L= 38.0' Ke= 0.500 Inlet/Outlet Invert= 866.30'/865.35' S= 0.0250'/' Cc= 0.900 n=0.013, Flow Area=0.79 sf #3 Device 2 866.30' 4.9"Vert. Orifice/Grate C=0.600 #4 Device 2 872.00' 6.5"Vert. Orifice/Grate C=0.600 #5 Device 2 875.10' 5.0' long Sharp-Crested Rectangular Weir 2 End Contraction(s) 0.5' Crest Height Primary OutFlow Max=1.48 cfs @ 12.27 hrs HW=871.98' (Free Discharge) L =Culvert (Passes 1.48 cfs of 8.61 cfs potential flow) 1=Orifice/Grate ( Controls 0.00 cfs) 3=Orifice/Grate (Orifice Controls 1.48 cfs @ 11.27 fps) =Orifice/Grate ( Controls 0.00 cfs) =Sharp-Crested Rectangular Weir ( Controls 0.00 cfs) Summary for Pond 1SWP: Inflow Area= 4.490 ac, 39.64% Impervious, Inflow Depth = 0.28" for 2YR event Inflow = 0.90 cfs @ 12.11 hrs, Volume= 0.103 of Outflow = 0.90 cfs @ 12.11 hrs, Volume= 0.103 af, Atten=0%, Lag=0.1 min Primary = 0.90 cfs @ 12.11 hrs, Volume= 0.103 of Secondary= 0.00 cfs @ 0.00 hrs, Volume= 0.000 of Routing by Dyn-Stor-Ind method, Time Span=0.00-200.00 hrs, dt= 0.01 hrs Peak Elev= 881.11'@ 12.11 hrs Surf.Area= 67 sf Storage=4 cf Plug-Flow detention time= 0.1 min calculated for 0.103 of (100%of inflow) Center-of-Mass det. time= 0.1 min (944.2- 944.2) Volume Invert Avail.Storage Storage Description #1 881.00' 3,687 cf Custom Stage Data(Prismatic) Listed below(Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 881.00 4 0 0 882.00 555 280 280 883.00 1,595 1,075 1,355 884.00 3,070 2,333 3,687 PROPOSED DRAINAGE - OAK RIDGE MEMORY CARE 2-0 Type 11 24-hr 2YR Rainfall=2.75" Prepared by {enter your company name here} Printed 2/5/2015 HydroCAD®10.00-11 s/n 00744 ©2014 HydroCAD Software Solutions LLC Page 6 Device Routing Invert Outlet Devices #1 Device 2 881.00' 27.0" Horiz.Orifice/Grate C= 0.600 Limited to weir flow at low heads #2 Primary 878.00' 12.0" Round Culvert L= 111.0' Ke= 0.500 Inlet/Outlet Invert=878.00'/876.89' S= 0.0100'/' Cc= 0.900 n= 0.013, Flow Area=0.79 sf #3 Secondary 883.75' 15.0' long x 2.0' breadth Broad-Crested Rectangular Weir Head (feet) 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 1.80 2.00 2.50 3.00 3.50 Coef. (English) 2.54 2.61 2.61 2.60 2.66 2.70 2.77 2.89 2.88 2.85 3.07 3.20 3.32 Primary OutFlow Max=0.90 cfs @ 12.11 hrs HW=881.11' TW=874.24' (Dynamic Tailwater) =Culvert (Passes 0.90 cfs of 5.07 cfs potential flow) 1=Orifice/Grate (Weir Controls 0.90 cfs @ 1.11 fps) Secondary OutFlow Max=0.00 cfs @ 0.00 hrs HW=881.00' TW=866.30' (Dynamic Tailwater) 3=Broad-Crested Rectangular Weir ( Controls 0.00 cfs) Summary for Pond 2P: Inflow Area= 2.040 ac, 71.08% Impervious, Inflow Depth = 1.36" for 2YR event Inflow = 3.82 cfs @ 11.95 hrs, Volume= 0.230 af Outflow = 3.82 cfs @ 11.96 hrs, Volume= 0.230 af, Atten= 0%, Lag=0.2 min Primary = 3.82 cfs @ 11.96 hrs, Volume= 0.230 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-200.00 hrs, dt= 0.01 hrs Peak Elev=880.37' @ 11.96 hrs Surf.Area=0.008 ac Storage= 0.001 af Plug-Flow detention time= 0.2 min calculated for 0.230 af (100%of inflow) Center-of-Mass det. time= 0.2 min (787.6 - 787.4) Volume Invert Avail.Storage Storage Description #1 880.13' 0.079 af Custom Stage Data(Prismatic) Listed below(Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (acres) (acre-feet) (acre-feet) 880.13 0.001 0.000 0.000 880.80 0.020 0.007 0.007 882.00 0.100 0.072 0.079 Device Routing Invert Outlet Devices #1 Primary 880.13' 24.0"x 36.0" Horiz. Orifice/Grate C=0.600 Limited to weir flow at low heads Primary OutFlow Max=3.81 cfs @ 11.96 hrs HW=880.37' TW=874.08' (Dynamic Tailwater) L1=Orifice/Grate (Weir Controls 3.81 cfs @ 1.60 fps) PROPOSED DRAINAGE - OAK RIDGE MEMORY CARE 2-0 Type II 24-hr 2YR Rainfall=2.75" Prepared by {enter your company name here} Printed 2/5/2015 HydroCAD®10.00-11 s/n 00744 ©2014 HydroCAD Software