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HomeMy WebLinkAbout03-11-2004 Planning Commission Meeting Packet ®r , ,r Cn Y OF OAK PARK HEIGHTS PLANNING COMMISSION MEETING AGENDA Thursday, March 11, 2004 - 7:00 PM Es ated Times 7:00 I. Call to Order: H. Approval of A III. Approve Minutes: A. February 12, 2004 (1) IV. Department / Commission Liaison / Other Reports: A. 'Commission Liaison: B. Hwy. 36 Subcommittee: C. Other: 7:15 V. Visitors /Public Comment: This is an opportunity for the public to address the Commission with questions or concerns regarding items not on the agenda. Please limit comments to three minuteS. VI. Public Hearings: A. East Oaks P.U.D. 2nd Addition: To consider requests for subdivision and planned unit development: concept plan to allow construction of two office buildings and one residential condominiums building, located south of 60" St. and East of Osgood Ave. N. (2) VII. New Business: VIII. Old Business: IX. Informational: A. Next Meeting: April. 8, 2004 — Regular Meeting @ 7:00 p.m. B. Council Representative: March — Vice Chair Runk April — Commissioner Oswald Adjournment r ENCLOSURE CITY OF OAK PARK HEIGHTS PLANNING COMMISSION MEETING MINUTES Thursday, February 12, 2004 Call To Order: Chair Dwyer called the meeting to order at 7:00 p.m. Present: Vice Chair Runk, Commissioners Liljegren, Oswald and Powell.. City Administrator Johnson, City Planner Richards and Commission Liaison McComber. Approval of Agenda: Commissioner Runk, seconded by Commissioner Powell, moved to approve the Agenda presented. Carried 5 -0. kt)prove Minutes: Chair Dwyer, seconded by Commissioner Lilj egren, moved to approve the Minutes of January 8, 2004 as amended, correcting typographical errors. Carried 5 -0. Department /Commission Liaison Reports /Other Reports: A. Commission Liaison: None. B. Hwv. 36 Subcommittee: Commission Liaison McComber reported that there is not yet a date set for a Hwy. 36 TAG meeting. McComber also reported that the next meeting of the stakeholders for the St. Croix River crossing is to be held February 24t from 9 a.m. to 4:30 p.m. at Stillwater City Hall. C. Other: None. Visitors /Public Comment: There were no visitors to the meeting other than those present for items upon the published Agenda. Public Hearing: A. S &C Bank: To consider requests for minor subdivision and planned unit development amendment to permit division of existing building located at 5795 Morning Dove Ave. N., into two privately owned office condominiums. (2) City Planner Richards reviewed the February 5, 2004 planning report, provided an issue analysis and recommended conditions for approval, should the Commission wish to recommend approval of the request. Chair Dwyer opened the hearing for comment. There being no visitors to the public hearing, Commissioner Liljegren, seconded by Commissioner Oswald, moved to close the public hearing. Carried 5 -0. Commission discussion ensued as to signage allowance at the site. Vice Chair Runk, seconded by Commissioner Oswald, moved to recommend that the City Council approved the request, subject to the following conditions: 1. The applicant produce either a title opinion or a title commitment or other verification of the status of current title, depicting current fee owner and outstanding liens and encumbrances against the building property subject to review and approval of the City Attorney. w t P Commission Minutes February 12, 2004 Page 2of4 2. The applicant supply mylars relative to the Common Interest Community #235 that they wish to create, with appropriate places for signatures of current owner and encumbering interest against the property, in addition to the other statutory executions that need to be on that plat. The plat shall be subject to review and approval of the City Administrator City Attorney. 3. The applicant has informed us that, notwithstanding the condo ation of the building, they do not intend to have separate utilities to Unit 101, which is being created by the condominium and minor subdivision application. Thus, a condition of the application will have to be that the fee owner of Unit 100 and their successors, heirs and assigns will be directly responsible to the City of Oak Park Heights for payment of all outstanding utilities relative to the property, it being understood that the City will not have to create a separate billing entity or item for Unit 101, within its database, for utility billings. 4. The applicant shall provide a completed, fully executed copy of a Common Interest Community ##235 declaration, in substantially the same form as provided to the City, as part of the final permitting, subject to approval of the City Attorney. That document will also have to be amended to reflect that all utility billings for the City of Oak Park Heights will be billed directly to Unit 100, who will then prorate or collect from Unit 101, its fair share of such billings. Not withstanding that process, Unit 100 will be solely and exclusively responsible to the City of Oak Park Heights for payment of all municipal utility billings incurred on the premises. 