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HomeMy WebLinkAboutExcavating & Filling Permit447-4230 Applicant Address: Property Owner: Address: Contractor: Address: Consultant Address: Permit No. CITY OF PRIOR LAKE APPLICATION FOR EXCAVATING/FILLING PERMIT 0~- C_~I~- Date ]o / . ov -zooz iLi By¸ Lq / Phone #, Phone #. Engineer/Surveyor Phone # Location of Property: Will the excavation or filling be in a: Watercourse Purpose for the pwposed excavating or filling: Wetland, Upland \ , Estimated start date: What is the type of material to be removed or deposited: Completion date: ~'~ I / ~ 0 ~ 0 In what manner will the material be removed and/or deposited? Tv ~.c_ ~ What highway, street, or other public way will material for removal or depositation be hauled or carried? What, if any, street, avenue, lane, alley, highway, fight of way, thoroughfare or public ground will be obstructed? IT SHALL. BE THE RESPONSIBILITY AND THE BURDEN OF THE APPUCANT TO DEMONSTRATE TO THE SATISFACTION OF THE CITY ENGINEER FOR THE CITY OF PRIOR LAKE THAT THE PROPOSED EXCAVATION AND/OR FILLING COMPLIES WTTH THE OVERALL CITY OF PRIOR LAKE STORM WATER MANAGEMENT PLAN. SAID BURDEN SHALL INCLUDE THE FURNISHING OF A REPORT ~ SUlSPORT- ING CALCULATIONS OF A REGISTERED PROFESSIONAL ENGINEER. Will proposed excavation or depositon affect the City of Prior Lake overall storm water management plan? Yes No [.,/If yes, show proposed effect. SUBMISSION REQUIREMENTS: (A) Completed application form (B) Completed legal description (C) Map or plat of the proposed filling or excavating showing location and amount of malerial proposed to be removed of deposited, with a description of the area (D) The depth or heights to which such removal or deposition is proposed throughout the area and the proposed angle of ali slopes to be shown on a 2' contour map at a scale of I" =50' or larger: The projxned and original contours shall be shown in- cluding all property within 150' of proposed excavation or deposition and shall be signed by an engineer or surveyor registered in the Sta~e of Mianesota .(E) Erosion control plan (F) Affect on existing utilities (G) Protection of site by erection of suitable fence, guard or barricade (H) Application fee (I) Bond, letter of credit, or deposit of monies in a sum sufficient to pay the cost of restoring a site. The extra ordinary costs of repairing, highways, streets or mher public ways along designated routes of travel and to pay such expenses as the City may incur by reason of doing anything required to be done (J) Public liability insurance. Amount of bond ~A Letter of credit, /,IA or dec~'il~ of money ~ .liabilityinsuranceprovided Permit deposit City Engineer . ~ Date ,/0,/2//03 Permit,c(s~alid if signed by City Engineer. ~0/14/2003 11:~B B51BBlg4BB P~ONEER EN~ PA~E 02/02 EXHIBIT "C" TO PRIOR LAKE PUBLIC WORKS DESIGN MANUAL PERMIT TO WORK WITHIN CITY PROPERTY RIGHT-OF-WAY/EASEMENTS AND APPLICATION FOR INSTALLATION OF UTILITIES Indicate below items to be affected and i~dude a sketch or pltn of work to be done. Curb & Gutter ~ Trail/Sidewalk Pond/Wetlands Traffic Control Devices/Signs Dra/nage Structure/Buildings Other Street Tr~s: (Public, ally owned,__ Or Privately owned Utiliti=s 4. MethodofInstallationorConslruction ~,~ r.