Solutions LLC Page 7 Summary for Pond 3P: Inflow Area= 6.530 ac, 49.46% Impervious, Inflow Depth = 0.61" for 2YR event Inflow = 3.96 cfs @ 11.96 hrs, Volume= 0.333 af Outflow = 2.99 cfs @ 12.03 hrs, Volume= 0.333 af, Atten=24%, Lag=4.3 min Discarded = 0.04 cfs @ 12.03 hrs, Volume= 0.115 af Primary = 2.95 cfs @ 12.03 hrs, Volume= 0.218 of Routing by Dyn-Stor-Ind method, Time Span=0.00-200.00 hrs, dt= 0.01 hrs Peak Elev=874.30' @ 12.03 hrs Surf.Area= 0.050 ac Storage=0.071 of Plug-Flow detention time= (not calculated: outflow precedes inflow) Center-of-Mass det. time= 187.6 min ( 1,023.5 - 836.0) Volume Invert Avail.Storage Storage Description #1 872.50' 0.057 of ADS N-12 48 @ 200.00' L Inside#2 Inside=47.7"W x 47.7"H => 12.40 sf x 200.00'L=2,480.0 cf Outside=54.0"W x 54.0"H => 14.85 sf x 200.00'L=2,969.8 cf #2 871.25' 0.108 af Custom Stage Data(Prismatic) Listed below(Recalc) 0.337 of Overall - 0.068 of Embedded = 0.269 af x 40.0%Voids 0.165 af Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (acres) (acre-feet) (acre-feet) 871.25 0.050 0.000 0.000 872.50 0.050 0.062 0.062 878.00 0.050 0.275 0.337 Device Routing Invert Outlet Devices #1 Primary 873.50' 18.0" Round Culvert L=30.0' Ke= 0.500 Inlet/Outlet Invert=873.50'/871.00' S= 0.0833 '/' Cc= 0.900 n=0.013, Flow Area= 1.77 sf #2 Discarded 871.25' 0.800 in/hr Exfiltration over Surface area above 871.24' Conductivity to Groundwater Elevation =0.00' Excluded Surface area= 0.000 ac Qiscarded OutFlow Max=0.04 cfs @ 12.03 hrs HW=874.30' (Free Discharge) 2=Exfiltration ( Controls 0.04 cfs) Primary OutFlow Max=2.94 cfs @ 12.03 hrs HW=874.30' TW=870.56' (Dynamic Tailwater) L1=Culvert (Inlet Controls 2.94 cfs @ 3.05 fps) PROPOSED DRAINAGE - OAK RIDGE MEMORY CARE 2- Type 1124-hr 10YR Rainfall=4.15" Prepared by{enter your company name here} Printed 2/5/2015 HydroCAD®10.00-11 s/n 00744 ©2014 HydroCAD Software Solutions LLC Page 8 Time span=0.00-200.00 hrs, dt=0.01 hrs, 20001 points Runoff by SCS TR-20 method, UH=SCS, Weighted-CN Reach routing by Dyn-Stor-Ind method - Pond routing by Dyn-Stor-Ind method Subcatchment 1S: Runoff Area=0.540 ac 0.00% Impervious Runoff Depth=0.06" Flow Length=270' Slope=0.2700'/' Tc=6.4 min CN=39 Runoff=0.00 cfs 0.003 of Subcatchment 1SW: Runoff Area=4.490 ac 39.64% Impervious Runoff Depth=0.89" Flow Length=910' Slope=0.1350 '/' Tc=13.5 min CN=61 Runoff=4.76 cfs 0.333 of Subcatchment 2S: Runoff Area=1.200 ac 50.83% Impervious Runoff Depth=1.37" Flow Length=440' Slope=0.0350 'P Tc=12.1 min CN=69 Runoff=2.28 cfs 0.137 af Subcatchment 2S ID: Runoff Area=0.840 ac 100.00% Impervious Runoff Depth=3.91" Flow Length=440' Slope=0.0350'1 Tc=4.2 min CN=98 Runoff=5.24 cfs 0.274 of Pond 1 P: Peak Elev=875.07' Storage=4,757 cf Inflow=8.38 cfs 0.624 af Outflow=3.70 cfs 0.624 of Pond 1SWP: Peak EIev=881.35' Storage=35 cf Inflow=4.76 cfs 0.333 of Primary=4.76 cfs 0.333 af Secondary=0.00 cfs 0.000 af Outflow=4.76 cfs 0.333 of Pond 2P: Peak Elev=880.48' Storage=0.002 of Inflow=6.69 cfs 0.411 of Outflow=6.68 cfs 0.411 of Pond 3P: Peak EIev=875.30' Storage=0.102 af Inflow=9.48 cfs 0.744 of Discarded=0.04 cfs 0.122 af Primary=8.38 cfs 0.621 of Outflow=8.42 cfs 0.744 of Total Runoff Area=7.070 ac Runoff Volume=0.746 of Average Runoff Depth= 1.27" 54.31%Pervious=3.840 ac 45.69%Impervious=3.230 ac PROPOSED DRAINAGE - OAK RIDGE MEMORY CARE 2- Type 1124-hr 10YR Rainfall=4.15" Prepared by {enter your company name here} Printed 2/5/2015 HydroCAD®10.00-11 s/n 00744 ©2014 HydroCAD Software Solutions LLC Page 9 Summary for Subcatchment 1S: Runoff = 0.00 cfs @ 15.38 hrs, Volume= 0.003 af, Depth= 0.06" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-200.00 hrs, dt= 0.01 hrs Type II 24-hr 10YR Rainfall=4.15" Area(ac) CN Description 0.540 39 >75%Grass cover, Good, HSG