5. An y changes to the signage shall require submittal of a sign permit, subject to review and approval of the Building Official. 6. The landscaping shall be inspected by the City Arborist in June of 2004. Any trees or shrubs that are dead or diseased, as determined by the City Arborist, shall be replaced by the applicant with similar, healthy plant materials subject to review and approval of the City Arborist. Carried 5 -0. B. Oakgreen Village South - Concept: To consider requests for conditional use permit, site plan review, comprehensive plan amendment, zoning district amendment and planned unit development: concept plan for construction of 37 two -story townhomes, to the South of 58th St. and west of Oakgreen Ave. (3) City Planner Richard reviewed the February 5, 2004 planning report, provided an issue analysis and recommended conditions should the Commission wish to recommend approval of the request. Chair Dwyer opened the hearing for comment. Ken Hooge, Valley Senior Services Alliance (VSSA) discussed the 2000 Development Agreement provision for City option to purchase 150 linear land parcel. He stated that VSSA is willing to fulfill P their obligation per that Agreement. Planning Commission Minutes February 12, 2004 Page 3 of 4 David Benson, 5668 Novak Ave. N., expressed his concern about the change to the community and the possibility of some of the townhomes becoming Section 8. He does not wish to seen green area Wished and asked the Commission to remember that the area is not so much about how much can be built but rather about community and the families that are living there. Greg Reynolds. 14229 St Croix Trail, N. stated that Stillwater is a beautiful area and his belief that much of the reason people love and come to the area is because of its parks and green areas. He would like to see green space remain. Chris Diederich, 13910 56th St. N., stated that he had understood the 150' land setback to be a given and added that he would like to see it remain a green space. Eric Roeske, 5672 Novak Ave. N., expressed concern about tree retention and the market value of the townhomes impact upon the existing home market values. He would like to see green space protected and the city refrain from moving toward high- density living. Tom Houle. 5676 Novak Ave. N.,, stated that a 150' green space was provided for the west side of the River Hills neighborhood. He stated that he would like to see the same offered to the north side. Scott Seaborg. 5662 Novak Ave. N., discussed his recollection of earlier meetings where the 150' land parcel was discussed and his understanding that it was to be put in place. He asked the Commission to work toward preserving green space and to not permit development of the area. Valessa Caspers, 13950 56th St. N.,, expressed her concern about development and the what the possibilities for the strip of land not owned by VSSA, if 150' land parcel were it to be purchased by the City and also in the event it was not. Ken Hooge of VSSA responded, that assuming the City purchases the 150' parcel, VSSA is opening to finding a use for the strip of land that is left. He added that VSSA has been approached by the adjoining property owner but that at this time it is not feasible to consider a purchase of the strip and that there is no set plan for what could be at this time. Ms. Caspers expressed her preference to see the area be kept as green space now or even permanently. The Commission discussed whether or not the existing home at the corner of Oakgreen Ave. and 58 St., currently zoned single- family residential, would need to be rezoned for there to be any change at the area. Maurtiz Anderson, 13902 56 St. N., expressed his concern about the impact of the proposed development upon the existing neighborhood and the impact upon their property values. He stated he was surprised when 58 and 57f Streets were connected. He does not want an increase in traffic and is not in favor of the development being proposed. City Planner Richards explained how the 150' land parcel purchase would work assuming that it is to be done. It was noted that a full traffic study is part of the approval requirements. Mr. Hooge stated the units are to be constructed as "for sale" units. L n ~ f Planning Commission Minutes February 12, 2004 Page 4of4 Commissioner Liljegren, seconded by Vice Chair Runk, moved to close the public hearing. Carried 5 -0. Discussion ensued as to the 150' land parcel, manner of purchase if purchased and zoning