~T 5. Work to start on m aflzr: ~t~ -~.~o ~ ..... and shall be cxm~_pleted by: DATE STAFF/DATE Will dcWuring of traffic be neccsss~? ].f necessary t~ detour traffic, clescn'be suggested Provide with this application a copy of thc contracto~ Public Liability Instu'mlce, DETOURS: The Director of Public Works shall, be ~otified in writing at least 72 hour~ in advance of any detour being established, changed or dis¢ontinu~t NAMt/OF APPLICANT PHONE ADDRBSS STREET CITY STATE ZIP NAME OF PARTY OR, ORGANIZATION PEKFORMING WORK CONTACT PEKSON: EMEROF~CY (2~ }tR.) PHONE#: ADDRESS: DAY PHONt/ STREET CITY STATE ZIP The undersigned herewith ~ccepts thc terms and conditions of ~his permit by thc City of Priar Lake as herein contained ,~d agre~ ~o fully comply therewith ~o the satisfaction of the City of Prior Lalm. Signed: Tide: Da~e: O;~A dmia~PORM~iI4~IT ¢ A}A~L~ FOR I]~TALL Ol~ TJ'rKlTl~.d~ Larr Poppler From: Sent: To: Subject: Nicholas A. Polta [NickP@PioneerEng.com] Friday, October 10, 2003 4:33 PM Larry Poppler Welcom Ave Larry As near as I can tell Bob used approximately 170CY of fill over 0.11 Acres. I will fill out the ROW permit and have Bob submit as soon as possible. Have a nice weekend. > Nicholas Polta > PIONEER ENGINEERING > 2422 ENTERPRISE DRIVE > MENDOTA HEIGHTS, MN. 55120 > (651) 681-1914 FAX: 681-9488 > Npolta@Pioneereng.com > > The electronic data is transmitted for your convenience and is the sole property of Pioneer Engineering, P.A. By accepting, the recipient agrees to indemnify, hold harmless, and defend Pioneer Engineering, P.A., from and against any and all damages, liabilities, claims, losses and expenses (including attorney> '> s fees) arising from the use of this data. This electronic data is subjected to change and updates are the responsibility of the recipient. Pioneer Engineering, P.A., is not responsible for updating the data or for compatibility with recipient> '> s hardware and / or software. Please check this file for virus contamination prior to use. Should you intend to rely upon a global positioning satellite (> "> GPS> "> ) for interpretation of Pioneer> '> s work product. It is understood that Pioneer> '> s services do not include project observation or the review of your performance and you agree to waive any claims against Pioneer that may be connected thereto. Grading Plan Review Fees and Grading Permit Fees Bob Johnson Property - 16860 Welcome Avenue South Plan Review IAmount (CY) 170 Grading Permit Amount (CY) 170 Fee ($) $37.00 Fee ($) $37.00 Total Fee $74.00 Double Permit Fee Applies so Total Fee = $148.00 No Letter Of Credit, Bond, or Deposit is needed since the work has already been done. Bob Johnson · Survey of filled area (show property information) · Survey