A 0.540 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.4 270 0.2700 0.70 Lag/CN Method, Summary for Subcatchment 1SW: Runoff = 4.76 cfs @ 12.07 hrs, Volume= 0.333 af, Depth= 0.89" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-200.00 hrs, dt= 0.01 hrs Type II 24-hr 10YR Rainfall=4.15" Area(ac) CN Description * 1.440 98 Paved parking, HSG A OFFSITE * 0.640 30 Woods, Good, HSG A OFFSITE * 1.110 39 >75%Grass cover, Good, HSG A OFFSITE 0.340 98 Paved parking, HSG A 0.220 30 Woods, Good, HSG A 0.740 39 >75%Grass cover, Good, HSG A 4.490 61 Weighted Average 2.710 60.36% Pervious Area 1.780 39.64% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 13.5 910 0.1350 1.12 Lag/CN Method, Summary for Subcatchment 2S: Runoff = 2.28 cfs @ 12.05 hrs, Volume= 0.137 af, Depth= 1.37" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-200.00 hrs, dt= 0.01 hrs Type II 24-hr 10YR Rainfall=4.15" PROPOSED DRAINAGE - OAK RIDGE MEMORY CARE 2- Type 1124-hr 10YR Rainfall=4.15" Prepared by {enter your company name here} Printed 2/5/2015 HydroCAD®10.00-11 s/n 00744 ©2014 HydroCAD Software Solutions LLC Page 10 Area(ac) CN Description 0.610 98 Paved parking, HSG A 0.050 30 Woods, Good, HSG A 0.540 39 >75%Grass cover, Good, HSG A 1.200 69 Weighted Average 0.590 49.17% Pervious Area 0.610 50.83% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 12.1 440 0.0350 0.61 Lag/CN Method, Summary for Subcatchment 2S ID: Runoff = 5.24 cfs @ 11.95 hrs, Volume= 0.274 af, Depth= 3.91" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-200.00 hrs, dt= 0.01 hrs Type II 24-hr 10YR Rainfall=4.15" Area(ac) CN Description 0.840 98 Paved parking, HSG A 0.840 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 4.2 440 0.0350 1.76 Lag/CN Method, Summary for Pond 1 P: Inflow Area= 7.070 ac, 45.69% Impervious, Inflow Depth = 1.06" for 10YR event Inflow = 8.38 cfs @ 12.06 hrs, Volume= 0.624 of Outflow = 3.70 cfs @ 12.26 hrs, Volume= 0.624 af, Atten=56%, Lag= 11.5 min Primary = 3.70 cfs @ 12.26 hrs, Volume= 0.624 of Routing by Dyn-Stor-Ind method, Time Span= 0.00-200.00 hrs, dt= 0.01 hrs Peak Elev=875.07'@ 12.26 hrs Surf.Area=2,005 sf Storage=4,757 cf Plug-Flow detention time=9.8 min calculated for 0.624 of (100%of inflow) Center-of-Mass det. time=9.8 min (871.4- 861.7) Volume Invert Avail.Storage Storage Description #1 866.30' 6,940 cf Custom Stage Data(Prismatic) Listed below(Recalc) PROPOSED DRAINAGE - OAK RIDGE MEMORY CARE 2- Type 1124-hr 10YR Rainfall=4.15" Prepared by{enter your company name here} Printed 2/5/2015 HydroCAD®10.00-11 s/n 00744 ©2014 HydroCAD Software Solutions LLC Page 11 1 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 866.30 12 0 0 866.50 15 3 3 868.00 55 53 55 870.00 205 260 315 872.00 630 835 1,150 874.00 1,245 1,875 3,025 876.00 2,670 3,915 6,940 Device Routing Invert Outlet Devices #1 Device 2 875.10' 60.0" Horiz.Orifice/Grate C= 0.600 Limited to weir flow at low heads #2 Primary 866.30' 12.0" Round Culvert L=38.0' Ke=0.500 Inlet/Outlet Invert=866.30'/865.35' S=0.0250'/' Cc= 0.900 n= 0.013, Flow Area= 0.79 sf #3 Device 2 866.30' 4.9"Vert.Orifice/Grate C= 0.600 #4 Device 2 872.00' 6.5"Vert.Orifice/Grate C= 0.600 #5 Device 2 875.10' 5.0' long Sharp-Crested Rectangular Weir 2 End Contraction(s) 0.5' Crest Height Primary OutFlow Max=3.70 cfs @ 12.26 hrs HW=875.07' (Free Discharge) L =Culvert (Passes 3.70 cfs of 10.87 cfs potential flow) 1=Orifice/Grate ( Controls 0.00 cfs) 3=Orifice/Grate (Orifice Controls 1.84 cfs @ 14.09 fps) =Orifice/Grate (Orifice Controls 1.85 cfs @ 8.05 fps) 5=Sharp-Crested Rectangular Weir ( Controls 0.00 cfs) Summary for Pond 1 SWP: Inflow Area= 4.490 ac, 39.64% Impervious, Inflow Depth = 0.89" for 10YR event Inflow = 4.76 cfs @ 12.07 hrs, Volume= 0.333 af Outflow = 4.76 