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HomeMy WebLinkAbout1902824240001-09052014S S -S -S tcc pc tcc pG 690.12 889.66 s l 2"'VC �nitarewer S s S s s - S S S Tower Street INSTALL INLET PROTECTION IN 1 CATCH BASIN AT SE CURB RETURN ON TOWER STREET AT FAIRFAX AVENUE INTERSECTION. tcc pG tcc I tcc pG i 669,02 888, SILT FENCE 88 7. oo INSTALL - - _ _We INSTALL DRAINTILE ROCK �,'„ _ ``�� - �_ ��. DRAINTILE POP --UP .2 = CONSTRUCTION 6 41 5-94 mean POP --UP OUTLET Z ENTRANCE _ -- ` ` �, OUTLET NEAR CUR =� ° �� `�� NEAR CURB Q I vJ \ \ SILT FENCE STOCKPILE ° - . \ ,,, ' �'•, SILT FENCE 893 \ 89 �♦ .... TEMPORARY I \ i ,etba k Llne f \ STOCKPILE o • 2,9 i \ • v Lo 893. � `• _ - 89 \ .............. I ....... ........... T Porch � I garage floor r-- 0 (594.1 roof peak _ I o61 923.2 &17 i Proposed PE TE P ORA D rOMe PERFORATED I Re5/denCe Lr) DRAINTILE DRAINTILE ■ 1 UAIDERDRAIN UNDERDPA11V V\1-- __ i PROPOSED ELEVATIONS: O 1 GARAGE FLOOR= 893.7 / LOWEST FLOOR= 883.7 F. P. FIRST FLOOR=893.9 -) 693.4 l TOP OF FOUNDATION=893.4 Cant I n l AVE. FRONT GRADE= 893.2 893.3 ' T AVE. REAR GRADE= 892.9 Z/ •,■ EgreSs i l,r 1 893.8 Ui/elI 5.1K_Z x 890.2 � l �� ( Patio Ix i I SILT FENCE 893.2 i I V. ........ .. I L_ _ _ J I Chaln Llnk 8� .9� X Fence / T P. STOCKPILE ■ / /// / � l SILT FENCE x � f SILT FENCE /.�% TEMPORARY `� � i "STOCKPILE PROPOSED SOIL i AMENDMENT ► I AREA 1,236 SF; __- trQe6" �I SEE DETAILS G ON SHEET 2 - .■ / Overhead Wlre3 _ _��'ower _._. _._. �'� Pole W...�_W w W W -�ht --1 W __ W W W W W -----W- -- x x x X ��i� ■'� ri � U.Llx�l ■,1�,� ■JI x - - -x x x x 89 / ♦ i -- - N 89046'35" W 79»43 meas- _ - - 889.7 , x _ Chain Llnk WOOLY 8p� Pence f�enGe LEGAL DESCRIPTION SEE SURVEY SITE LEGEND: ----,- Existing Property Line Existing Adjacent Property Line PROJECT LOCATION -_ ----## ----- Existing Contour w/Elev. Text PART OF SECTION 19, TOWNSHIP 28, RANGE 24, ---### ----- Proposed Contour w/Elev. Text HENNEPIN COUNTY, MINNESOTA. Proposed Building ■■m■mmmuno■m■ Proposed Silt Fence pY.IN� Proposed Inlet Protection EROSION CONTROL NOTES 1. All devices necessary to control erosion and sediment (I.E. perimeter silt fence, rock construction entrances, swales, ponds, berms, ETC.) shall be installed prior to any other construction operations. 2. Temporary erosion control soil stabilization shall be completed within 72 hours of disturbed areas that are to remain fallow and in an unfinished temporary condition. Temporary stabilization to be completed in compliance with MnDOT 2575 specifications. 3. After completion of final grading, exposed soils must be permanently stabilized within 72 hours. Stabilization shall consist of disc -anchored seed & mulch or sod as allowed by City, or as proposed on City approved landscape plan for the project. 4. The site must be kept in a well drained condition at all times. The contractor shall be responsible for temporary ditches, or other means necessary to ensure proper drainage. The building pad must be provided with a positive outflow. This work shall be incidental to the grading contract. 5. Entering/exiting of the site shall occur only at rock construction entrance to reduce tracking of dirt onto paved streets. Sediment tracked onto streets during working hours must be reclaimed via street scraping and sweeping at the end of each working day. 6. Temporary dewatering pump out to be discharged to constructed Temporary Dewatering Discharge per detail this sheet, or sediment filter bag constructed of min. 8oz non -woven filter fabric, to provide silt and sediment removal from storwater prior to discharge to appropriate drainage area. 1 IV G _11- 1-11 NOTES: ROCK SIZE SHOULD BE 1" TO 2" IN SIZE SUCH AS MN/DOT CA -1 OR CA -2 COURSE AGGREGATE. (WASHED) A GEOTEXTILE FABRIC MAY BE USED UNDER THE ROCK TO PREVENT MIGRATION OF THE UNDERLYING SOIL INTO THE STONE. ROCK CONSTRUCTION ENTRANCE DETAIL �VW �� S SOD GRASS TURF W W WELLECT GRANULAR AGGREGATE TOPSOIL MN/DOT 3149.2132 COURSE FILTER o . ' ' o. AGGREGATE 6„o o:.�o. p MN/DOT 3149.2H e TRENCH LINED WITH DEPTH oz p'•, p ..Q: WOVEN TYPE GEOTEXTILE -N + a �:. FILTER FABRIC 4" HDPE PERFORATED PIPE 0.5' 2 MAX. 1.0' PERFORATED DRAINTILE UNDERDRAIN TYPICAL DETAIL 2' x 2' WOOD POST: 4.0' O.C. POLLUTION PREVENT/ON NOTES 1. Solid waste: collected sediment, asphalt and concrete millings, floating debris, paper, plastic, fabric, construction debris and other wastes must be disposed of properly off-site and must comply with MPCA requirements. 