of ditch (existing and proposed) · Show inverts of the pipe. · Show erosion control and restoration plan. Show amount of fill used for the calculation of the grading fees. · Show area disturbed by filling area and ditch grading. · Need right of way permit. May 5, 2003 Robert W. Johnson 5018 43rd Avenue South Minneapolis, MN 55417 RE: Site Grading Dear Mr. Johnson, The City of Prior Lake has reviewed the hydraulic calculations and letter dated March 5, 2003 prepared by Pioneer Engineering. The proposed 15" pipe appears to be a favorable solution to the drainage issue. At this point to proceed with the construction of the 15" pipe, please provide engineering drawings showing the proposed improvement, area previously filled, erosion control / restoration plan, cross section of the eastern ditch, right of way, and construction details. The amount of material previously filled and grading limits are necessary to compute the grading fees. The invert elevations of the pipes and the cross section of the ditch are needed to show that it will drain properly. The right of way and property information is needed to show that the eastern ditch is indeed in the right of way and to provide reference to the project areas. In addition to the Excavating / Filling Permit, a Right of Way Permit will also be needed for this improvement. Please call me at 952-447-9832, if you have any questions. Sincerely, ~Popple~ Assistant City Engineer Cc: Sue McDermott, City Engineer Nick Polta, Pioneer Engineering 16200 Eagle Creek Ave. S.E., Prior Lake, Minnesota 55372-1714 / Ph. (952) 447-4230 / Fax (952) 447-4245 AN EQUAL OPPORTUNITY EMPLOYER PIONEIER engi neering Civil Engineers · Land Planners · Land Surveyors ° Landscape Architects March 5, 2003 Mr. Larry Poppler City of Prior Lake 16200 Eagle Creek Ave SE Prior Lake, MN 55372 Re: 16860 Welcome Avenue Mr. Poppler: As you know I have been contacted by Bob Johnson to review the drainage of his property on Welcome Avenue. It is my understanding that grading on his property has impacted the drainage of Welcome Avenue. Mr. Johnson requested a review of the hydrology along the south east comer of his property to determine if his actions have impacted his southemly neighbors drainage. No attempt was made to model the hydrology prior to the disturbance along Welcome Avenue. No determination as to the location of the disturbance relative to the Welcome Avenue Right of Way was made. I have visited the site and reviewed the topographical information provided by the City as well as a Certificate of Survey provided by Mr. Johnson. From this information a simple hydrological model was constructed to determine the effects of critical 100 year storm event. The site as it sits today drains along Welcome Avenue through a 4" HDPE draintile placed by Mr. Johnson. This creates a 3.0' deep pond along the south property line that takes approximately 20 hours to effectively drain, see attached calculations. This encroaches on the neighboring property