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GENERAL EROSION NOTES (PRELIMINARY): 1. CONSTRUCTION SHALL COMPLY WITH ALL APPUCABLE GOVERNING CODES AND BE CONSTRUCTED TO SAME. WHERE A CONFUCT EXISTS BETWEEN LOCAL JURISDICTIONAL STANDARD SPECIFICATIONS AND 000X SPECIFICATIONS, THE MORE STRINGENT SPECIFICATION SHALL APPLY. 2. 111E CONTRACTOR 15 SPECIFICALLY CAUTIONED THAT THE LOCATIONS AND /OR ELEVATIONS OF EXISTING UTILITIES AS SHOWN ON THESE PLANS ARE BASED ON RECORDS OF 111E VARIOUS UTILITY COMPANIES AND. WHERE 60551BLE, MEASUREMENTS TAKEN IN THE FIELD. THE SUBSURFACE UTUTY INFORMATION SHOWN ON THESE PLANS 15 A UTILITY OUALITY LEVEL D. THIS OUAUTY LEVEL WAS DETERMINED ACCORDING TO THE GUIDELINES OF CI /ASCE 38 -02. ENTITLED "STANDARD GUIDELINES FOR THE COLLECTION AND DEPICTION OF EXISTING SUBSURFACE UTIUTY DATA." THE INFORMATION IS NOT TO BE RELIED ON AS BEING EXACT OR COMPLETE THE CONTRACTOR MUST CONTACT ALL THE APPROPRIATE UTUTY COMPANIES AT LEAST 48 HOURS BEFORE ANY EXCAVATION TO REQUEST EXACT FIELD LOCATION OF UTILITIES. IT SHALL BE THE RESPONSIBIUTY OF THE CONTRACTOR TO RELOCATE ALL 00I511140 UTILITIES WHICH CONFUCT WITH 111E PROPOSED IMPROVEMENTS SHOWN ON THE PLANS. THE LOCATIONS OF SMALL UTUTIES SHALL BE OBTAINED BY THE CONTRACTOR BY CALLING MINNESOTA GOPHER STATE ONE CALL AT 800- 252 -1166 OR 651- 454 -0002 3. THE DESIGN SHOWN I5 BASED UPON THE ENGINEER'S UNDERSTANDING OF THE EXISTING CONDITIONS. 1111E EXISTING CONDITIONS SHOWN ON 8115 PLAN ARE BASED UPON ALTA AND TOPOGRAPHIC SURVEYS PREPARED BY XXXX DATED 00 -05 -0560. IF CONTRACTOR DOES NOT ACCEPT EXISTING TOPOGRAPHY AS SHOWN ON THE PLANS WITHOUT EXCEPTION. HE SMALL HAVE MADE. AT HIS OWN EXPENSE. A TOPOGRAPHIC SURVEY BY A REGISTERED LAND SURVEYOR AND SUBMIT IT TO THE OWNER FOR REVIEW SEE ATTACHED SURVEY SHEETS. THE GENERAL CONTRACTOR SHALL TAKE ALL PRECAUTIONS NECESSARY TO AVOID PROPERTY DAMAGE TO ADJACENT PROPERTIES DURING THE CONSTRUCTION PHASES OF THIS PROJECT. THE CONTRACTOR NALL BE HELD SOLELY RESPONSIBLE FOR ANY DAMAGES OCCURRING TO THE ADJACENT PROPERTIES DURING THE CONSTRUCTION PHASES OF THIS PROJECT. 5. THE STORMWATER POLLUTION PREVENTION PLAN ( SWPPP) IS COMPRISED OF THIS DRAWING (EROSION & SEDIMENTATION CONTROL PLAN -ESC PLAN), THE STANDARD DETAILS, 111E PLAN NARRATIVE, ATTACHMENTS INCLUDED IN THE 5(1EWORK SPECIFICATIONS SECTION 02370 ( SWPPP). PLUS THE PERMIT AND ALL SUBSEQUENT REPORTS 4140 RELATED DOCUMENTS. 