cfs @ 12.08 hrs, Volume= 0.333 af, Atten= 0%, Lag=0.2 min Primary = 4.76 cfs @ 12.08 hrs, Volume= 0.333 of Secondary= 0.00 cfs @ 0.00 hrs, Volume= 0.000 of Routing by Dyn-Stor-Ind method, Time Span= 0.00-200.00 hrs, dt=0.01 hrs Peak Elev=881.35' @ 12.08 hrs Surf.Area= 196 sf Storage=35 cf Plug-Flow detention time= 0.1 min calculated for 0.333 of (100%of inflow) Center-of-Mass det. time= 0.1 min (891.4- 891.3) Volume Invert Avail.Storage Storage Description #1 881.00' 3,687 cf Custom Stage Data(Prismatic) Listed below(Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 881.00 4 0 0 882.00 555 280 280 883.00 1,595 1,075 1,355 884.00 3,070 2,333 3,687 PROPOSED DRAINAGE - OAK RIDGE MEMORY CARE 2- Type 1124-hr 10YR Rainfall=4.15" Prepared by{enter your company name here} Printed 2/5/2015 HydroCAD®10.00-11 s/n 00744 ©2014 HydroCAD Software Solutions LLC Page 12 Device Routing Invert Outlet Devices #1 Device 2 881.00' 27.0" Horiz. Orifice/Grate C= 0.600 Limited to weir flow at low heads #2 Primary 878.00' 12.0" Round Culvert L= 111.0' Ke= 0.500 Inlet/Outlet Invert= 878.00'/876.89' S= 0.0100 '1 Cc=0.900 n= 0.013, Flow Area=0.79 sf #3 Secondary 883.75' 15.0' long x 2.0' breadth Broad-Crested Rectangular Weir Head (feet) 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 1.80 2.00 2.50 3.00 3.50 Coef. (English) 2.54 2.61 2.61 2.60 2.66 2.70 2.77 2.89 2.88 2.85 3.07 3.20 3.32 Primary OutFlow Max=4.75 cfs @ 12.08 hrs HW=881.35' TW=875.22' (Dynamic Tailwater) =Culvert (Passes 4.75 cfs of 5.25 cfs potential flow) 1=Orifice/Grate (Weir Controls 4.75 cfs @ 1.93 fps) Secondary OutFlow Max=0.00 cfs @ 0.00 hrs HW=881.00' TW=866.30' (Dynamic Tailwater) 3=Broad-Crested Rectangular Weir ( Controls 0.00 cfs) Summary for Pond 2P: Inflow Area= 2.040 ac, 71.08% Impervious, Inflow Depth = 2.41" for 10YR event Inflow = 6.69 cfs @ 11.96 hrs, Volume= 0.411 af Outflow = 6.68 cfs @ 11.96 hrs, Volume= 0.411 af, Atten=0%, Lag=0.3 min Primary = 6.68 cfs @ 11.96 hrs, Volume= 0.411 af Routing by Dyn-Stor-Ind method, Time Span=0.00-200.00 hrs, dt= 0.01 hrs Peak Elev=880.48' @ 11.96 hrs Surf.Area= 0.011 ac Storage=0.002 af Plug-Flow detention time= 0.2 min calculated for 0.411 af (100%of inflow) Center-of-Mass det. time= 0.2 min ( 785.0- 784.8) Volume Invert Avail.Storage Storage Description #1 880.13' 0.079 af Custom Stage Data(Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (acres) (acre-feet) (acre-feet) 880.13 0.001 0.000 0.000 880.80 0.020 0.007 0.007 882.00 0.100 0.072 0.079 Device Routing Invert Outlet Devices #1 Primary 880.13' 24.0"x 36.0" Horiz.Orifice/Grate C= 0.600 Limited to weir flow at low heads Primary OutFlow Max=6.67 cfs @ 11.96 hrs HW=880.48' TW=874.87' (Dynamic Tailwater) t1=Orifice/Grate (Weir Controls 6.67 cfs @ 1.92 fps) PROPOSED DRAINAGE - OAK RIDGE MEMORY CARE 2- Type 1124-hr 10YR Rainfall=4.15" Prepared by{enter your company name here} Printed 2/5/2015 HydroCAD®10.00-11 s/n 00744 ©2014 HydroCAD Software Solutions LLC Page 13 Summary for Pond 3P: Inflow Area= 6.530 ac, 49.46% Impervious, Inflow Depth = 1.37" for 10YR event Inflow = 9.48 cfs @ 12.00 hrs, Volume= 0.744 of Outflow = 8.42 cfs @ 12.06 hrs, Volume= 0.744 af, Atten= 11%, Lag=4.0 min Discarded = 0.04 cfs @ 12.18 hrs, Volume= 0.122 of Primary = 8.38 cfs @ 12.06 hrs, Volume= 0.621 of Routing by Dyn-Stor-Ind method, Time Span= 0.00-200.00 hrs, dt= 0.01 hrs Peak Elev= 875.30'@ 12.18 hrs Surf.Area= 0.050 ac Storage= 0.102 of Plug-Flow detention time= (not calculated: outflow precedes inflow) Center-of-Mass det. time= 93.3 min (925.9 - 832.6) Volume Invert Avail.Storage Storage Description #1 872.50' 0.057 of ADS N-12 48 @ 200.00' L Inside#2 Inside=47.7"W x 47.7"H => 12.40 sf x 200.00'L=2,480.0 cf Outside= 54.0"W x 54.0"H => 14.85 sf x 200.00'L= 