as shown on the attached plan. Since the 4"pipe is prone to clogging fi.om debris it is anticipated that additional flooding could occur. To minimize the ponding on the neighboring property, a model with a 15"CMP underneath Welcome Avenue discharging to the ditch east of Welcome Avenue was proposed. This decreases the pond to 1.7' maximum depth and a duration of less than 1 hour as sbonmn the attached plan. The 15" pipe is the standard minimum size for City structures. To alleviate the present and furore flooding, I propose that a 15" culvert be designed to fit the easterly ditch profile of Welcome Avenue. From the topography provided by the City it appears that the ditch profile should be adequate with some slight modifications. A cross section of the ditch and Welcome Avenue at the proposed crossing would be necessary to insure the design is feasible. 2422 Enterprise Drive · Mendota Heights, Minnesota 55120 · (651) 681-1914 ° Fax 681-9488 625 Highway 10 N.E. · Blaine, Minnesota 55434 · (763) 783-1880 · Fax 783-1883 Please let me know how you want to proceed in this matter. If you have any additional questions or require any additional information please feel free to call. Sincerely, PIONEF_3R ENGINEERING P.A. Nicholas Polta CCi Bob Johnson 5018 43rd Avenue So. Minneapolis, Minnesota 55417 I.U '-r- LU n-o WELCOME AVE - PRIOR LAKE Type II 24-hr 100 YEAR Rainfall=6.00" Prepared by PIONEER ENGINEERING Page 1 HydroCAD® 6.20 s/n 000895 © 1986-2003 Applied Microcomputer Systems 4/1/2003 Subcatchment 1S: DRAINAGE TO DITCH ON WELCOME AVE Runoff = 6.75 cfs @ 12.00 hrs, Volume= 0.356 af, Depth= 3.78" Runoff by SCS TR-20 method, UH=SCS, Time Span= 5.00-48.00 hrs, dt= 0.05 hrs Type II 24-hr 100 YEAR Rainfall=6.00" Area (ac) CN Description 0.560 0.570 61 GRASS/OPEN SPACE 98 BUILDINGS/PARKING/STREET 1.130 80 Weighted Average Tc Length Slope Velocity Capacity (min/ (feet)(ft/ff/ (ft/sec) (cfs/ 8.5 380 0.0300 0.7 Description Lag/CN Method, Subcatchment 1S: DRAINAGE TO DITCH ON WELCOME AVE 0 5 6 7 8 9 10111,' Type II 24-hr 100 YEAR Rainfall=6.00" Runoff Area=l.130 ac Runoff Volume=0.356 af Runoff Depth=3.78" Length--380' Tc--8.5 min CN=80 131415161718 19202122 23242526 27282930 31 32 33 34 35 36 3738 39404142 43444546 4748 Time (hours) WELCOME AVE - PRIOR LAKE Type II 24-hr 100 YEAR Prepared by PIONEER ENGINEERING HydroCAD® 6.20 s~n 000895 © 1986-2003 Applied Microcomputer Systems Rainfafl=6. 00" Page 2 4/1/2003 Hydrograph fOr Subcatchment 1S: DRAINAGE TO DITCH ON WELCOME AVE Time Precip. (hours) (inches) 5.00 0.38 5.50 0.43 6.00 0.48 6.50 0.54 7.00 0.59 7.50 0.66 8.00 0.72 8.50 0.79 9.00 0.88 9.50 0.98 10.00 1.09 10.50 1.22 11.00 1.41 11.50 1.70 12.00 3.98 12.50 4.41 13.00 4.63 13.50 4.79 14.00 4.92 14.50 5.03 15.00 5.12 15.50 5.21 16.00 5.28 16.50 5.35 17.00 5.41 17.50 5.47 18.00 5.53 18.50 5.58 19.00 5.63 19.50 5.67 20.00 5.71 20.50 5.75 21.00 5.79 21.50 5.83 22.00 5.86 22.50 5.90 23.00 5.93 23.50 5.97 24.00 6.00 24.50 6.00 25.00 6.00 25.50 6.00 26.00 6.00 26.50 