2. Hazardous materials: oils, gasoline, paint, and any hazardous substance must be properly stored, including secondary containment, to prevent spills, leaks or other discharge. Restricted access to storage areas must be provided to prevent vandalism. Storage and disposal must be in compliance with MPCA regulations. 3. External washing of trucks or other construction vehicles is not allowed on site. No engine degreasing is allowed on site. 4. No concrete washouts are allowed on site. VEG/TAT/ON GROUND COVER SCHEDULE 1. Permanent turf ground cover shall include all disturbed areas be covered with a minimum 4" topsoil and sodded or seeded as allowed by City, or as proposed on City approved landscape plan for the project. 2. Temporary ground cover shall be MnDOT seed mix 150 shall be applied at 100 lbs/ac. MnDOT Type 1 mulch shall be applied at 2 tons/ac and disc anchored in areas not covered by sod or erosion blanket. 3. Fertilizer shall be MnDOT Type 1 10-10-20 and applied at 200 lbs/ac. Disc fertilizer into top 3" of soil. Specification reference is MnDOT 2575. 4. Dormant seed mix shall be used after November 1 or when temperatures do not exceed 40• F, using some rates specified above. No seed shall be placed on snow or ice greater than 2" in depth. 5. Any seeded areas that do not become established with vegetation shall be reseeded at Contractor's expense. 6. Erosion blanket shall be installed in seed areas with ground surface slopes of 5H:1 V or steeper. !3 SILT FENCE NOTES: 1. SILT FENCE SHALL BE BLACK IN COLOR. 2. DIG A 6'X6' TRENCH ALONG THE INTENDED FENCE UNE, OR MACHINE SLICE TO 6' DEPTH. A DRIVE ALL POSTS INTO THE GROUND AT THE DOWNHILL SIDE OF THE TRENCH. 4. LAY OUT SILT FENCE ON THE UPHILL SIDE ALONG THE FENCE UNE. AND BACK FiLL S. WOOD POSTS MAY BE SPACED UP TO 4 FEET APART TO SUPPORT THE FABRIC. 6. REMOVE SILT FENCE AFTER TURF IS ESTABLISHED. SILT FENCE DETAIL NMM- 1: OWALL. ON FLAT (TRADE FOR OPIUM PERFORMAIM 2. 12' DLAMETER FILTER $00K MAY BE SUCKED ONTO DOUBLE 12" DIA10 R SOCkS IN IMM4 QAL CONFIGURATION FOR ADDED HEI,W. NOTES: 1) CONTRACTOR OPTION TO USE WIMCO INLET PROTECTION INSERT OR EQUAL. INLET PROTECTION DETAIL MAIOMUM DEPTH CIF DISpIAROE WATER IS 5Ox OF FNTER RR#iT MWr $TAKES Ir INAMETER SOCK COMPOSE FtTER 9ECT16N NTS TEMPORARY DEWATERING DISCHARGE DETAIL WY DEWATE!" I FILTER RiNf; DECK. (COMPOST 4 Fr OVERLAPSIDE OF FILTER YOU!' AT MiNIMUM TER CIRCLE � FFICE 0 10 20 30 GRAPHIC SCALE IN FEET Survey Data By: Benchmark: Lot Surveys Company Top nut of hydrant at the 7601 73rd Avenue North Northeast quadrant of Tower Minneapolis, MN 55428 Street & Concord Avenue. 763-560-3093 Elevation - 910.08 feet GENERAL GRADING NOTES: 1. Specifications applicable for this project: Current standard specifications for the City of Edina; the latest Minnesota Department of Transportation Specifications for Highway Construction; and all NPDES requirements except where modified by these documents. 2. OSHA requirements shall be followed for all work on this project. 3. The Contractor shall notify "Gopher State One Call" 48 hours prior to any excavation (1-800-252-1166.) 4. The Grading Contractor shall verify all locations and elevations of underground utilities with utility companies prior to any construction, and immediately notify the Engineer of any conflicts. 5. Final Plat shall govern for easements and lot dimensions. 6. Any erosion control items necessary to protect adjacent properties shall be constructed prior to the start of excavation or grading work. 7. Erosion control maintenance shall be performed by the Grading Contractor, and removed as per the Contract Documents or as directed by the Owner, followed by all necessary restoration of disturbed area. 8. The Grading contractor shall provide positive drainage on the site at all times. Grading' tolerances shall be 0.10' for hard surface areas. Grading tolerances for the remainder of the site shall be 0.25'. 