of the parcel if it is not purchased. Chair Dwyer thanked those who spoke for doing so, noting the importance of receiving community feedback on matters that affect them. Dwyer stated that he felt the City Council needed some feedback on the parcel of land whether or not the Commission elects to recommend approval of the concept plan. Commissioner Oswald, seconded by Commissioner Liljegren, moved to recommend denial of the request and that the zoning as set forth in the current comprehensive plan remain in place. Carried 5 -0. Chair Dwyer, seconded by Commissioner Liljegren, moved to recommend that the City Council purchase the 150' land parcel. Carried 5 -0. New Business: None. Old Business: None. Informational: Oakgreen Village North.: City Planner Richards reviewed a memo of the City Council February 4, 2004 workshop on the issue. Brief discussion ensued. It was noted that the applicant is working wit the City on the density issue and City Planner Richards addressed a question from the audience as to potential roadway design. A. Next Meeting: March 11, 2004 — 7:00 p.m. — Regular Meeting B. Council Representative: February -- Commissioner Powell March — Vice Chair Runk Adjournment: Commissioner Powell, seconded by Commissioner Oswald, moved to adjourn at 8:25 p.m. Carried 5 -0. Respectfully submitted, Julie A. Hultman Community Development Approved by the Planning Commission: f NORTHWEST ASSOCIATED CONSULTANTS, INC. 5775 Wayzata Boulevard, Suite 555, St. LouiS Park, MN 55416 Telephone: 952.595.9636 Facsimile: 952.595.9837 planners @nacplanning.com 2 PLANNING REPORT TO: Eric Johnson FROM: Cynthia Putz -Yang I Scott Richards DATE: March 5, 2004 RE: Oak Park Heights — East Oaks PUD 2 nd Addition: PUD Concept Plan FILE NO: 798.02 — 04.04 BACKGROUND River Valley Rentals, LLC is requesting approval of a Planned Unit Development (PUD) Concept Plan for a development called East Oaks PUD 2 nd Addition. The development p is proposed to contain one 32 unit residential condominium building, one 2,100 square foot office building, and one 5,230 square foot office building. The site area is east of Osgood Avenue and south of Highway 36. Attached for reference: Exhibit 1: Concept Plan Exhibit 2: Condominium Building Elevations Exhibit 3: Office Building Elevations ISSUES ANALYSIS Comprehensive Plan. The entire project area is designated as commercial land use. The Comprehensive Plan land use map should be amended to address the residential land use if this project moves forward. Zoning. . The property is zoned B -2 General Business (north) and R -B Residential /Business Transitional (south). A PUD is a conditional use in those districts. The use of the PUD allows multiple buildings on one property with shared parking. The current zoning is consistent with the proposed project. a t Surrounding Land Uses. To the south of the project site is the East Oaks townhome development. To the east is Club Tara and the Xcel Energy ash disposal facility. To the north is Highway 36 and to the west are apartment buildings. Phasing. The concept plan shows that the proposed residential condominium building will be in Phase 1 and the proposed office buildings are in Phase 2. The applicant estimates that Phase 1 will begin September 1, 2004, and be complete by December 31, 2005. The applicant estimates that Phase 2 will begin May 1 2006, and be complete by June 1, 2007. Market. The applicant has provided the following description of the project: Phase l: A condominium building consisting of 32 units at a target price range of $180,000 per unit average. Three stories with 14,000 square feet per story and an additional 14,000 square feet of underground parking. An elevator serves the parking and three levels of living. Forty -five outside parking stalls for condos. The outside amenities include a pool and patio area, tennis court, and small picnic area near existing holding pond. Possible enhancing of the holding pond. We expect the demand for real estate under $200,000 to increase as property value continue to rise in this area. We feel this is consistent with the City's Comprehensive Plan for mixed use in this area. Being residential and office space. Phase II: Office building(s) on 60 Street. One approximately 5200 square feet, the other approximately 2200 square feet. After this PP description was written, the applicant found that there was not enough open p space for a tennis court. The only outside amenity illustrated on the concept plan is a swimming pool surrounded by a patio. Density. Section 401.15.C.3 of the Zoning Ordinance requires 2,500 square feet of lot area per multiple family unit. In the R -B District, apartment density bonuses are available to allow a maximum 20 percent reduction in square feet of lot area per unit for multiple family