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HomeMy WebLinkAbout1902824110020-11192015 (2)DRAINAGE IMPERVIOUS SURFACE COMPARISON: (TYP) EXISTING CONDITION vs PROPOSED CONDITION PLATE EXISTING (SF) PROPOSED (SF) HOUSE FOOTPRINT = 1,277 1,730 DRIVEWAY = 742 863 SIDEWALKS/STOOPS = 558 21 PATIO/DECK = 206 150 SHED = 62 62 TOTAL IMPERVIOUS SURFACE = 2,845 2,826 IMPERVIOUS SURFACE DECREASE = 19 SF (EXISTING vs PROPOSED) 2. Rock Construction Entrance shall be installed prior to grading operations. 0.7 AREA TO FRONT YARD = 2,845 2,826 AREA TO REAR YARD = 0 0 garage floor j } II Proposed Wall FENCE I' I - �% I I; -cc, poi -- II l ��■�■■■■ a - - / Proposed impervious surface is 19 sf less than existing condition. Storm water runoff and volume reduction is therefore not required for this project. LEGAL DESCRIPTION LOT 4, BLOCK 1, ELMWOOD TERRACE, HENNEPIN COUNTY, MINNESOTA PROJECT LOCATION PART OF SECTION 19, TOWNSHIP 28, RANGE 24, HENNEPIN COUNTY, MINNESOTA. SITE LEGEND: Existing Property Line ...................................................................... Existing Adjacent Property Line -------### -- -- Existing Contour w/Eley. Text ------### ----- Proposed Contour w/Elev. Text Proposed Building ■■■■■E■■EM■E■ Proposed Silt Fence 0 10 20 30 ;s Proposed Inlet Protection ��••wNe EROS/ON 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 I I jI ' ' specifications. peak 3. After completion of final grading, exposed soils must be permanently, stabilized within 72 hours. Stabilization shall ®542i _ I I t I I I consist of disc -anchored seed & mulch or sod as allowed by 6/4, �`� I I II I I I + 7+ City, or as proposed on City approved landscape plan for the ` , SILT FENCE I I I �...�........_ _ •�._...._'..�• •.. \. .._: � � I 1 I I I project. I 1 I� II I 1 I 4. The site must be kept in a well drained condition at all 0 !5� IV%'o5ure \�`� II �� 1-~� `I. i II times. The contractor shall be responsible for temporary c �,T �i �� ditches, or other means necessary to ensure proper drainage. ■R ■■■ ■i� ■■■�r■1�ii■�i�■ ■�I�■'■■■�ti■■, �� ` / _ I The building pad must be provided with a positive outflow. / ��...............- x -,_n- R _X �........X................... k _.._._._...A � X----/, X ,�, X �-X ---�- / ,179. This work shall be incidental to the grading contract. 5. Entering/exiting of the site shall occur only at rock III �X: I construction entrance to reduce tracking of dirt onto paved / t t S d' t t k d t t t d k' h i I / I I 11 I s ree s. e Imen race on o s ree s uring Vol Ing ours MIN ip1 I I must be reclaimed via street scraping and sweeping at the 6.2 ' �� I"37 1� I I I'X 1� end of each working day. ROCK I I j 87 1 "5 . I I ,% - I I I 6. Temporary dewatering pump out to be discharged to I I top wa// / . -: t- I I I ; 1 constructed Temporary Dewatering Discharge per detail this CONSTRUCTION M \ 1 -^ ^� J I I�` I sheet, or sediment filter bag constructed of min. 8oz 1 I/ , I lj �� I II 11 non -woven filter fabric, to provide silt and sediment removal II ENTRANCE I I / �� /' \ from storwater prior to discharge to appropriate drainage I \ I i �� I 1 \� l \d �F'r Cantilever J I area. 1 I I- Oll POLLUTION PREVENTION NOTES IV 1. Solid waste: collected sediment, asphalt and concrete millings, - TEMPORARY I r �� � floating debris, paper, plastic, fabric, construction debris and �... _............ i Proposed � � other wastes must be disposed of properly off-site and must I I (y� comply with MPCA requirements. � I \ 2. Hazardous materials: oils, gasoline, paint, and any hazardous ..........-_ I Residence • / ��(`+`i % substance must be properly stored, including secondary _ - - I I _ . __ - ---- - - - - l / -y- " - containment, to prevent spills, leaks or other discharge. 