6. THE CONTRACTOR SHALL BE RESPONSIBLE FOR COMPLETING & SUBMITTING THE APPLICATION FOR THE MPCA GENERAL STORMWATER PERMIT FOR CONSTRUCTION ACTIVITY. ALL CONTRACTORS AND SUBCONTRACTORS INVOLVED WITH STORM WATER POLLUTION PREVENTION SHALL OBTAIN A COPY OF THE SWPPP AND THE STATE OF MINNESOTA NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM GENERAL PERMIT (NPDES PERMIT) AND BECOME FAMILIAR WITH THEIR CONTENTS. THE SWPPP AND ALL OTHER RELATED DOCUMENTS MUST BE KEPT AT THE SITE DURING CONSTRUCTION. 7. CONTRACTOR SHALL IMPLEMENT BEST MANAGEMENT PRACTICES (BMP'5) AS REWIRED BY THE SWPPP & PERMITS. THE CONTRACTOR SHALL OVERSEE THE INSPECTION & MAINTENANCE OF THE BMP'S AND EROSION PREVENTION FROM BEGINNING OF CONSTRUCTION AND UNTIL CONSTRUCTION 15 COMPLETED. IS APPROVED 87 ALL AUTHORITIES. AND 11.15 NOTICE OF TERMINATION (NOT) HAS BEEN FILED VAIN THE MPCA BY XXXX. ADDITIONAL BMP'S SHALL BE IMPLEMENTED AS DICTATED BY CONDITIONS AT NO ADDIONAL COST TO OWNER THROUGHOUT ALL PHASES OF CONSTRUCTION. 8. BMP'S AND CONTROLS SHALL CONFORM TO FEDERAL. STATE OR LOCAL REQUIREMENTS OR MANUAL OF PRACTICE. AS APPUCA811. CONTRACTOR 514ALL IMPLEMENT ADDITIONAL CONTROLS AS DIRECTED BY PERMITTING AGENCY OR OWNER. 9. ESC PLAN MUST CLEARLY DEUNEATE ALL STATE WATERS. PERMITS FOR ANY CONSTRUCTION ACTIVITY IMPACTING STATE WATERS OR REGULATED WETLANDS MUST BE MAINTAINED ON SITE AT ALL TIMES. 10. CONTRACTOR SHALL MINIMIZE CLEARING TO THE MAXIMUM EXTENT PRACTICAL OR AS REOUIRED BY THE GENERAL PERMIT. THE BOUNDARIES OF 111E CLEARING OMITS SHOWN ON THIS PLAN SHALL BE CLEARLY DELINEATED (E.G. WITH FLAGS. STAKES. SIGNS. SILT FENCE. ETC.) ON THE DEVELOPMENT SITE BEFORE WORK BEGINS. 11. GENERAL CONTRACTOR SHALL DENOTE ON PLAN THE TEMPORARY PARKING AND STORAGE AREA WHICH SHALL ALSO BE USED AS 111E EQUIPMENT MAINTENANCE AND CLEANING AREA, EMPLOYEE PARKING AREA, AND AREA FOR LOCATING PORTABLE FACIUTIES. OFFICE TRAILERS, AND TOILET FACIUTIES. 12. ALL WASH WATER (CONCRETE TRUCKS, VEHICLE CLEANING. EQUIPMENT CLEANING, ETC.) MUST BE UNITED TO A DEFINED AREA OF THE SITE AND SHALL BE CONTAINED AND PROPERLY TREATED OR DISPOSED. NO ENGINE DEGREASING IS ALLOWED ON SITE. 13. SUFFICIENT OIL AND GREASE ABSORBING MATERIALS AND FLOTATION BOOMS SHALL BE MAINTAINED ON 517E OR READLY AVAILABLE TO CONTAIN AND CLEAN -UP FUEL OR CHEMICAL SPILLS AND LEAKS. 14. DUST ON THE SITE SHALL BE CONTROLLED. THE USE OF MOTOR OILS AND OTHER PETROLEUM BASED OR TOXIC UOUIDS FOR DUST SUPPRESSION OPERATIONS 15 PROHIBITED. 