dwellings of ten units or more. Bonuses are granted for features such as type two construction, elevator serving each floor, and one -half of the required free parking underground or within the principal structure. The concept plan shows a total of 56,287 square feet (39,543 + 16,744) of lot area devoted to ' residential or common open space. The basic requirement of 2,500 square feet of lot area per multiple family unit results in a maximum of 22 units being allowed. If the building is type 2 construction with an elevator and underground parking, up to 26 units are allowed. The applicant must submit additional information to determine what density bonuses apply. In any case, the maximum density allowed has been exceeded, and the number of units proposed should be reduced. 2 f Setbacks. The front of a lot is defined as that boundary abutting a public right -of -way havin g Y the least width. The roadway along the west boundary is a private road; therefore, the only boundary with frontage on a public road is the north boundary. The front yard setback requirement in the B -2 District is 40 feet. A setback of 25 feet is proposed. The Planning Commission should comment on this arrangement. The proposed setbacks may be allowed as part of the PUD and may be considered appropriate because the property will be fully developed with this project and the buildings will be set back over 60 feet from the pavement of 60 Street North. g p The project complies with the minimum side yard setback of ten feet on the east side of the property. Flexibility is being requested to allow a side setback of five. feet, rather than ten feet, from the west property line. The Planning Commission should consider whether this setback is adequate given that the proposed condominium building is three stories high plus a sloped roof on this side. Similarly, flexibility is being requested to allow a setback of 21.3 feet from the rear, south property line, rather than the 30 feet required in the R-13 District. This side of the building is even taller than the west end because the ground slopes away to the east. Even with evergreen screening, this height appears to be excessive for a reduced setback. Building Height. The maximum building height allowed in the R -B and B -2 Districts is 35 feet measured from the mean ground level to the midpoint of the roof. The condominium elevations indicate that the distance from the finished main level to the roof midpoint is 36-6 ". The distance from the ground level in front of the underground parking garage door to the midpoint of the roof is 48 feet. We do not have enough information to determine the mean ground level; however, in any case, the maximum height allowed in the R -B and B -2 Districts has been exceeded. We recommend that the condominium building be reduced by one story because, as proposed, the project requires flexibility from density, height, and setback requirements. Landscaping and Tree Preservation. General tree cover is illustrated on the concept plan. A detailed tree inventory and landscape plan will be required with the general plan of development. Grading, Drainage, and Utilities. At the time of this writing, additional information is needed in order for the City Engineer to comment on grading and drainage issues. The applicant is requesting that part of a drainage and utility easement be vacated to allow construction of a swimming pool and retaining wall. The applicant is also proposing to add fill on top of an existing sanity sewer pipe. The applicant must provide information about this pipe's ability to accommodate the additional weight. Comment by the City Engineer is needed regarding these concepts, which are significant components of the design. Exterior Building Materials. Proposed exterior materials are rock face C.M.U., cultured stone and vinyl siding. Steel siding or Hardi -board siding is preferred over g vinyl siding. 3 r Parking, At least 2 spaces are required per multiple family dwelling unit. Therefore, at least 64 arking stalls are required for the 32 -unit condominium building. Three parking p stalls plus one parking stall per 200 square feet of floor area are required for each office building. If appears that there is floor area on two stories of each proposed office building. This should be clarified with floor plans. Based upon the building areas indicated on the concept plan, 13 parking stalls are required for the smaller office buildin g( 2,100 x .9 / 200 sq. ft. + 3), and 27 parking stalls are required for the larger office building (5,230 square feet x .9 / 200 + *3). The total required parking for the site is 104 stalls. The concept plan includes 121 stalls, 41 of which are underground. Condominium Trash Enclosure, With the general plan of development, the applicant must