0 I I I I I I It - --- • STOCKPILE ...................- I \ / � � Restricted access to storage areas must be provided to prevent i' ' vandalism. Storage and disposal must be in compliance with ... I in floor) ♦ ,, 0 9 P P Landing , ---- , I / ♦ SILT FENCE .I MPCA regulations. 1` ,� (tel L •� 66,53------ SILT FENCE .•-- �� _ � ..._...._.... ..........._ f ... N STALL INLET PROTECTION IN CATCH BASIN i i 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 ' ' 3. External washing of trucks or other construction vehicles is not V--\f/� allowed on site. No engine degreasing is allowed on site. j 4. No concrete washouts are allowed on site. 3916"/ �'� J ����/,��� �8�� //'=j!j� �' �i VEG/TAT/ON GROUND COVER SCHEDULE 1. Permanent turf ground cover shall include all disturbed areas be \ in well J •-;� I covered with a minimum 4" topsoil and sodded or seeded as c: -...- 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 �/ I I/_ _ - Iii - r ..........._.. r ■ ■ ■ ■ ■ ■ ■ ■ I\ ■ ■ H 0-0,0 ■ ■ ■ ■ 10-0- �j ■ ■I■ ■ ■ ■ ■ i / applied at 100 lbs/ac. MnDOT Type 1 mulch shall be applied I/ / / / ..._._. _ / __ _- at 2 tons/ac and disc anchored in areas not covered by sod QTIi I 1 I 1 /lc dSUr " i /' /' `...,. 563,or erosion blanket. / _.._._ _-........_.-�....._.. � J I I _ I / / / / / � 3. Fertilizer shall be MnDOT Type 1 10-10-20 and applied at 200 __ _._...... -.........- -.__:1_ W S I LT FENCE 1 % 6.37 /'let i lbs/ac. Disc fertilizer into top 3" of soil. Specification �% I I / I / // j i., reference is MnDOT 2575. / 4. Dormant seed mix shall be used after November 1 or when �� I I l j j // // j i temperatures do not exceed 40° F, using some rates specified above. No seed shall be placed on snow or ice greater than r..l Rei f o.542 //l // i i i i i /i 2" in depth. 5. Any seeded areas that do not become established with vegetation shall be reseeded at Contractor's expense. I��' // /' 6. Erosion blanket shall be installed in seed areas with ground aT,3c.�e floor // // // // // // / / surface slopes of 5H: 1 V or steeper. . 4 I' 2" x 2" WOOD POSTS FILTER FABRIC 4.0' O.C. ((MIR APPROVED FENCE OR APPROVED EQUAL) MIN. 30' - MAX. 36" ABOVE GRADE DIRECTION OF DRAINAGE BACKFILL 6" x 6" TRENCH N I I UNDISTURBED SOIL SILT FENCE NOTES CG -23 HIGH-FLOW INLET INSERT 1. SILT FENCE SHALL BE BLACK IN COLOR. 2. DIG A 6"X6" TRENCH ALONG THE INTENDED FENCE LINE, OR MACHINE SLICE TO 6" DEPTH. 3. 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 LINE, AND BACK FILL. 5. 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 STORM CASTING DEFLE (TYP) PLATE Survey Data By: Benchmark: O 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 9. The Grading Contractor shall keep public streets, parking lots, and ° Lot Surveys Company Top nut of hydrant at NE FILTER ASSEMBLY OVERFLOW #2 - TOP OF CURB BOX OVERFLOW #I - CENTER OF FILTER ASSEMBLY FABRIC NOTES: 1) CONTRACTOR OPTION TO USE WIMCO INLET PROTECTION INSERT OR EQUAL. INLET PROTECTION DETAIL CLIENT: CITY HOMES DESIGN + BUILD, LLC 4220 Crocker Ave Edina, MN 55416 952-920-8250 7. Erosion control maintenance shall be performed by the Grading GRAPHIC SCALE IN FEET Contractor, and removed as per the Contract Documents or as directed by the Owner, followed by all necessary restoration of Survey Data By: Benchmark: O 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 9. The Grading Contractor shall keep public streets, parking lots, and ° Lot Surveys Company Top nut of hydrant at NE ,o construction entrance shall be performed, especially at the end of ` each day's work. 7601 73rd Avenue North corner of Halifax Avenue n o `°' c 1. Silt fence shall be installed or restored prior to any construction. Silt fence o W Minneapolis, MN 55428 and 54th. 12 t6 Q ami •O o 2. Rock Construction Entrance shall be installed prior to grading operations. 