6.00 27.00 6.00 27.50 6.00 28.00 6.00 28.50 6.00 29.00 6.00 29.50 6.00 30.00 6.00 30.50 6.00 Excess (inches) 0.00 0.00 0.00 0.00 0.00 0.01 0.02 0.03 0.05 0.08 0.11 0.16 0.24 0.39 2.02 2.39 2.57 2.71 2.82 2.92 3.00 3.07 3.14 3.20 3.25 3.31 3.36 3.40 3.45 3.49 3.52 3.56 3.59 3.62 3.66 3.69 3.72 3.75 3.78 3.78 3.78 3.78 3.78 3.78 3.78 3.78 3.78 3.78 3.78 3.78 3.78 3.78 Runoff (cfs) 0.00 0.00 0.00 0.00 0.01 0.01 0.02 0.03 0.05 0.06 0.09 0.13 0.20 0.38 6.75 0.67 0.40 0.30 0.24 0.21 0.19 0.16 0.14 0.13 0.13 0.12 0.11 0.10 0.10 0.09 0.08 0.08 0.08 0.08 0.07 0.07 0.07 0.07 0.07 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Time Precip. Excess Runoff (hours) (inches) (inches) (cfs) 31.00 6.00 3.78 0.00 31.50 6.00 3.78 0.00 32.00 6.00 3.78 0.00 32.50 6.00 3.78 0.00 33.00 6.00 3.78 0.00 33.50 6.00 3.78 0.00 34.00 6.00 3.78 0.00 34.50 6.00 3.78 0.00 35.00 6.00 3.78 0.00 35.50 6.00 3.78 0.00 36.00 6.00 3.78 0.00 36.50 6.00 3.78 0.00 37.00 6.00 3.78 0.00 37.50 6.00 3.78 0.00 38.00 6.00 3.78 0.00 38.50 6.00 3.78 0.00 39.00 6.00 3.78 0.00 39.50 6.00 3.78 0.00 40.00 6.00 3.78 0.00 40.50 6.00 3.78 0.00 41.00 6.00 3.78 0.00 41.50 6.00 3.78 0.00 42.00 6.00 3.78 0.00 42.50 6.00 3.78 0.00 43.00 6.00 3.78 0.00 43.50 6.00 3.78 0.00 44.00 6.00 3.78 0.00 44.50 6.00 3.78 0.00 45.00 6.00 3.78 0.00 45.50 6.00 3.78 0.00 46.00 6.00 3.78 0.00 46.50 6.00 3.78 0.00 47.00 6.00 3.78 0.00 47.50 6.00 3.78 0.00 48.00 6.00 3.78 0.00 WELCOME AVE - PRIOR LAKE Type II 24-hr 100 YEAR Rainfall=6.00" Prepared by PIONEER ENGINEERING Page 3 HydroCAD® 6.20 sin 000895 © 1986-2003 Applied Microcomputer Systems 4/1/2003 Subcatchment 3S: DRAINAGE TO DITCH ON WELCOME AVE Runoff = 6.75 cfs @ 12.00 hrs, Volume= 0.356 af, Depth= 3.78" Runoff by SCS TR,20 method, UH=SCS, Time Span= 5.00-48.00 hrs, dt= 0.05 hrs Type II 24-hr 100 YEAR Rainfall=6.00" Area (ac) CN 0.560 61 0.570 98 1.130 80 Description GRASS/OPEN SPACE BUILDINGS/PARKING/STREET Weighted Average Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ff) (ft/sec) (cfs) 8.5 380 !0.0300 0.7 LaglCN Method, Subcatchment 3S: DRAINAGE TO DITCH ON WELCOME AVE Type II 24-hr 100 YEAR Rainfall--6.00" Runoff Area=l.130 ac Runoff Volume=0.356 af Runoff Depth=3.78" Length=380' Tc--8.5 min CN=80 5 6 7 8 9 10 11 1:!1314 15161718 192021 22 23242526 27282930 31 323334 35363738 394041 42 43444546 4748 Time (hours) WELCOME AVE - PRIOR LAKE Type II 24-hr 100 YEAR Rainfall=6.00" Prepared by PIONEER ENGINEERING Page 4 HydroCAD® 6.20 s~n 000895 © 1986-2003 Applied Microcomputer Systems 4/1/2003 Hydrograph for Subcatchment 3S: DRAINAGE TO DITCH ON WELCOME AVE Time Precip. (hours) (inches) 5.00 0.38 5.50 0.43 6.00 0.48 6.50 0.54 7.00 0.59 7.50 0.66 8.00 0.72 8.50 0.79 9.00 0.88 9.50 0.98 10.00 1.09 10.50 1.22 11.00 1.41 11.50 1.70 12.00 3.98 12.50 4.41 13.00 4.63 13.50 4.79 14.00 4.92 14.50 5.03 15.00 5.12 15.50 5.21 16.00 5.28 16.50 5.35 17.00 5.41 17.50 5.47 18.00 5.53 18.50 5.58 19.00 5.63 19.50 5.67 20.00 5.71 20.50 5.75 21.00 5.79 21.50 5.83 22.00 5.86 22.50 5.90 