submit trash enclose details. The trash enclosure materials must be consistent with the materials used on the condominium building. Lighting and Signage. With the general plan of development, the applicant must submit information related to lighting and signage. RECOMMENDATION The Comprehensive Plan designates this area as commercial, while the zoning separates the property into commercial and residential /business districts. If residential use is approved for the site, the Comprehensive Plan map will need to be revised to address the use. While the use, as proposed, is consistent with the zoning and din land uses there are a number of outstanding surrounding g issues with the concept plan as proposed. Density, setbacks, building height, and engineering issues will need to be resolved before the concept plan can move forward. The Planning Commission should comment on the ro osed setbacks and the possibility of exceeding allowable building heights p p through the PUD process. We recommend the Planning Commission review the project, make comments, request additional information as necessary, and continue the project to the April meeting. 4 EAST OAKS ��• (�F EASTBOUNL3 LAME TR 4` �, � <• - ,� - bra T E �. 2ND ADDITION __•r.. _... -- _ ' , - _ __., _.__ . .............. ....... " -- _ __ A.. _ _... - -- .... _ -- _. -._ .._.._.... _ _ - —..... 'ST NO k Tom. � - .___..._._- __. - -• - _y 8 i t '� .5 i'• Tt� �l ys..n n.e 1ws; '.►I _ I f y tA - JEFF J S.{a•- _- , S89048'04 W HAUSE f _ --- ` - -- 283.7 9 - �..._,, _ � RIVE VALLEY RENTALS, LLP A SHOWN ON THIS SURVEY. 156 STI t �,•r SOUTH GREELEY STREET ,� WATER, MN SS082 Phone: 6S1 -77S -0597 a iR.R -2 �^ - - 1 - - ` _ �'. •'k ••w.++.. ..w. -. ... S'V' 4Y 64 + _ ' , . _ R _ .4 - ^�Q W 75 _ CIiY t: P - COUNTY: i •y r Val ' - 71 ���:_ & : 1 - 1 . ' - - PRO POSED �, _ .,. Ve ,�� 1 ' PRC1 cas - � � �_ -� -� _ � = Ia�� - _ 2�••-• � 2, 0 sq � �, � � f „-• A ";~ 958, _ �'''� _,___ . - - - ,fj 2 _..__ -- 3 `' y_ . --'� .♦` - �" ,: ; $- 2 �; t - EXISTNG OAK PARK HEIGHTS _ - . R STA I J WASHINCTON, COUNTY I wc7�t fi r" % ; 1 r • T�- {'` ` R_ f' OPPOSE, O 3 I b _ � y , •S fi'': �''-�~,.- � � CERTIFICATION 4.� � 30 V t a m _'c 1 - w r•, r © ,:' :h � ,. - _ • ,r _e; :.1 ' _ ` '` `� I hereby art* that this plan was vrfv�d ' _ • x °tea { --� y` �. ^'•.. � - .Y: - _ r �l tlti< r i% t»e or un der I d d _ [ w -Y - ��' t I gun a duly Licensed Land Surveyor � 'T oa . i4to end estate of WNNE30T/4 say eti r `'�,,._., ,' r 1� _ ��••'_,., _ _ _ ,.r"` F,. rld the 1e111rs ai` th ,� _ f ;' b- _ N � z ` ^' rk� - Y _ - }"�^ —". a __— - 1 ` _ - ,, - _ I ��� mss • _ F r -_U�.f i _`- - -- ♦_ r - - - `�`� _ _ .. " - -. _ L. Thurmes i ration ft 25718 i? 8 4�' ` -- _..... _ . w - 12 -23 -03 .JI 1 F 11 y _• _ . -_ ` .•r .i {� f M1 — tip —Y. _ »: - - ""••"'•'— n_ea,•e.,_,... - -.._ ... - . ft PROP05D REVISIONS: s, � �' g o � _ ' —UNIT MNDO�+ MUA�I - - - , . -�LL ;, - - _ �_ _ _ PARKING oATE avtStloN .� o _ a 2 ,•� ,: UtRM ENTS , r'3 902 . ft. ti - C9 �, �,�� � - ,. ,� A - ,. - 12 -23-03 CONCEPT' v SPACE BUILDING #1 = 5.230 SQ.Fi'.1 200 SQFt SMrffAL REVISED CGNCElR 2 -25-04 CtIY MEETING CH OFFICE x = 29.15 STALLS _ F � 8.,, .., =. ; BUILDING #2 2,100 SQ.FT. / 200 SaFT f 3 - 13.50 ,� ;` � f ' STALLS PROPOSED' USE: '` iZIDEWAIL ! 32 UNITS X 2 UNITS - 64 STALLS i ,� ►�L ' TOTAL REQUIRED STALLS = 106.65 STALLS 4 P LA hl N EC, l..J hJ IT ! ' NUMBER OIL STALLS PR�+IiDED - 121 S►STALLS -- = aQANAC� uru.inr _ _ C7► EV E LC> P M E h1 T , E�e3 NT PHASE r REQUIRM STALLS - 64 PHASE 1 PROVIDED f � STALLS - 65 !' .'`. F 1 j Y ~ \.,`" r .,I �.• i t i r I �i °(� '• s `' ` ° ' , , te r _ Y i 1<• j - 72� 7�► -R 5. © - ! 66 1 00 , !,� ••; '• 1'r � ^ •�� ' �� tit k�i ' _ - GARAGE PARKING KLAN: .I d' 1 I 1 t r _!' T ! ! i , a. •' ' ° �i�. , • 1, _ ! � r A. ✓ t -- --- - , } 4 41 STALLS y r.' f • --._ � � { , � � / r� YV7.�.� — !S ; � - 8r rs fa w :- 3 0 6 L , - ( EXISTING EXISTING I MTINC EXISTING' EXJSTINC i EXISTING :y f lu EXISTING �XISTiN TWINHOME TWINHOME TWINHOME TWINHOME 1'VMINHOrI 11NINHOME r r ' I TWIN TWINHOM �. 1 I 2 SCALE 1902 ScWh Qveby ftest Sulls 03 MO wild ft 80hader, MN 56082 Phorw 651.275.13989 F= 661- 275.8078 ♦ VICINITY MAP - NO SCALE: SYMBOLS: SURVEY NOTES: DEVELOPMENT DATA: USE DETAIL: dlt -wee SECTION 4, TOWNSHIP 29, RANGE 20. � MANHOLE CATCH BASIN ♦ {' mdeodm WASHINGTON COUNTY ;� CULVERT HYDRANT i. BEARI ARE BASED ON THE PLAT OF EAST OAKS P.0 -D. CURRENT ZONING P.U.D. not 2- UM& DESCRIFWN PROVIDED BY THE OWNER. HWY, 36 - 60TH ST. -_ -. MCEETER ' WATER VALVE 3- EASEMENTS F.Ni'S SSH;OWN PER COUNTY' HALF SECTION MAPS OR PLAN ZONED 62 AND R-B r CONCRETE unlmr POLE 1 / 3 SCALE LIGHT POLE RECORD PLAT, OTH EASEMENTS, IF ANY. MAY MST AND PROPOSED USE - 32 UNIT CONDO BUILDING AND 2 GENERAL OFFICE ER DENOTES' FOUND TF. 4 ELEC BOx ARE NOT E'f . BUILDINGS, . 