2,969.8 cf #2 871.25' 0.108 of Custom Stage Data(Prismatic) Listed below(Recalc) 0.337 of Overall - 0.068 of Embedded=0.269 of x 40.0%Voids 0.165 of Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (acres) (acre-feet) (acre-feet) 871.25 0.050 0.000 0.000 872.50 0.050 0.062 0.062 878.00 0.050 0.275 0.337 Device Routing Invert Outlet Devices #1 Primary 873.50' 18.0" Round Culvert L=30.0' Ke= 0.500 Inlet/Outlet Invert=873.50'/871.00' S= 0.0833 '/' Cc= 0.900 n= 0.013, Flow Area= 1.77 sf #2 Discarded 871.25' 0.800 in/hr Exfiltration over Surface area above 871.24' Conductivity to Groundwater Elevation = 0.00' Excluded Surface area=0.000 ac piscarded OutFlow Max=0.04 cfs @ 12.18 hrs HW=875.30' (Free Discharge) 2=Exfiltration ( Controls 0.04 cfs) Primary OutFlow Max=8.38 cfs @ 12.06 hrs HW=875.22' TW=874.23' (Dynamic Tailwater) L1=Culvert (Inlet Controls 8.38 cfs @ 4.74 fps) PROPOSED DRAINAGE - OAK RIDGE MEMORY CARE 2 Type 1124-hr 100YR Rainfall=5.90" Prepared by{enter your company name here} Printed 2/5/2015 HydroCAD®10.00-11 s/n 00744 ©2014 HydroCAD Software Solutions LLC Page 14 Time span=0.00-200.00 hrs, dt=0.01 hrs, 20001 points Runoff by SCS TR-20 method, UH=SCS, Weighted-CN Reach routing by Dyn-Stor-Ind method - Pond routing by Dyn-Stor-Ind method Subcatchment 1S: Runoff Area=0.540 ac 0.00% Impervious Runoff Depth=0.42" Flow Length=270' Slope=0.2700'/' Tc=6.4 min CN=39 Runoff=0.16 cfs 0.019 af Subcatchment 1SW: Runoff Area=4.490 ac 39.64% Impervious Runoff Depth=1.94" Flow Length=910' Slope=0.1350'/' Tc=13.5 min CN=61 Runoff=11.48 cfs 0.725 of Subcatchment 2S: Runoff Area=1.200 ac 50.83% Impervious Runoff Depth=2.63" Flow Length=440' Slope=0.0350'/' Tc=12.1 min CN=69 Runoff=4.51 cfs 0.263 of Subcatchment 2S ID: Runoff Area=0.840 ac 100.00% Impervious Runoff Depth=5.66" Flow Length=440' Slope=0.0350'/' Tc=4.2 min CN=98 Runoff=7.48 cfs 0.396 af Pond 1 P: Peak EIev=875.51' Storage=5,728 cf Inflow=12.35 cfs 1.278 af Outflow=11.16 cfs 1.278 af Pond 1SWP: Peak Elev=883.70' Storage=2,841 cf Inflow=11.48 cfs 0.725 af Primary=6.81 cfs 0.725 af Secondary=0.00 cfs 0.000 af Outflow=6.81 cfs 0.725 af Pond 2P: Peak Elev=880.60' Storage=0.004 af Inflow=10.62 cfs 0.660 of Outflow=10.60 cfs 0.660 of Pond 3P: Peak Elev=877.45' Storage=0.154 af Inflow=16.21 cfs 1.385 of Discarded=0.04 cfs 0.126 af Primary=12.22 cfs 1.259 af Outflow=12.26 cfs 1.385 of Total Runoff Area=7.070 ac Runoff Volume= 1.404 of Average Runoff Depth=2.38" 54.31%Pervious=3.840 ac 45.69%Impervious=3.230 ac PROPOSED DRAINAGE - OAK RIDGE MEMORY CARE 2 Type 1124-hr 100YR Rainfall=5.90" Prepared by{enter your company name here} Printed 2/5/2015 HydroCAD®10.00-11 s/n 00744 ©2014 HydroCAD Software Solutions LLC Page 15 Summary for Subcatchment 1S: Runoff = 0.16 cfs @ 12.03 hrs, Volume= 0.019 af, Depth= 0.42" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span=0.00-200.00 hrs, dt= 0.01 hrs Type II 24-hr 100YR Rainfall=5.90" Area (ac) CN Description 0.540 39 >75%Grass cover, Good, HSG A 0.540 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.4 270 0.2700 0.70 Lag/CN Method, Summary for Subcatchment 1SW: Runoff = 11.48 cfs @ 12.06 hrs, Volume= 0.725 af, Depth= 1.94" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-200.00 hrs, dt=0.01 hrs Type II 24-hr 100YR Rainfall=5.90" Area (ac) CN Description * 1.440 98 Paved parking, HSG A OFFSITE * 0.640 30 Woods, Good, HSG A OFFSITE * 1.110 39 >75%Grass cover, Good, HSG A OFFSITE 0.340 98 Paved parking, HSG A 0.220 30 Woods, Good, HSG A 0.740 39 >75%Grass cover, Good, HSG A 4.490 61 Weighted Average 2.710 60.36% Pervious Area 1.780 39.64% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 13.5 910 0.1350 1.12 Lag/CN Method, Summary for Subcatchment 2S: Runoff = 4.51 cfs @ 12.04 hrs, Volume= 0.263 