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HomeMy WebLinkAbout2001-11-07 Applicant Fax to OPHFROM : Goldridge Group GOLDRIDGE GROUP MINNESOTA, LLC TO: Kris Danielson COMPANY: City of Oak Park Heights FAX NUMBER: 651 -439 -0574 PHONE NUMBER: 651- 439 -4439 x.241 RE: Routson Motors Parking ❑URGENT DFOR REVIEW Sincerely, lette Parrott Planning Administrator arrott oldrxd emn.canr CC: Brad Coats Dennis Postler PHONE NO : 763 57? 1540 Nov. 0? 2001 11: 12AM P1 FACSIMILE TRANSMITTAL SHEET E P LEASE COMMENT FROM: Paulette Parrott DATE: 11/07/2001 1 AM TOTAL NO. OF PAGES INCLUDING COVER: 5 E- MAIL: YOUR REFERENCE NUMBER: 3021 " HARBOR LANE - SUITE 206 - PLYMOUTH, MN 55447 763.557 -9445 FAX 763-57745 DI>LEASE REPLY °PLEASE RECYCLE NOTES/COMMENTS: Good Morning Kris, Hartung f rom t he Middle fit. Croix River Watershed is a copy of the memo that Ken �a � Routson received from Mark Doneux in response to our plans for . attached a copy of the memo we received from Ulteig Engineers Motors Parking. � have also, attach py Mark Done�x's memo. 1 • ddressin t he c omments, responding and addressing questions and concerns from M . site tee Engineers on Thursday night and will then AM will receive the revised s�tc pl�.ns from Ulteig copies Express ies to you on Friday for Monday's delivery. p p Please feel free to contact me if you have any question, comxrients or concerns. t FROM : Go1dridge Group 10 1b :1,D MINNESOTA - �* SOIL AND WATER CONSERVATION DISTRICTS October 30, 2001 'r. Ki Hartung,, City Administrator City of Bayport 294 North Third Street Bayport, MN 55003 RE: proposed Routson Parking Dot Expansion prof ect — City of Oak Park Hei Dear Kam; Our office has received and reviewed the con.etniction plans, dated August 23 and revised September 28, 2001, for the proposed Routson parking Lot expansion project The project site is located at the existing Routson Motors, in Section 33, 'town. 10 North., kt ange 20 West, City of Oak Park Heights. This project involves creating new parking lot and stormwater ponding facilities on existing Routson property. As part of our review' we visited the site and discussed the plans with project representative, Rich Revering of Ulteig Engine Inc. The Washington SWC.D has no direct regulatory authority over this project and our review is being made on behalf of the Middle St. Croix Watershed Management Organization. Based upon the site conditions observed and the proposed plans we would offer the following comments: 1) Stamlwater Management The project proposes to create approximately one acre of n xr paridog lot (impious surface) from existing vacant land (pervious surface). Water quantity and quality pondi ng is currently proposed along the eastern edge of this site. We v.Y • • • mmend that the a • R licant . • i • • cntati • n , , ; .. e • • st d: : oprnent rate of is not -� - �,� : f : the • rveio • ment. rate. 'h of sha um ente f Ion 10O- eat' fr � events 'Also water u i on -site h vide enou dead story c u .5 inch rain event F r her device va�l . •� i� ��,. :. d��ce �,/ :� � � that •Y'r L�� � � • tables �,��Vnn lea e .5 ► ,.! .4; Q 4 should be installer at the e tha opus p 4 'f'he went h ` dram. whi this wii 1 not cause a mkon pr lsrng Based on my observation of the site and the proposed plan, believe both of these requirements can bi met with little difficulty. In fact, several of the stormwater management criteria may already have been met but simply must be documented PHONE NO. : 763 577 1540 Nov. 07 2001 11: 13AM P2 AN EQUAL OPPOR1'UNFT'Y EMPLOYER WA. ,NGTOH SOIL AND WATER CONSERVATION DISTRICT 182S curve Cry DM., Acorn 101 Stfltw&Ierr, MN 554 (661) 4304820 Fax; (u 1) 4.304 1 D MAILER] FAX # 439-7188 is 1 FROM : Goldridge Group Lt LJU Mr. Ken Hartung October 30, 2001 Pe's'o 2) Grading and Erosion Control Since much of the site work is located adjacent to impervious areas and/or fragile soils, erosion cone tem requirements will need to be closely followed to minimize soil erasion, a straw L.... u&ed •r ro rates ` st b e e and seed free. In the evert of concentrated flow leaving the site, ou l mconarm that the con for b e r ared to late ' ` oral r ` t fence in low arm sedimen from le a. ` the site. Silt fence along the project perimeter should remain in place until the site is restored and stabilized. The specifications should require the mechanical anchoring of straw mulch on the contour, however, most equipment can not operate safely on slopes steeper that 4 :1, Therefore, Agiwornnien4 all elo • es ste ' • er that 4.1 . ' covcrc d with era ~ „ . , 4 r ontrol mat j such, as i?yoo d fib ear blitast, insi..of Mark J. Doneux, CP C Water Resource Coordinator Certified Profesiorml in ism :ion and Sediment Covrol E:lveolwp \WSD\MSCWiviCA1 outNon Mown 10-30 -01 Comment lottcriDOC PHONE NO : ?63 5 ?7 1540 Nov. 0? 