1 t 1 IRON PIE F� GAS Y++'�� 4. TOPOGRAPHY FROM WASHINGTON COUNTY OMO PHOTO - T ._,. OVERHEAD WIRES PROPOSED SOWKS ARE SHOWN ON DRAWNG. WELL. DATED APRIL 2000. o DENOTES SEr 1 f2. IRON <�; �' ,< 4 MARKED f ,:...., ,,, ML& G PIPE RLS 25718 , •., % ° r > „.:;,» ;; - .;::..., : COM AREA: z t, x C } /��a .c::; ' - ...a: 48 ! 049 sq, ft. TOTAL AREA OF PARCEL - 104,357 SWT. 1 2.396 ACR5 LAND SURVEYING, INC CALL BITM VDU DiGI RESIDMAL a 4- . lr p`I TREE C OVE R BASED ON ORTHO PHOTO EXISTING LEGAL DESCRI Co her State One Call ESC P11ON. . FU N SURV H03 TWIN QiY lCEA: 651- 454 -0�002 OUTLOT A. EAST OAKS P _U.D.. WAS14WGTON COUNTY Tau � 1- $ao -2sz- i 1 � 1 I ! 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Will — wr `ra p ■rfrw as �p� r ��� r1 �� rrrr L�E � rr_�iir_Fi' _ Q I..a�r_o.w �'-^_`__ .�� 7wf�d -r Yri� +lr \O� , •�t:71 Ol�.wr7��w rrrr -. �i rrr�l - ra•� �...�w[JW -- * -�TTw� ` i_il rift - -- v.o...■Si#.r-+.r.! '� -,- r��.- ..rwl- ..�._...• � 5.. 1:�V.\ '�1'.: tTl II � c�rw rrq�rwr r�o�rrr ■i' - f ^ �:!rA! .i: M�� - Y��.7'� ---- '.114 .i��Yfiss�r.. '."�•i r O �4ta L7 a li wrur�i� , Emma ' or r. s :: . Milik '� t ARCIEN-Ei A5FHNXT S+uS-M ARCHITECTURE « PLANNING* INTERIOR DESIGN : CONSTRUCTION MANAGEMENT 12445 55th STREET -lia SUITE A LAKE ELMO, MK 55442 PHONE 651/430 -4606 _ 1 FAX 651 /430 AWL SIVINS, —AW ANDO ' .� ti .. � � •, �� - - t rt t t I t•rt' -1 (�! t.t t•t — .► � s '• .. `• . MINIM X17'' ••. .. ... .. '• _ ••f t 1 t; , - y •• •. - ., •. ,• '.. � , ' SOUTH ELEVATION ROCKFAC `04)). f �4 R 1 Project iElIE EAST OAK-5 RUD. fJ _ 2ND ADDITION - -J HAUSE s-{ ..,.. �,.• -�'•' .,,,,,,� • • _- — � OAK PAW IEi6H'f'5 PIN Revisions Item Date 2 EAST ELEVATION ,►�.� ��8• s it.o• WEST ELEVATION vs• - r-o• 4 � 4 t' Registration Information ■u..i■ i•ii.. �Ri 41A G \ii Ip �! 1 ' "'7 ♦��` • �Y h :a f cw M.f t We pkal •,�C ft . or or N1�1i �1, drp a da • McMtsat ur�drr dt. laws of the Stats of Nlimesotp. 4 NORTH ELEVATION d Name, Data: Lltienee e Sheet Information c0NC Wr M"ATIONS Project No : 03-tM Droeing No . Drown By : FM Chocked By : K HOEFLElt Dote e ARC.IiNET THE ARCIIi CT[M& MW01K INC. ARCHITECTURE s PLANNING* INTERIOR DESIGN « CONSTRUCTION MANAGEMENT 12445 55th STREET SUITE A LAKE ELMO, MN, 55042 PHONE 651/430 -0606 FAX 651/430-6180 AsPM,Lr SHINGLE5 4 164 - --VIM1 S VWYL KNM*__Jq -:5 :T -�.' - - �---- INTEGRAL DOLOR RA:Kf AGE G,M.U. t SOUTH ELEVATION - OFFICE I:3 I� Project EAST OAKS P.U.D. - 2ND ADDITION _ JEFF HAU5E LLui LIJZ I = 23 i OAK PARK HEI"T5, MN Revisions Item Date EAST ELEVATION -° OFFICE B $ YeST ELEVATION - OFFICE 5 A3.t 1/6" = i`-O" ©4 Registration i nformation I hereby certify that this plan, specification, or report nos prepared by from or under ff4 throat supervislon, and that I am a duo Ucensed FIE Architect under the loos of the State of � i�A+'romsoto. '- Printed Name, SIC, jrlCttlM'e: Dote$ License e, 4 NORTH ELEVATION - OFFICE B Sheet Information CONCtei MMATIONS Project No 03-11? Drowing No Dra wn By FBEi Checked By M HOMER Al 0) Dote : 5/212044 02004 The Architectural Network, Inc. a• .+r i March 5, 2004 STEVENS G INEERS Mr. Jeff Hause River Valley Rentals 1421010th Street North Stillwater, MN 55082 Re: East Oaks Development — Storm Water Management Plan and Pond Alterations Dear Mr. Hause: This letter is a summary report on our findings and recommendation on the subject of the storm water pond design for your proposed amendment to the East Oaks PUD. The City of Oak Park Heights requested that we address the question of whether the existing pond will need to be increased to handle the additional hard cover on the site. We have done that and determined that the existing pond must be increased in size, the outlet pipe must be replaced with a larger pipe and an outlet structure, but this can be accomplished within the parameters of the site plan as proposed. The revised storm water pond and outlet will meet current design standards for storm water ponds. The design of the existing pond included the total area of the PUD and immediate tributary area. However, the runoff curve numbers did not consider the amount of hard cover proposed for this project The existing pond has a 21" diameter RCP pipe outlet This is connected to the existing 36" storm sewer that runs through the site. Our calculations and concept design indicate that we can maintain the existing peak rate of discharge to this storm sewer by expanding the pond and by replacing the 21" outlet pipe with a 24" pipe and an outlet control structure. We used HydroCADII" software to model the runoff' and pond routing. The commercial outlet proposed for development is not now routed through the pond. This is shown in our existing condition routing schematic. We routed the flows to the existing 36" storm sewer for purposes