af, Depth= 2.63" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span=0.00-200.00 hrs, dt= 0.01 hrs Type II 24-hr 100YR Rainfall=5.90" PROPOSED DRAINAGE - OAK RIDGE MEMORY CARE 2 Type II 24-hr 100YR Rainfall=5.90" Prepared by{enter your company name here} Printed 2/5/2015 HydroCAD®10.00-11 s/n 00744 ©2014 HydroCAD Software Solutions LLC Page 16 Area(ac) CN Description 0.610 98 Paved parking, HSG A 0.050 30 Woods, Good, HSG A 0.540 39 >75%Grass cover, Good, HSG A 1.200 69 Weighted Average 0.590 49.17% Pervious Area 0.610 50.83% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 12.1 440 0.0350 0.61 Lag/CN Method, Summary for Subcatchment 2S ID: Runoff = 7.48 cfs @ 11.95 hrs, Volume= 0.396 af, Depth= 5.66" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-200.00 hrs, dt=0.01 hrs Type II 24-hr 100YR Rainfall=5.90" Area(ac) CN Description 0.840 98 Paved parking, HSG A 0.840 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 4.2 440 0.0350 1.76 Lag/CN Method, Summary for Pond 1 P: Inflow Area= 7.070 ac, 45.69% Impervious, Inflow Depth = 2.17" for 100YR event Inflow = 12.35 cfs @ 12.07 hrs, Volume= 1.278 af Outflow = 11.16 cfs @ 12.17 hrs, Volume= 1.278 af, Atten= 10%, Lag=6.4 min Primary = 11.16 cfs @ 12.17 hrs, Volume= 1.278 af Routing by Dyn-Stor-Ind method, Time Span=0.00-200.00 hrs, dt= 0.01 hrs Peak Elev=875.51'© 12.17 hrs Surf.Area=2,324 sf Storage=5,728 cf Plug-Flow detention time=8.6 min calculated for 1.278 af (100%of inflow) Center-of-Mass det. time=8.6 min (858.5- 849.9) Volume Invert Avail.Storage Storage Description #1 866.30' 6,940 cf Custom Stage Data(Prismatic) Listed below(Recalc) PROPOSED DRAINAGE- OAK RIDGE MEMORY CARE 2 Type 1124-hr 100YR Rainfall=5.90" Prepared by (enter your company name here} Printed 2/5/2015 HydroCAD®10.00-11 s/n 00744 ©2014 HydroCAD Software Solutions LLC Page 17 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 866.30 12 0 0 866.50 15 3 3 868.00 55 53 55 870.00 205 260 315 872.00 630 835 1,150 874.00 1,245 1,875 3,025 876.00 2,670 3,915 6,940 Device Routing Invert Outlet Devices #1 Device 2 875.10' 60.0" Horiz.Orifice/Grate C= 0.600 Limited to weir flow at low heads #2 Primary 866.30' 12.0" Round Culvert L=38.0' Ke= 0.500 Inlet/Outlet Invert= 866.30'/865.35' S=0.0250'/' Cc= 0.900 n= 0.013, Flow Area= 0.79 sf #3 Device 2 866.30' 4.9"Vert. Orifice/Grate C= 0.600 #4 Device 2 872.00' 6.5"Vert.Orifice/Grate C= 0.600 #5 Device 2 875.10' 5.0' long Sharp-Crested Rectangular Weir 2 End Contraction(s) 0.5' Crest Height Primary OutFlow Max=11.16 cfs @ 12.17 hrs HW=875.51' (Free Discharge) P _Culvert (Inlet Controls 11.16 cfs @ 14.21 fps) 1=Orifice/Grate (Passes < 13.69 cfs potential flow) 3=Orifice/Grate (Passes < 1.89 cfs potential flow) =Orifice/Grate (Passes < 2.00 cfs potential flow) 5=Sharp-Crested Rectangular Weir (Passes <4.72 cfs potential flow) Summary for Pond 1 SWP: Inflow Area= 4.490 ac, 39.64% Impervious, Inflow Depth = 1.94" for 100YR event Inflow = 11.48 cfs @ 12.06 hrs, Volume= 0.725 af Outflow = 6.81 cfs @ 12.19 hrs, Volume= 0.725 af, Atten=41%, Lag=7.3 min Primary = 6.81 cfs @ 12.19 hrs, Volume= 0.725 of Secondary= 0.00 cfs @ 0.00 hrs, Volume= 0.000 of Routing by Dyn-Stor-Ind method, Time Span= 0.00-200.00 hrs, dt= 0.01 hrs Peak Elev=883.70'@ 12.19 hrs Surf.Area=2,632 sf Storage= 2,841 cf Plug-Flow detention time= (not calculated: outflow precedes inflow) Center-of-Mass det. time= 1.7 min ( 866.5- 864.9) Volume Invert Avail.Storage Storage Description #1 881.00' 3,687 cf Custom Stage Data(Prismatic) Listed below(Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 881.00 4 0 0 882.00 555 280 280 883.00 1,595 1,075 1,355 884.00 3,070 2,333 3,687 PROPOSED DRAINAGE - OAK RIDGE MEMORY CARE 2 Type 1124-hr 100YR Rainfall=5.90" Prepared