23.00 5.93 23.50 5.97 24.00 6.00 24.50 6.00 25.00 6.00 25.50 6.00 26.00 6.00 26.50 6.00 27.00 6.00 27.50 6.00 28.00 6.00 28.50 6.00 29.00 6.00 29.50 6.00 30.00 6.00 30.50 6.00 Excess (i ches) rl 0.00 0.00 0.00 0.00 0.00 0.01 0.02 0.03 0.05 0.08 0.11 0.16 0.24 0.39 2.02 2.39 2.57 2.71 2.82 2.92 3.00 3.07 3.14 3.20 3.25 3.31 3.36 3.40 3.45 3.49 3.52 3.56 3.59 3.62 3.66 3.69 3.72 3.75 3.78 3.78 3.78 3.78 3.78 3.78 3.78 3.78 3.78 3.78 3.78 3.78 3.78 3.78 Runoff (cfs) 0.00 0.00 0.00 0.00 0.01 0.01 0.02 0.03 0.05 0.06 0.09 0.13 0.20 0.38 6.75 0.67 0.40 0.30 0.24 0.21 0.19 0.16 0.14 0.13 0.13 0.12 0.11 0.10 0.10 0.09 0.08 0.08 0.08 0.08 0.07 0.07 0.07 0.07 0.07 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Time Precip. Excess Runoff (hours) (inches)(inches) (cfs) 31.00 6.00 3.78 0.00 31.50 6.00 3.78 0.00 32.00 6.00 3.78 0.00 32.50 6.00 3.78 0.00 33.00 6.00 3.78 0.00 33.50 6.00 3.78 0.00 34.00 6.00 3.78 0.00 34.50 6.00 3.78 0.00 35.00 6.00 3.78 0.00 35.50 6.00 3.78 0.00 36.00 6.00 3.78 0.00 36.50 6.00 3.78 0.00 37.00 6.00 3.78 0.00 37.50 6.00 3.78 0.00 38.00 6.00 3,78 0.00 38.50 6.00 3.78 0.00 39.00 6.00 3.78 0.00 39.50 6.00 3.78 0.00 40.00 6.00 3.78 0.00 40.50 6.00 3.78 0.00 41.00 6.00 3.78 0.00 41.50 6.00 3.78 0.00 42.00 6.00 3.78 0.00 42.50 6.00 3.78 0.00 43.00 6.00 3.78 0.00 43.50 6.00 3.78 0.00 44.00 6.00 3.78 0.00 44.50 6.00 3.78 0.00 45.00 6.00 3.78 0.00 45.50 6.00 3.78 0.00 46.00 6.00 3.78 0.00 46.50 6.00 3.78 0.00 47.00 6.00 3.78 0.00 47.50 6.00 3.78 0.00 48.00 6.00 3.78 0.00 WELCOME AVE. PRIOR LAKE Type II 24-hr 100 YEAR Rainfall=6.00" Prepared by PIONEER ENGINEERING Page 5 HydroCAD® 6.20 s/n 000895 © 1986-2003 Applied Microcomputer Systems 4/1/2003 Pond 1P: PONDING AT CULVERT WI4" DRAINTILE InflowArea= 1.130ac, Inflow Depth = 3.78" Inflow = ~.7~; cfs (~) '12.00 hfs, Volume= 0.3~;~ a{ Outflow = 0.19 cfs @ 14.92 hrs, Volume= 0.355 af, Primary = 0.19 cfs @ 14.92 hrs, Volume= 0.355 af Atten= 97%, Lag= 175.3 min Routing by Stor-lnd method, Time Span= 5.00-48.00 hrs, dt= 0.05 hrs Peak Elev= 3.00'@ 14.92 hrs Surf. Ama= 9,222 sf Storage= 9,321 cf Plug-Flow detention time= 538.2 min calculated for 0.355 af (100% of inflow) Center-of-Mass det. time= 536.9 min ( 1,350.3 - 813.4 ) Storage determined by Prismatic sections Elevation Surf. Area Inc. Store Cum. Store (feet) (sq-ff) (cubic-feet) (cubic-feet) 0.00 0 0 0 2.00 3,126 3,126 3,126 3.00 9,222 6,174 9,300 Primary OutFlow Max=0.19 cfs @ 14.92 hrs HW=3.00' (Free Discharge) '1' 1=Culvert (Barrel Controls 0.19 cfs @ 2.2 fps) # Routing Invert Outlet Devices 1 Primary 0.00' 4.0" x 400.0' long Culvert Ke= 0.500 Outlet Invert=-2.00' S= 0.0050 '/' n= 0.014 Cc= 0.900 Pond 1P: PONDING AT CULVERT WI4" DRAINTILE ~ 4 6 8 10 12 14 16 18 20 22 24 26 28 Time (hours) Inflow Area=l. 130 ac Peak Elev=3.00' Storage=9,321 cf 30 32 34 36 38 40 42 44 46 48 WELCOME AVE - PRIOR LAKE Type II 24-hr 100 YEAR Prepared by PIONEER ENGINEERING HydroCAD(D 6.20 s/n 000895 © 1986-2003 Applied Microcomputer Systems Rainfafl=6. 