9. The Grading Contractor shall keep public streets, parking lots, and travel ways clear of soil and debris. Daily cleaning at the construction entrance shall be performed, especially at the end of each day's work. EROSION CONTROL INSTALLATION SCHEDULE 1. Silt fence shall be installed or restored prior to any construction. Silt fence shall be located as shown to intercept runoff. The area located beyond the perimeter silt fence shall not be disturbed during construction. 2. Rock Construction Entrance shall be installed prior to grading operations. 3. All storm sewer inlets shall have inlet protection inserts installed. Inserts shall be "Road rain -Top Slab" or "Road Drain -Curb & Gutter" inlet protection devices as manufactured by WIMCO (or approved equal) and installed per manufacture's recommendations. 4. All erosion control. installations shall remain in place and be maintained in good condition by the contractor until the site has been re -vegetated, at which time it shall be removed by the contractor. For proposed paved surface areas, the contractor may remove necessary silt fencing to construct roadway, while maintaining adequate erosion control in adjacent areas. 5. Sufficient topsoil shall be stockpiled to allow for the replacement of 4" topsoil for disturbed areas to be re -vegetated. 6. The contractor shall schedule site grading, utility installation and site construction so that the general site can be mulched and sodded or re -seeded as soon as possible soon after disturbance. Areas that will not be subject to construction traffic shall be seed and mulched or sodded within 72 hours of final grading. EROSION CONTROL MAINTENANCE SCHEDULE 1. Erosion control measures shall be inspected by the contractor's representative and maintained by the contractor every Friday and within 24 hours after any rainfall event larger than 1/2" until the project is completed. Maintenance requirements are as follows: silt fence - 1/3 height of fence or damaged, remove sediment and/or repair fence within 24 hours; rock entrance - refresh as necessary to conform to detail; inlet protection inserts - remove sediment after each rain event, clean or replace filter when clogged; surface water - drain and stabilize, within 72 hours of discovery, street sweeping - remove all sediment tracked onto paved surfaces within 24 hours or as directed by City Engineer. 2. Replacement - Fabric shall be replaced promptly when it decomposes or becomes ineffective before the barrier is no longer necessary. 3. Any sediment remaining in place after silt fence is no longer required shall be dressed to conform with the existing grade, prepared, and seeded with appropriate seed mix, as directed by the engineer. 4. Removal of the silt fence- Silt fences shall be removed when they have served their useful purpose, but not before the upward sloping area has been permanently stabilized. RESPONSIBLE PARTY Contact information for the responsible party for erosion control is: CITY DESIGN + BUILD, LLC - General Contractor Shawn Michlitsch - Project Manager 651-497-8062 mobile shown@cityhomeslic.com DRAINAGE AREA HARD SURFACE COMPARISON: Rear yard area proposed hard EXISTING CONDITION vs PROPOSED CONDITION 4220 Crocker Ave surface is 543 sf larger than 952-920-8250 EXISTING (SF) PROPOSED (SF) existing condition. HOUSE FOOTPRINT = 1,636 2,707 � DRIVEWAY = SIDEWALKS/STOOPS = 732 159 753 67 Rear yard area storm water runoff PATIO = 0 196 and volume reduction proposed by � m cc soil amendment based on guidance TOTAL HARD SURFACE = 2,527 3,723 from MPCA Minnesota Storm Water Manual and other sources. HARD SURFACE INCREASE = 1,196 SF (EXISTING vs PROPOSED) 47.3 Proposed soil amendment area to a ` 0 provide runoff and volume control Q is Cl) r Zi equivalent to 1.14 inch rainfall AREA TO FRONT YARD = 1,565 2,218 event on 543 sf hard surface area. AREA TO REAR YARD = 962 1,505 (1,236sf x 0.5inch / 543sf = 1.14inch) CLIENT: CITY HOMES DESIGN + BUiLD, LLC 4220 Crocker Ave Edina, MN 55416 952-920-8250 a � za � m cc Z w a ` 0 C Q is Cl) r Zi Ito W a W o c c�•o 3 •� Co �- N i(NO N 4J w W W �7 (O U oI 0 o CL CLC:S 13 ,� � � Lo c 0 C 3 o ° V (Do ZECL � � 1 I 00 a, o v r„ J v Q II V W •-Z a _J " Q O II � N © U z^d V_ (110 0 Q 00 O 00 O m U LJLLJQ O 1 Q (ZI V FILE NO. 00509 -112 Storm Water and Erosion Control Plan ©0 ' 0-r '24 • ©® (o �j fiowerz•. 54-