by{enter your company name here) Printed 2/5/2015 HydroCAD®10.00-11 s/n 00744 ©2014 HydroCAD Software Solutions LLC Page 18 Device Routing Invert Outlet Devices #1 Device 2 881.00' 27.0" Horiz. Orifice/Grate C= 0.600 Limited to weir flow at low heads #2 Primary 878.00' 12.0" Round Culvert L= 111.0' Ke=0.500 Inlet/Outlet Invert= 878.00'/876.89' S= 0.0100'1 Cc= 0.900 n= 0.013, Flow Area= 0.79 sf #3 Secondary 883.75' 15.0' long x 2.0'breadth Broad-Crested Rectangular Weir Head (feet) 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 1.80 2.00 2.50 3.00 3.50 Coef. (English) 2.54 2.61 2.61 2.60 2.66 2.70 2.77 2.89 2.88 2.85 3.07 3.20 3.32 Primary OutFlow Max=6.81 cfs @ 12.19 hrs HW=883.70' TW=877.16' (Dynamic Tailwater) LCulvert (Barrel Controls 6.81 cfs @ 8.67 fps) 1=Orifice/Grate (Passes 6.81 cfs of 31.47 cfs potential flow) Secondary OutFlow Max=0.00 cfs @ 0.00 hrs HW=881.00' TW=866.30' (Dynamic Tailwater) 3=Broad-Crested Rectangular Weir ( Controls 0.00 cfs) Summary for Pond 2P: Inflow Area= 2.040 ac, 71.08% Impervious, Inflow Depth = 3.88" for 100YR event Inflow = 10.62 cfs @ 11.96 hrs, Volume= 0.660 af Outflow = 10.60 cfs @ 11.97 hrs, Volume= 0.660 af, Atten= 0%, Lag= 0.3 min Primary = 10.60 cfs @ 11.97 hrs, Volume= 0.660 af Routing by Dyn-Stor-Ind method, Time Span=0.00-200.00 hrs, dt= 0.01 hrs Peak Elev= 880.60'@ 11.97 hrs Surf.Area= 0.014 ac Storage=0.004 af Plug-Flow detention time= 0.2 min calculated for 0.660 af (100%of inflow) Center-of-Mass det. time= 0.2 min ( 781.4- 781.2) Volume Invert Avail.Storage Storage Description #1 880.13' 0.079 af Custom Stage Data(Prismatic) Listed below(Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (acres) (acre-feet) (acre-feet) 880.13 0.001 0.000 0.000 880.80 0.020 0.007 0.007 882.00 0.100 0.072 0.079 Device Routing Invert Outlet Devices #1 Primary 880.13' 24.0"x 36.0" Horiz.Orifice/Grate C= 0.600 Limited to weir flow at low heads Primary OutFlow Max=10.58 cfs @ 11.97 hrs HW=880.60' TW=876.10' (Dynamic Tailwater) L1=Orifice/Grate (Weir Controls 10.58 cfs @ 2.24 fps) PROPOSED DRAINAGE - OAK RIDGE MEMORY CARE 2 Type 1124-hr 100YR Rainfall=5.90" Prepared by {enter your company name here} Printed 2/5/2015 HydroCADO 10.00-11 s/n 00744 ©2014 HydroCAD Software Solutions LLC Page 19 Summary for Pond 3P: Inflow Area= 6.530 ac, 49.46% Impervious, Inflow Depth = 2.55" for 100YR event Inflow = 16.21 cfs @ 11.97 hrs, Volume= 1.385 of Outflow = 12.26 cfs @ 12.07 hrs, Volume= 1.385 af, Atten=24%, Lag=5.8 min Discarded = 0.04 cfs @ 12.09 hrs, Volume= 0.126 af Primary = 12.22 cfs @ 12.07 hrs, Volume= 1.259 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-200.00 hrs, dt= 0.01 hrs Peak Elev=877.45'@ 12.09 hrs Surf.Area= 0.050 ac Storage= 0.154 of Plug-Flow detention time= (not calculated: outflow precedes inflow) Center-of-Mass det. time=57.0 min ( 882.9 - 826.0) Volume Invert Avail.Storage Storage Description #1 872.50' 0.057 of ADS N-12 48 @ 200.00' L Inside#2 Inside=47.7"W x 47.7"H => 12.40 sf x 200.00'L=2,480.0 cf Outside=54.0"W x 54.0"H => 14.85 sf x 200.00'L=2,969.8 cf #2 871.25' 0.108 of Custom Stage Data(Prismatic) Listed below (Recalc) 0.337 of Overall - 0.068 af Embedded=0.269 of x 40.0%Voids 0.165 of Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (acres) (acre-feet) (acre-feet) 871.25 0.050 0.000 0.000 872.50 0.050 0.062 0.062 878.00 0.050 0.275 0.337 Device Routing Invert Outlet Devices #1 Primary 873.50' 18.0" Round Culvert L= 30.0' Ke= 0.500 Inlet/Outlet Invert=873.50'/871.00' S= 0.0833 '/' Cc= 0.900 n= 0.013, Flow Area= 1.77 sf #2 Discarded 871.25' 0.800 in/hr Exfiltration over Surface area above 871.24' Conductivity to Groundwater Elevation = 0.00' Excluded Surface area= 0.000 ac piscarded OutFlow Max=0.04 cfs @ 12.09 hrs HW=877.45' (Free Discharge) 2=Exfiltration ( Controls 0.04 cfs) Primary OutFlow Max=12.16 cfs @ 12.07 hrs HW=877.44' TW=875.39' (Dynamic Tailwater) L1=Culvert (Inlet Controls 12.16 cfs @ 6.88 fps) YIIII�.4. MIDDLE ST. CROIX WATERSHED MANAGEMENT ORGANIZATION 415#0, 4 5 5 H A Y W A R D A V E N U E O A K D A L E , M I N N E S T O A 5 5 1 2 8 P h o n e 651 . 