763-560-3093 Elevation = 877.0 feet 3. All storm sewer inlets shall have inlet protection inserts installed. ` c O aCZ Q� inlet protection devices as manufactured by WIMCO (or approved equal) y ` 2 o and installed per manufacture's recommendations. GENERAL GRADING NOTES: o ; C 1. Specifications applicable for this project: Current standard areas, the contractor may remove necessary silt fencing to construct roadway, C -Q) o C) specifications for the City of Edina; the latest Minnesota Department� E ai ° 6. The contractor shall schedule site grading, utility installation and site of Transportation Specifications for Highway Construction; and all construction so that the general site can be mulched and sodded or NPDES requirements except where modified by these documents. y� hours of final grading. -i 2. OSHA requirements shall be followed for all work on this project. �, EROS/ON CONTROL MAINTENANCE SCHEDULE 3. The Contractor shall notify "Gopher State One Call" 48 hours prior to (13 Cc Cl� 1. Erosion control measures shall be inspected by the contractor's representative any excavation (1-800,-252-1166.) 2 C 4. The Grading Contractor shall verify all locations and elevations of EWAN underground utilities with utility companies prior to any construction, LO and immediately notify the Engineer of any conflicts. N W 5. Final Plat shall govern for easements and lot dimensions. k�y 6. Any erosion control items necessary to protect adjacent properties shall refresh as necessary to conform to detail; inlet protection inserts - remove be constructed prior to the start of excavation or grading work. LO 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 9. The Grading Contractor shall keep public streets, parking lots, and ° travel ways clear of soil and debris. Daily cleaning at the ,o construction entrance shall be performed, especially at the end of ` each day's work. EROS/ON CONTROL INSTALLATION SCHEDULE o `°' c 1. Silt fence shall be installed or restored prior to any construction. Silt fence o W shall be located as shown to intercept runoff. The area located beyond the 12 t6 perimeter silt fence shall not be disturbed during construction. perimeter ami •O o 2. Rock Construction Entrance shall be installed prior to grading operations. vQ, k� y 3. All storm sewer inlets shall have inlet protection inserts installed. ` c Inserts shall be "Road rain -Top Slab" or "Road Drain -Curb & Gutter" aCZ Q� inlet protection devices as manufactured by WIMCO (or approved equal) y ` 2 o and installed per manufacture's recommendations. r °, 4. All erosion control installations shall remain in place and be maintained in o ; he contractor until the site has been at good condition -byre--vegetated, which time it shall be removed by the contractor. For proposed paved surface areas, the contractor may remove necessary silt fencing to construct roadway, C -Q) o 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. ai ° 6. The contractor shall schedule site grading, utility installation and site 3 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. EROS/ON 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 Z Contact information for the responsible party for erosion p control is: CITY DESIGN + BUILD, LLC - General Contractor Q< Chris Malooly - Project Coordinator 612-363-0633 phone 00 "t V) (0 N N W C) Ln 0 Z I o� c " w o �� In A I mm 6 0- C: Q) 0 3 V I a. I m 0 Q D � a chris©cityhomesllc.com I L� 11 MOLL ON na wa 11R OPIUM t'warw0 a Ir OWOCe lose Pone MW r fnn® OWD owu IROi� M FOR k FOR mm HEM TEMPORARY DEWATERING DISCHARGE DETAIL 00 r-- r m Z Q FILE NO. 00577 1 /1 Storm Water and Erosion Control Plan