15. SOUS WASTE: COLLECTED SEDIMENT, ASPHALT & CONCRETE MIWNGS, FLOATING DEBRIS, PAPER, PLASTIC, FABRIC. CONSTRUCTION & DEMOLITION DEBRIS & OTHER WASTES MUST BE DISPOSED OF PROPERLY & MUST COMPLY WITH MPCA DISPOSAL REQUIREMENTS. 16. HAZARDOUS MATERIALS: OIL GASOLINE, PAINT & ANY HAZARDOUS SUBSTANCES MUST BE PROPERLY STORED, INCLUDING SECONDARY CONTAINMENT. TO PREVENT SPILLS. LEAKS OR OTHER DISCHARGE. RESTRICTED ACCESS TO STORAGE AREAS MUST BE FRONDED TO PREVENT VANDALISM. STORAGE & DISPOSAL OF HAZARDOUS WASTE MUST BE IN COMPUANCE WATH MPCA REGULATIONS. 17. ALL STORM WATER POLLUTION PREVENTION MEASURES PRESENTED ON THIS PLAN. AND IN THE SWPPP, SHALL BE INITIATED AS SOON AS PRACTICABLE AND PRIOR TO ANY SIIEWORK. 18. DISTURBED PORTIONS OF THE SITE WHERE CONSTRUCTION ACTIVITY HAS STOPPED SHALL BE TEMPORARILY SEEDED. SEEDING SHALL BE IN ACCORDANCE WITH MN/DOT SPEC. 22075 0 100LBS /ACRE (0R APPROVED EQUAL) AND IN ACCORDANCE WITH THE FOLLOWING GUIDELINES: TYPE OF SLOPE STEEPER THAN 3:1 10:1 TO 3:1 FLATTER THAN 10:1 TIM. (MAX TIME AN AREA CAN REMAIN OPEN WHEN 711E AREA IS NOT ACTIVELY BEING WORKED) 7 DAYS 14 DAYS 21 DAYS 19. DISTURBED PORTIONS OF THE 517E WHERE CONSTRUCTION ACTIVITY HAS PERMANENTLY STOPPED SHALL BE PERMANENTLY SEEDED. THESE AREAS SHALL BE SEEDED IN ACCORDANCE 'MTH THE TIME TABLE DESCRIBED ABOVE. REFER TO THE GRADING PLAN AND/OR LANDSCAPE PLAN FOR VEGETATIVE COVER. 20. CONTRACTORS OR SUBCONTRACTORS WILL BE RESPONSIBLE FOR REMOVING SEDIMENT FROM CONVEYANCES & FROM TEMPORARY SEDIMENTATION BASINS THAT ARE TO BE USED AS PERMANENT WATER QUALITY MANAGEMENT BASINS. SEDIMENT MUST BE STABILIZED TO PREVENT IT FROM BEING WASHED BACK INTO THE BASIN, CONVEYANCES. OR DRAINAGEWAYS DISCHARGING OFF -SITE OR TO SURFACE WATERS. THE CLEANOUT OF PERMANENT BASINS MUST BE SUFFICIENT TO RETURN THE BASIN TO DESIGN CAPACITY. 21. ON -SITE & OFF -SITE SOIL STOCKPILE AND BORROW AREAS SHALL BE PROTECTED FROM EROSION AND SEDIMENTATION THROUGH IMPLEMENTATION OF BMP'S. STOCKPILE AND BORROW AREA LOCATIONS SHALL BE NOTED ON THE SITE MAP AND PERMITTED IN ACCORDANCE MTH GENERAL PERMIT REQUIREMENTS. 22 TEMPORARY SOIL STOCKPILES MUST HAVE SILT FENCE OR OTHER EFFECTIVE SEDIMENT CONTROLS & CANNOT BE PLACED IN SURFACE WATERS, INCLUDING STORMWATER CONVEYANCES SUCH AS CURB & GUTTER SYSTEMS OR CONDUITS & DITCHES. 23. SLOPES SHALL BE LEFT IN A ROUGHENED CONDITION DURING THE GRADING PHASE TO REDUCE RUNOFF VELOCITIES AND EROSION. 