00" Page 6 4/1/2003 Hydrograph for Pond 1P: PONDING AT CULVERT WI4" DRAINTILE Time Inflow Storage Elevation Primary (hours) (cfs) (cubic-feet) (feet) (cfs) 5.00 0.00 0 0.00 0.00 6.00 0.00 0 0.00 0.00 7.00 0.01 10 0.01 0.00 8.00 0.02 59 0.04 0.00 9.00 0.05 157 0.10 0.01 10.00 0.09 287 0.18 0.04 11.00 0.20 505 0.32 0.11 12.00 6.75 4,782 2.27 0.17 13.00 0.40 8,840 2.93 0.19 14.00 0.24 9,257 2.99 0.19 15.00 0.19 9,320 3.00 0.19 16.00 0.14 9,235 2.99 0.19 17.00 0.13 9,040 2.96 0.19 18.00 0.11 8,794 2.92 0.19 19.00 0.10 8,498 2.87 0.19 20.00 0.08 8,152 2.81 0.18 21.00 0.08 7,773 2.75 0.18 22.00 0.07 7,387 2.69 0.18 23.00 0.07 6,996 2.63 0.18 24.00 0.07 6,599 2.56 0.18 25.00 0.00 5,989 2.46 0.18 26.00 0.00 5,355 2.36 0.18 27.00 0.00 4,729 2.26 0.17 28.00 0.00 4,111 2.16 0.17 29.00 0.00 3,501 2.06 0.17 30.00 0.00 2,901 1.86 0.16 31.00 0.00 2,327 1.49 0.15 32.00 0.00 1,785 1.14 0.15 33.00 0.00 1,275 0.82 0.14 34.00 0.00 796 0.51 0.13 35.00 0.00 385 0.25 0.07 36.00 0.00 220 0.14 0.03 37.00 0.00 151 0.10 0.01 38.00 0.00 115 0.07 0.01 39.00 0.00 93 0.06 0.00 40.00 0.00 78 0.05 0.00 41.00 0.00 67 0.04 0.00 42.00 0.00 58 0.04 0.00 43.00 0.00 52 0.03 0.00 44.00 0.00 47 0.03 0.00 45.00 0.00 43 0.03 0.00 46.00 0.00 39 0.03 0.00 47.00 0.00 36 0.02 0.00 48.00 0.00 33 0.02 0.00 WELCOME AVE - PRIOR LAKE Type II 24-hr 100 YEAR Prepared by PIONEER ENGINEERING HydroCAD® 6.20 sin 000895 © 1986-2003 Applied Microcomputer Systems Rainfall=6.00" Page 7 4/112003 Pond 2P: PONDING AT CULVERT W/15" CMP CULVERT InflowArea = 1.130 ac, Inflow Depth = 3.78" Inflow = 6.75 cfs @ 12.00 hrs, Volume= 0.356 af Outflow = 4.91 cfs @ 12.07 hrs, Volume= 0.356 af, Pdmary = 4.91 cfs @ 12.07 hrs, Volume= 0.356 af Atten= 27%, Lag= 4.6 min Routing by Stor-lnd method, Time Span= 5.00-48.00 hrs, dt= 0.05 hrs Peak Elev= 1.65' @ 12.07 hrs Surf. Area= 2,586 sf Storage= 2,586 cf Plug-Flow detention time= 24.4 min calculated for 0.356 af (100% of inflow) Center-of-Mass det. time= 25.2 min ( 838.6 - 813.4 ) Storage determined by Prismatic sections Elevation Surf. Area Inc. Store Cum. Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 0.00 0 0 0 2.00 3,126 3,126 3,126 3.00 9,222 6,174 9,300 Primary OutFlow Max=4.87 cfs @ 12.07 hrs HW=1.63' (Free Discharge) '~---l=Culvert (Barrel Controls 4.87 cfs @ 4.0 fps) # Routing Invert Outlet Devices 1 Primary 0.00' 15.0" x 40.0' long Culvert Ke= 0.500 Outlet Invert=-0.20' S= 0.0050 '/' n= 0.014 Cc= 0.900 Pond 2P: PONDING AT CULVERT W/15" CMP CULVERT ..~ ~ 4 6 8 10 12 14 16 18 20 22 24 26 28 30 Time (hours) Inflow Area=l. 130 ac Peak Elev=1.65' Storage=2,586 cf / 32 34 36 38 40 42 44 46 48 · Inflow [] Pdmary WELCOME AVE - PRIOR LAKE Type II 24-hr 100 YEAR Prepared by PIONEER ENGINEERING HydroCAD® 6.20 sin 000895 © 1986-2003 Applied Microcomputer Systems Rainfall=6. O0" Page 8 4/1/2003 Hydrograph for Pond 2P: PONDING AT CULVERT W/15" CMP CULVERT Time (hours) 5.00 6.00 7.00 8.00 9.00 10.00 11.00 12.00 13.00 14.00 15.00 16.00 17.00 18.00 19.00 20.00 21.00 22.00 23.00 24.00 25.00 26.00 27.00 28.00 29.00 30.00 31.00 32.00 33.00 34.00 35.00 36.00 37.00 38.00 39.00 40.00 41.00 42.00 43.00 44.00 45.00 46.00 47.00 48.00 Inflow Storage Elevation Primary (cfs) (cubic-feet) (feet) (cfs) 0.00 0 0.00 0.00 0.00 0 0.00 0.00 0.01 9 0.01 0.00 0.02 57 0.04 0.00 0.05 136 0.09 0.02 0.09 218 0.14 0.06 0.20 343 0.22 0.15 6.75 2,290 1.47 4.