2001 11 :13PM P3 i 1 ; ,I straw mulch. I hope that these comments will assist you with the review and comment an this project If you have any quegtions, plcasc feel free to call one at 430.6826 cc: David Bealtdct, Middle St. Croix Watershed Management Organization Kira Irnpers, Acting City City of Oak Park Heights Rich :Revering, Ulttoig Bnginrcrr, inc. 5201 East River Road, Suite 308, Minneapolis, MN 55421 C 2 FROM : Go l dr i d ge Group NOU- -20G 1 05:55 CONSULTING ENGINEERS SINCE 1044 4 Mr, Brad Coates Ciotdrid g© Group 3021 Harbor Lamo Re: Stornawater Management — Additional Analysis Rout of Motors Temporary Parking Lot LTEI Project No. Q0 -759S Dear Bradt We 'have reviewed the comments prepared by Mark Doneux of the Washington Soil and Water Conservation District. He reviewed information related to the pond and drainage scheme ai the above refined ' roect that we prepared and sent to you on September 20, 2001. Mr. Dom counts were P � City � seeks ad dressed to Ken rttuag, City of Bayport Administrator. It i o� understanding the Cit y of :Bayport to have the requirements recommended by Mr, Dome met by this project. Enclosed you s un osad ou will find sary table listing data used and results calculated for runoff from a 2, 10, and 1.00 Y ear storm from the existing and proposed site. This data applies to the nosy 2240 feet of the expansion, F x this axe %� b will be no runoff for any design storm. All Doff is con ined in the parking pond and will be r les cd into the soil by infiltration or released to the atmosphere by evaporation we recommend. the outlet culvert shown on the plans be deleted, This mum= was intended as a safe ovediow device, Our calculation of water levels for the 100-year storm with to outlet indicates it is not necessary. deletion of the culvert would eliminate the need for a skimming device. The only time floatablc nutrial might leavc the pond would be dung a runoff went far exceeding that of the maximum design storm The r e sou#heri 100 feet of the tiew lot drains to the exiting lam. The drainage area is approximately 1/3 of an acre. 'Fora 100 -year storm the increase in punt ff would be leu than 2 els, The ire would be less than 1.5 cf& for a 10-year storm, This lnc.ret.sc is minor relative to the ruff from the existing lot.. Due to grading eonstreints and the prior exceed incret ee the pond dtign does not inclucit runoff from this are.. A p and could be introducsed for this area, however it would likely mean hauling mess soil off the site OT raising grades on the proposed lot. Our examination of the tiurvty indioatas raising glides would push slopes closer to, or possibly into, the tree Tine. The proposed parking lot with s pond as shown allows no riff h the northestcsly direction for stogy above and beyond the 100-year design storm. Pot this same stbrit. the expected peak runoff of 6 cfs i reduced to 2 cfs and is only allowed onto the existing lot. For most storms the increasc on the existing lot would be rog1igibte. We believe the design pond provide& A rcu ouable means of rate control atxd water polity control for the new parking area The design has the added bench of promoting infiltration and evn rLtion, essentially mimicking existing runoff conditions, We are available to discuss this design with you or review authorities. Plmase call nae at (763) 277 -6227 with questions or corunetts. 'V..,trulyy Rich Revering, PE Civil Dept. Manager ULTEIG ENG1NEERS,1Nc. 20) E. RIVER ROAD, SUITE 308 PHONE', 783479 -2500 M[h1NEAPOLIb, WSN 6t421.1027 FAX: 70; 1 - 't1ed PHONE NO : 763 5 ?? 1540 Noy. O? 2001 11. 14AM P4 � . 02/ V.I3 EX) U li. oppoAxvNrm £MPLoYER OTHER OFFICES: FARGO, NO EtISMARCA, NO o Vx rALLs, so FROM : Goldridge Group PHONE NO. : 753 577 1540 Nov. 0? 2001 11:14AM P5 NOU- -2001 t5 ; 55 P.03/03 Input Data and Pond Performance Summary for Northerly TwoThIrds of Routson Motors Expansion Parking rain e ea r o1. ita1Io n Pond Disohar Fond Elevation 0 inti 0,3 In3i Pond Daia TOTAL P.03