24 DUE TO THE GRADE CHANGES DURING THE DEVELOPMENT OF THE PROJECT, THE CONTRACTOR SHALL BE RESPONSIBLE FOR ADJUSTING 111E EROSION CONTROL MEASURES (SILT FENCES. INLET PROTECTION. ETC.) TO PREVENT EROSION. 25. ALL CONSTRUCTION SHALL BE STABILIZED AT THE END OF EACH WORKING DAY, THIS INCLUDES BACKF1WNG OF TRENCHES FOR UTUTY CONSTRUCTION AND PLACEMENT OF GRAVEL OR BITUMINOUS PAVING FOR ROAD CONSTRUCTION. 5" CASTING (SEE SCHEDULE) FULL BED OF MORTAR BETWEEN RINGS, AND A 6" COLLAR ON THE OUTSIDE OF THE RINGS. MINIMUM OF 2. MAXIMUM OF 4 \ CONCRETE ADJUSTING RINGS `6' PRECAST REINFORCED CONCRETE SLAB R.C.P. INVERT R.C.P. SUMP SUMPS TO BE PLACED IN LOCATIONS AS NOTED ON PLANS AND AS DIRECTED BY ENGINEER. CATCH BASIN MANHOLE WITH 2' MIN. SUMP 140 SCALE REV 7 -05 BURY END INTO SIDESLOPE 1 _A 6° FIR PO RY) 2 "x 12" 0(9504 IO LUMBER WOOD FIBER BLANKET MNDOT 3855, TYPE HV 891.0 BASIN FLOOR 4:1 SIDESLOPE PLAN VIEW 5 FLOW 4:1 SIDESLOPE 2° X 20" DIMENSION LUMBER BURY INTO SIDESLOPE GRADING NOTE_ FLA1Fn TO INFILTRATION BASINS (BASIN 4P AND NW CELL)- 1. THE INFILTRATION BASIN SHALL BE EXCAVATED TO NO LOWER THAN 0.5 FOOT ABOVE FINISHED GRADE DURING CONSTRUCTION ACTIVITY PATH THE EXCEPTION OF INSTALLATION OF THE FLARED END 5ECTION. ONCE STREET AND UTILITY CONSTRUCTION CEASES, BASINS SHALL BE EXCAVATED TO FINISHED GRADE. 2. HEAVY MACHINERY SHALL NOT BE ALLOWED TO TRAVEL WITHIN THE 945114 AREA. BASIN SHALL BE PROTECTED BY SILT FENCE DURING CONSTRUCTION OF STREETS AND UTIUTIES. EXCAVATION OF BASIN SHALL BE PERFORMED BY USE OF BACKHOE OR SKIOST5ER. ALL DEPOSITED SEDIMENT DURING CONSTRUCTION ACTIVITY SHALL BE PROPERLY DISPOSED OF DOWNSTREAM OF BASIN AREA. 2. INCOMING STORM INVERTS AND CATCH BASINS ROUTIN0 TO BASIN SHALL HAVE UPSTREAM INLET PROTECTION (SEE GRADING DETAIL) PLACED UNTIL STREET AND UTILITY CONSTRUCTION ACTIVITY CEASES AND 'FINAL STABUZATION" OF THE BASIN FLOOR HAS OCCURED. BASIN INLET FLARED END SECTION RIP -RAP SHALL BE PLACED AND SECURED TO THE SATISFACTION OF CITY ENGINEER. ENERGY DISSIPATER BAFFLE SECTION (SEE DETAIL) SHALL BE INSTALLED IMMEDIATELY UPSTREAM OF FES. 3. ABOVE THE BASIN OUTLET OR OVERFLOW ELEVATION. INCLUDING THE BERM AND EMBANKMENT AREAS, A MINIMUM OF 4" (6' AVERAGE DEPTH) ORGANIC/TOPSOIL MATERIAL SHALL BE PLACED TO THE FINISHED GRADE ELEVATION. TOPSOIL SHALL MEET 1ANDOT TOPSOIL SPEC 3877.2 -8 SELECT TOPSOIL BORROW REQUIREMENTS. MNDOT SEED MIXTURE 260 (COMMERCIAL TURF) SHALL BE APPUED AT A RATE OF 100 LBS /ACRE. MIXTURE APPUCATION PROCEDURES SHALL FOLLOW 'ESTABLISHING GENERAL SEED MIXTURES" RECOMMENDATIONS FOUND IN THE 2003 MNDOT SEEDING MANUAL 4 BELOW TI-15 BASIN OUTLET OR OVERFLOW ELEVATION. INCLUDING BASIN FLOOR, A MINIMUM OF 2" ORGANIC/TOPSOIL MATERIAL SHALL BE PLACED TO THE FINISHED GRADE ELEVATION. TOPSOIL SHALL MEET MNDOT TOPSOIL SPEC 3877.2 -8 SELECT TOPSOIL BORROW REQUIREMENTS. THE BASIN FLOOR AND SIDESLOPES (8EL0W OVERFLOW ELEVATION =EL 892.5 BASIN 4P, F1,895.5 NW CELL) WITH A MNDOT SEED MIXTURE 310 (NATIVE WET TAU) AT A RATE OF 82 LBS /ACRE. MIXTURE APPLICATION PROCEDURES SHALL FOLLOW "ESTABLISHING NATIVE GRASSES AND FORKS" RECOMMENDATIONS FOUND IN THE 2003 MNDOT SEEDING MANUAL BASIN FLOOR EXCAVATING, TOPSOIL PLACEMENT. AND SEEDING SHALL TAKE PLACE AM BASIN SIDESLOPES (ABOVE OVERFLOW ELEVATION) HAVE UNDERGONE 'FINAL STABUZATION ". ANY EXCAVATED BASIN MATERIAL SHALL BE DISPOSED OF DOWNSTREAM OF BASIN AREA. EXISTING DITCH OUTLET STRUCTURE NO SCALE REV 7 -05 TRASH GUARDS WALL BE REOUIRED ON 18' OR LARGER PIPES. IN PLACE O TRASH GUARDS, ENERGY DISSIPA'ORS (MN/DOT STANDARD PLATE N0. 5201 8) MAY BE USED. x 6" FIR POST (BURY) GEOFABRIC REQUIRED UNDER BURY END INTO BANK RIPRAP (MIRAF1 500 OR EQUAL). 2" X 12" DIMENSION LUMBER (BURY INTO SIDESLOPE) MINIMUM 4 INCHES (TYP. ) BASIN BERN EL. 893.0 ON LUMBER 1.5" FILTER AGGREGATE TO BE A FREE DRAINING PRODUCT. EXCLUDING CRUSHED CARBONATE QUARRY ROCK, CRUSHED CONCRETE & SALVAGED BITUMINOUS MIX. (MIN. 6" DEPTH) (MNDOT 3149.2H) AGGREGATE TO BE APPLIED ON OUTLET BOTTOM AND SIDE SLOPES BURY MN00T 3733, TYPE V 18" BURY (MIN.) GEOTEXTILE FABRIC 6 "x 6" FIR POST SECTION VIEW NOTE: - FASTENERS SHALL BE GALVANIZED BOLTS WITH WASHERS AND NUTS. - PRESSURE TREATING PER MN /DOT SPEC. #3491 BASIN 4P BAFFLED WEIR (POND OUTLET) NO SCALE REV 9-05 HAND -PLACED RIPRAP. 1 FOOT DEEP RIPRAP REQUIRED 54" & Over 36' to 4B' 27' to 33' 24' & Less NOTE 1(0 LAST 3 JOINTS ON 151E1" AND OUTLET'. IF NO APRON 15 USED. DE LAST 3 SECTIONS OF PIPE USE 2 TIE BOLT FASTENERS PER JOINT INSTALLED AT 60° FROM TOP OR BOTTOM OF PIPE. USE 5/8' TIES FOR PIPE SIZES 12' TO 27' . USE 3/4' TE5 FOR PIPE SIZES 30' TO 66'. USE 1' TIES FOR PIPE SIZES OVER 72'. NUTS AND WASHERS ARE NOT REQUIRED ON PIPE SIZES LESS THAN 21'. SIZE OF PIPE CU. YDINDIMDUAL STONES. EXCEPT THOSE USED FOR CHINKING. 