3 3 0 . 8 2 2 0 x22 f a x 6 5 1 . 3 3 0 . 7 7 4 7 w w w . m s c w m o . o r g November 14,2014 MSCW Eric Johnson,Administrator City of Oak Park Heights 14168 Oak Park Blvd.N. Park Heights,MN 55082s. RE: Oak Ridge Memory Care Addition Dear Mr.Johnson, The Middle St. Croix Watershed Management Organization (MSCWMO) received required submittal items on October 24, 2014 for the proposed Oak Ridge Memory Care Addition, located within MSCWMO boundaries and in the City of Oak Park Heights.The proposed project qualifies for full review under the MSCWMO 2006 Watershed Management Plan (WMP). The project, as submitted, does not meet the Policies and Performance Standards contained within Section 5.0 of the MSCWMO WMP. The MSCWMO Board did not approve the project at their regular board meeting on November 13, 2014. The following conditions must be met before the project can be reviewed for compliance with MSCWMO performance standards: Drainage Easement Compensatory Storage • Demonstrate compensatory storage of.985 acre feet for the prosed filling in the drainage easement.The plan proposes to fill the existing drainage easement that provides 1.46 acre feet of surge storage. The proposed plan fills 0 .985 ac-ft.of surge storage. Compensatory storage of.985 ac-ft.must be demonstrated. Permits • Submit permission to construct on MnDOT property. Surface stormwater conveyance is proposed to be diverted onto MnDOT right of way. Grading and utility work on MnDOT right of way is proposed to meet minimum rate control standards. Dry Detention Pond • Add the weir wall in outlet structure 1 to the HydroCad calculations. • Identify and document the emergency over flow of dry detention basin 1P. • Add a floating debris filter to the outlet of dry detention basin 1P. Underground Infiltration Basin • Provide soil borings,boring logs to verify soil conditions at underground system location. The infiltration system is located in primarily fill soils.The bottom of the proposed underground system is at 871.5. 1985 pre development contours indicate a native soil elevation of 872. • Provide a minimum of 202 cubic feet of retention storage to meet the minimum volume control requirement. • Add an inspection well to the underground infiltration system. Inspections and Maintenance • Provide an inspection and maintenance agreement for the underground infiltration system and dry detention basin 1P. Middle St. Croix Watershed Management Organization Member Communities Afton, Bayport, Baytown, Lakeland, Lakeland Shores, Lake St. Croix Beach, Oak Park Heights, St. Mary's Point, Stillwater, Et West Lakeland October 30,2014 Page 2 of 2 The enclosed checklists contain detailed information on project review qualification and the policies and performance standards of the WMP. MSCWMO review process information can be downloaded from www.mscwmo.org. Feel free to contact me at 651-330-8220 x22 or misensee @mnwcd.org if you have any questions regarding these comments. Sincerely, Mikael Isensee Administrator Middle St. Croix Watershed Management Organization Cc: Chuck Dougherty,MSCWMO Board Manager Kurt Quaintance,P.E.,James R.Hill Inc.,2500 W.County Road 42, Suite 120,Burnsville,MN 55337 Enclosures II Middle St. Croix Watershed Management Organization MEMBER COMMUNITIES: Afton,Bayport,Baytown Township,Lakeland,Lakeland Shores,Lake St.Croix Beach,Oak Park Heights,St.Mary's Point,Stillwater and West Lakeland Township