of computing summed hydrographs to compare existing and proposed flows. After development, the outlot runoff will be routed through the pond. This is shown in the proposed condition routing schematic. The schematics and flow summaries are attached to this letter. JIM:WY DOCUMENTSIJEFF HAUSE 030504.DOC 5046 1656 Livingstone Road • Hudson, W1 54016 715 - 386 -5819 • 651- 436 -2075 • 800 - 822 -7670 • fax: 715 - 386 -5879 • www.stevensengineers.com We will be available 10 answer your questions regarding this subject at your meeting of March 11 th. We are available to discuss this with your staff at their convenience. Sincerely, amen P. DeBenedet, P.E. STEVENS ENGINEERS, INC. enc. PC. Eric Johnson, City Administrator Dennis Postier, P.E., City Engineer Mr. Jeff Hause March 5, 2004 Page 2 1S 4.R Commercial Outlot s ting 36 in Pipe /33 P 1 ,00 Pond 1 ZS Twinhome Area SUbCd Reach Aon Link Drainage Diagram for East yaks Exist 2004 Prepared by {enter your company name here} 3/4/2004 HydroCADS 7.00 s/n 002721 0 1986 -2003 Applied Microcomputer Systems East Oaks Exist 2004 Type 11 24-hr 100 Year Rainfall= 5.90" Prepared b Stevens Engineers - JPD Page 7 p Y jyidroCAM 7.00 stn 002721 0 1986 -2003 Applied Microcomputer Systems 3/5/2004 9:09:35 AM Time span =5.00 -20.00 hrs, dt =0.05 hrs, 301 points Runoff by SCS TR -20 method, U H =SCS Reach routing by Stor -Ind +Trans method - Pond routing by Star -Ind method Subcatchment 1S: Commercial outiot Runoff Area =2.330 ac Runoff Depth =2.50" Flow Length -750' Tc=9.8 min CN =70 Runoff- efs 0.485 of Subcatchment 2S: Twinhome Area Runoff Area =5.970 ac Runoff Depth =3.04" Tc =10.0 min CN =76 Runoff--29.70 cfs 1.514 of Reach 4R: Existing 36 in Pipe Peak Depth =0.82' Max Vet =15.6 fps Inflow =24.44 cfs 1.977 of D =36.0" n =0.013 L =500.0' S =0.0500 '1' Capacity = 149.14 cfs Outflow=24.28 cfs 1.976 of Pond 3P: Pond 1 Peak Elev=844.58' Storage =17,596 of Inflow--29.70 cfs 1.514 of 21.0" x 98.0' Culvert Outflow=16.27 cfs 1.493 of , Total Runoff Area= 8.300 ac Runoff Volume =1.999 of Average Runoff Depth= 2,89" •S. . "�. 5 a J• : , , is I r , :'. ±;;.jam p sting 36 - in Rip Commercial Outlot Pond 1 2S Twinhome Area S u bcat. Reach Aon - Drai Diagram for East Oaks Proposed 2004 Prepared by Stevens Engineers - JPD 315/2044 HydroCAD® 7.00 stn 002721 01 986 -2003 Applied Microcomputer Systems a East Oaks Proposed 2004 Type Il 24 -hr 100 Year Rainfall =5.90" prepared by Stevens Engineers - JPD Page 14 H droCADO 7.00 sin 002721 0 1986 -2003 Applied Microcomputer "ems 3/5/2004 9:28:17 AM Noma Time span =5.00 -20.00 hrs, dt =0.03 hrs, 501 points Runoff by SCS TR -20 method, U H =SCS Reach routing by Stor4nd +Trans method - Pond routing by Stor -Ind method Subcatchment 1S: Commercial outlot Runoff Area =2.330 ac Runoff Depth= 3.53" Flow Length =750' Tc =5.2 min CN41 Runoff--I 5.71 cfs 0.686 of Subcatchment 2S: Twinhome Area Runoff Area =5.970 ac Runoff Depth =3.04" Tc =10.0 min CN =76 Runoff =30.10 cfs 1.514 of Reach 4R: Existing 36 in Pipe Peak Depth =0.78' Max Vet =15.1 fps Inflow--21.92 cfs 2.156 of D =36.0" n =0.013 L= 500.0' S =0.0500 'P Capacity --149.14 cfs Outflow--21.88 cfs 2.154 of Pond 3P: Pond 1. Peak Elev= 845.44' Storage =35,301 cf Inflow- -43.44 cfs 2.199 of Outflow--21.92 cfs 2.156 of Total Runoff Area = 8.300 ac Runoff Volume = 2.199 of Average Runoff Depth = 3.18" i And Mphkl STEVENS lip March 4,2004 ENGINEERS Mr. Jeff Hause River Valley Rentals 1421010th Street North Stillwater MN 55082 Re: East Oaks Development - Existing Sanitary or Storm Sewer Pipes Our File No. 5046 Dear Mr. Haase: We have evaluated the structural capacity of the existing 7 2° RCP Class 4 sanitary sewer pipe and the existing 36' RCP Class 5 storm sewer pipe that cross the property. Both pipes are at or exceed the design maximum depth of bury as they currently exist. If fill is added to the side, the pipes must be replaced with a heavier grade pipe. The proposed grading plan requires fill to be added to the site therefore requiring the replacement of both pipes with Class 4000D and 5000D RCP depending on the location. In our opinion, any reasonable development on this site will require the replacement of the two pipes. tf you have any questions regarding this information please feel fires to call our office at 651.436.2075. . Yours very briny, STEVENS ENGINEERS, INC. ' I v Scott A. Ward, P.E. C: Eric Johnson -City Administrator Dennis PostJer- Bonestroo &Associates Jim DeBenedet- Stevens Engines ' 1656 Livingstone Road •Hudson, WI 54016 715 -388 -5819 • 851 - 438 -2075 • 800- 822 -7670 •fax: 715 - 346 -5879 • www.stevensanglneers.com March 5, 2004 STEVENS E N G I N E E R S Mr. Jed Hause River Valley Rentals 14210 10th Street North Stillwater, MN 55082 Re: East Oaks Development —Storm Water Management Plan and Pond Alterations