20 -24 SHALL NOT WEIGHT LESS THAN 50 LBS. EACH 10-13 6 -8 4-6 NOTE: One Ca.04. is approximatey 1.4 tons PLACE RIPRAP AROUND SIDES AND OVER TOP OF FLARED END SECTIONS. 517E OF 14144E BARS 5503 6 MAX, T 12" TO 18' 21" TO 42' 46' TO 72" I:" 4L. 4' 1' O' 6' t -Y." 1' 12' PROVIDE 3 CUPS TO FASTEN TRASH GUARD TO F.E.S. HOT DIP GALVANIZE FTER FABRICATION. FLARED END SECTION NO SCALE REV 7 -05 1 0" T REINFORCED CONCRETE PIPE ENERGY DISSIPATER BAFFLE SECTIONS STANDARD LENGTH 11E ROD EXTRA LENGTH TIE ROD 2K' BAFFLE RING RTC BAFFLE RINGS STD. LENGTH + 1 SIRMIS MMAITS591ea11il6 1,18 ll®eFGiQ"I Sled - _ -.... TQ➢4Hm1a PPE _,_',, 1.0. 0.0. A 1 1 1 FLO 11IWEIPIMMHWDFARBMrZBOMMNi1a• EadiRL7L&iffia _,MIEB16IMMOFPdiff:.:.: POUNDS ....: F-L�I TYPICAL INSTALLATION - PLAN VIEW END VIEW 0 47: SECTION VIEW Notes: Energy dissipater baffles are installed in the pipe tine to reduce the Outlet • flow veloaty in the tine. BaIDe rings conform to the materiel strength and requirements of the pipe line end am usually specified in sets of tour, '2K' DESIGN PIPE SIZE WEIGHT L 1.0. 0.0. A B C N M POUNDS INCHES INCHES INCHES INCHES 2K FEET 2K INCHES INCHES INCHES 2K INCHES 2K 18 290 4 12 23 1 3 3 7 8 24 450 4 18 30 1 3 3 7 8 30 790 4 18 37 1 3 8 9 10 12 Copyright 02001 The CreteX Companies, Inc. All rights reserved. Information an this 5000RI8re to subject to change Without notice. BASIN FES A FES C PIPE SIZE 18 24 FES D 24' FESE 18' IOWA CONCRETE PRODUCTS CO. WEST DES MOINES, IOWA REINFORCED CONCRETE PIPE ENERGY DISSIPATER BAFFLE SECTIONS v +` NOT TO SCNEFa DEC. 1. 2001 Imo` ...ICPCRCPDISE DIRECTION OF STREET SLOPE ROW LINE -// LOT LINE II CENTERUNE GRADE BREAK (1 MIN. OFFSET FROM BACK OF CURB) CURB 5 MIN. SETBACK FROM BACK OF 0168 ` RAINGARDEN DIMENSIONS 5' X 10' (APPROX) 0.5 TO 2.05 CROSS SLOPE DIRECTION OF DRAINAGE (TYP.) GARAGE/BUILDING UNE 1 QIESL 1. GRADE RAINGARDEN BOTTOM TO SPOT ELEVATION SHOWN CN GRADING PLAN. 2. GRADE RAINGARDEN SIDESLOPES NO STEEPER THAN 3:1 HORIZONTAL TO VERTICAL 3. 0EPTH OF RAINGARDEN SHALL NOT EXCEED I' FROM BOTTOM TO OVERFLOW ELEVATION 4. RAINGAROENS SHALL NOT EXTEND BETWEEN LOT UNES. 5. GRADE BREAKS LOCATED IN DRIVEWAY NEAR CURB LINE SHALL HAVE NO SLOPE STEEPER THAN 105° 6. CONSULT 'PLANTS FOR STORMWATER DESIGN" MANUAL BY THE MPCA FOR PLANTING RAINGARDEN FLOOR AREA. TYPICAL LOT RAINGARDEN GRADING NO SCALE REV 1 -06 L LOT LNE ROW UNE L,J LLJ V) LLJ CI- L.1_1 2 .0 Nei 01 .5 m 5 0 sr 0 0 m O 2 m W L3 co m 0 N I ircnen H 2181S • SHEET NUMBER C.5.02 ft MFRA FIE ; 15269