$1 0.40 600 0.38 0.47 0.24 447 0.29 0.26 0.19 385 0.25 0.20 0.14 344 0.22 0.16 0.13 316 0.20 0.13 0.11 298 0.19 0.12 0.10 280 0.18 0.10 0.08 259 0.17 0.09 0.08 246 0.16 0.08 0.07 241 0.15 0.08 0.07 237 0.15 0.07 0.07 233 0.15 0.07 0.00 122 0.08 0.02 0.00 80 0.05 0.01 0.00 59 0.04 0.00 0.00 47 0.03 0.00 0.00 40 0.03 0.00 0.00 33 0.02 0.00 0.00 28 0.02 0.00 0.00 23 0.01 0.00 0.00 20 0.01 0.00 0.00 16 0.01 0.00 0.00 14 0.01 0.00 0.00 12 0.01 0.00 0.00 10 0.01 0.00 0.00 8 0.01 0.00 0.00 7 0.00 0.00 0.00 6 0.00 0.00 0.00 5 0.00 0.00 0.00 4 0.00 0.00 0.00 3 0.00 0.00 0.00 3 0.00 0.00 0.00 2 0.00 0.00 0.00 2 0.00 0.00 0.00 2 0.00 0.00 0.00 1 0.00 0.00 June 21,2002 P. 1 of 2 Robert W. Johnson 5018 43rdAvenue S Minneapolis, MN 55417 Dear Mr. Johnson: The City of Prior Lake received a complaint regarding grading/filling and drainaqe issues on the property at 16860 Welcome Avenue. An inspection of the property revealed apparent violations of the Prior Lake City Code. Specifically, the following violations: Ordinance Section 1104.402: Topographic Alterations/Grading And Filling: (3) A grading and filling permit will be required for: b. The Movement of more than 50 cubic yards of material outside of steep slopes and shore and bluff impact zones. Ordinance Section 1104.403: Placement And Design Of Roads, Driveways And Parking Areas: (1) Documentation shall be provided by a qualified individual that all roads and parking areas are designed and constructed to minimize and control erosion to public waters (reads in part). o Ordinance Section 1104.306: Impervious Surface Coverage: (2) an existing site being altered, remodeled or expanded which expands the existing impervious surface coverage may be allowed where necessary, provided the site conforms to the Prior Lake Storm Water Management Plan, and is approved by the City Engineer (reads in part). This office would like to solicit your cooperation and community spirit in correcting the violation by submitting a Grading/Filling Permit Application to the Enqineerin.q Department for review on/or before July 1, 2002. Any corrective measures will be addressed at that time. If you should have any questions regarding this matter, call my direct phone number at 447-9854 between 8:00 a.m. and 4:30 p.m., Monday through Friday, and I will assist you. Enclosed is a copy of our City Codes pertaining to the violations. 16200 1~[~ Creek Ave. S.E., Prior Lake, Minnesota 55372-1714 / Ph. (952) 447-4230 / Fax (952) 447-4245 AN EQUAL OPPORTUNITY EMPLOYER P. 2of2 The City Of Prior Lake appreciates your cooperation on this matter. Sincerely, Zoning Administrator/Inspector Jhnsnl / , eerh?g Co., Inc. 237 40 EAST