Dear Mr. Hause: This letter is a summary repot on our findings and recommendation on the subject of the storm water pond design for your proposed amendment to the East Oaks PUD. The City of Oak Park Heights requested that we address the question of whether the existing pond will need to be increased to handle the additional hard cover on the site. We have done that and determined that the existing pond must be increased in size, the outlet pipe must be replaced with a larger pipe and an outlet structure, but this can be accomplished within the parameters of the site plan as proposed. The revised stone water pond and outlet will meet current design standards for storm water ponds. The design of the existing pond inducted the total area of the PUD and immediate tributary area. However, the runoff curve numbers did not consider the amount of hard cover proposed for this project The existing pond has a 21' diameter RCP pipe ouflet This is connected to the exIstlng 36' storm sewer that runs through the site. Our calculations and concept design indicate that we can maintain the existing peak rate of discharge to this storm sewer by expanding the pond and by replacing the 21' outlet pipe with a 24' pipe and an outlet control structure. We used HydroCADTM software to model the runoff and pond rouging. The commercial outlot proposed for development is not now routed through the Pond. This is shown in our existng condition routing schematic. We routed the flows to the existing 36° storm sewer far purposes of computing summed hydrographs to compare existing and proposed flows. Affix development, the outlot runoff will be routed through the pond. This is shown in the proposed condition routing schemaft. The schematics and flow summaries are attaached to this letber. JIM:IMY DOCUMENTSUEFF HAUSE 030504.DOC 5046 1656 Livingstone Road •Hudson, WI 54016 715 -386 -5819 • 651 - 436 -2075 • 800 - 822 -7670 • fax: 715 - 386 -5879 • www.stevensengineers.com f We will be available to answer your questions regarding this subject at your meeting of March .11th. We are available to discuss this with your staff at their convenience. Sincerely, Ames P. DeBenedet, P.E. STMNS ENGINEERS, INC. enc. Pc. Eric Johnson, City Administ'*r Dennis Poster, P.E., City Engineer Mc. Jed Nause . March 5 2004 Page 2 1S 4R. Commercial Outlot sting 36 in Pipe 3-P Pond 1 2S Twinhome Area Z Ubca�j Link Drainage Dfagrsm For East Oaks Exist 20 4 Reach on , Prepared by (ewer your oompnny name hot*) 3I412004 HydroCADO 7.00 sM 002721 0 1985 Applied Mlcr000mputor Systems Ole East Oaks Exist 2004 Type 1124 -hr 100 Year Rainfall =5! 900 . Prepared by Stevens Engineers - JPD Page 7 t jjydroCAM 7.00 a/n 002721 0 1986.2003 Applied Microcomputer Systems 1WO04 9 :09:35 Ai l Time span =5.04 -20.00 hrs, dt;:0.05 hrs, 301 points Runoff by SCS TR -20 method, UH =SCS Reach routing by Stor Ind+Trans method - Pond routing by Stor -Ind method Subcatchment IS: Commercial Outlot Runoff Area =2.330 ac Runoff Depth= 2.50" Flow Lengti=750' TQ =9.8 min CN =70 Ruhoff=9.70 cfs 0.485 of Subcattchment 2S: Twinhome Ama Runoff Area =5.970 ac Runoff Depth=3.04a Tc=10.0 min CN =76 Runoff=29.70 cfs 1.514 of Reach 4R: Existing 36 in Pipe Peak Depth =0.82' Max Vet =15.6 fps Inflow-- cfs 1.977 of D- 36.0" x=0.413 1.= 500.0' 8=0.0500 T Capacity =149.14 cfs Outflow =24.28 cfs 1.976 of Pond 3P: Pond 1 Peak Elev=844.5W Storagem9 7,596 cf Inflow=29.70 cfs 1.514 of 21.0" x 98.0' Culvert Outflow--1 6.27 cfs 1,493 of Total Runoff Area = 8.300 ac Runoff Volume =1,999 of Avemge Runoff Depth 2.8999 9 � • w yy �. 1 Y �� is • Stan 3 •in Pf pe Com mercial Outlot . Pond 1 2S Twinhome Area R� or;:[ Drainage Diaam 1'br Easy Oaks Pro posed 2004 Sub C� gr Propsrod by Stowm Engineers - BPD 3ro '�-'` HydroCACM 7.00 stn 002721 01W6.2003 Apptied MItmoomputer Sy.49ms ` s § : East teaks Proposed 2004 Type I/ 24 --hr 100 Year Rainfall =5.90" Prepared by Stevens Engineers - JPD Page 14 HvdroCADS 7.00 stn 002721 ®1986 -2003 Applied Microcomputer Systems 31.5/2.994 9; 8 :177 AM Time s p an=5.00 -20.00 hrs, dt=0.03 hrs, 501 points Runoff by SCS TR -20 method, UH =SCS Reach routing by Stor4nd+Trans method - Pond routing by Stor -Ind method Subcatchment 1S: Commercial WOW Runoff Area =2.330 ac Runoff Ds 3.53" Flow Longth=730' To =52 min CN =81 Runoff--1 5.71 cfs 0,686 of Subcatchment 2S: Twinhome Area Runoff Area=5.970 ac Runoff Depth =3.04" To =10.0 min CN =76 Runoff--30.10 efs 1.614 of Reach 4R: Existing 36 in Pipe Peak Depth =0.78' Max Wet =15.1 fps Inflow--21.92 cfs 2.156 of D= 36.0'' n=0.013 L= 500.0' $- T Capscity=149.14 cfe Dutflow=21.88 cfs 2.154 of Pond 3P: Pond 1 Peak EIev=845.44' Storage=35,301 cf Inflow- cfs 2.199 of ou fTow =21.92 cis 2.156 of Total Runoff Area = 8.340 ac Runoff volume 2.199 of Average Runoff' Depth = 3.18"