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DRAWING LEGEND <br />Site Plan Approve <br />ESTIMATED BMP QUANTITIES <br />HEAVY-DUTY SILT FENCE <br />650 LF <br />ROCK CONSTRUCTION ENTRANCE <br />1 EACH <br />CONCRETE WASHOUT AREA <br />1 EACH <br />INLET PROTECTION <br />1 EACH <br />CB <br />TOP= 865.6 <br />INV= 858.7 S <br />INV=860.4 N <br />INV=862.2 E <br />JK FENCE <br />x -8-64 0- <br />860-- <br />fi85 /. <br />TC <br />866.4x <br />x 866.5 <br />866. <br />TC <br />NV=857.4 <br />857.2 <br />i5�6\ <br />_g \ <br />363.9 - <br />d 7 0.2 x <br />NORTH <br />1 <br />C402 <br />CB <br />TOP=865.7 <br />• INV= 863.0 <br />FOUND PLS 18420 <br />Oi17 N/0.15 E <br />NOTE: QUANTITIES ARE FOR INFORMATIONAL <br />PURPOSES ONLY. CONTRACTOR SHALL DETERMINE <br />FOR THEMSELVES THE EXACT QUANTITIES FOR <br />BIDDING AND CONSTRUCTION. CONTRACTOR SHALL <br />NOT RELY ON THESE QUANTITIES FOR THEIR BID <br />AND CIVIL ENGINEER IS NOT RESPONSIBLE FOR <br />COST ESTIMATES OR ACTUAL CONSTRUCTION <br />COSTS. <br />x 865.9 -86-6- <br />r-62 <br />860.1 1 <br />INV= 856.6 <br />18'RCP ST S <br />866.9 <br />TC <br />867.5 <br />867.4 TC <br />TC <br />7.2 <br />C <br />GPASS <br />.3 - 95$- 857. <br />x 866.9 <br />867.7 <br />TC <br />ACREAGE SUMMARY <br />TOTAL LOT AREA <br />10.17 ACRES <br />EXISTING IMPERVIOUS AREA <br />6.98 ACRES <br />PROPOSED IMPERVIOUS AREA <br />6.98 ACRES <br />DISTURBED AREA <br />2.40 ACRES <br />NOTE: IMPERVIOUS AREAS INCLUDE COMPACTED <br />AGGREGATE SURFACES <br />868.2 <br />x8677-1---- <br />x 866.5 _ - - - <br />756 <br />859.9 <br />868 <br />TC <br />x-86-8-0 <br />x 867.2 [oJ7)27r] <br />869.6 <br />TC <br />x 868.5 <br />6650 143rd AVE. NW <br />PID: 27-32-25-43-0018 <br />TC <br />58925 7 cl--6 � 2-5 �0- <br />x 864.6 <br />- 3. <br />870.9 <br />TC <br />� - � �� 7 0.1- <br />6-9� -4 ®8 " 4 N <br />� 1,2" PIN %,,„J <br />LC <br />DRAINAGE AND UTILITY EASEMENT PER PLAT OF GATEWAY NORTH INDUSTRIAL PARK NO 5 <br />857.2 <br />- -�5$ <br />860.1 860.2 <br />7567 <br />x 864.-864- <br />7 <br />x 870.2 <br />x 864.4 <br />-x-8 4.1 <br />x 869.4 <br />5 <br />-867H- <br />6 <br />WATER ELEVATION = 857.3 FEET <br />JULY 7, 2023 <br />859 7 x8 859.7 <br />59.7, <br />x 864.5 <br />E-B-6 E--e Fed} 0-WE D-G RCS <br />x 864.4 <br />867.0 8 1-- <br />CO/.J 0V/.J <br />86\CONCRETE <br />867.3 SUPPORTS <br />80- <br />• 86p. 0 0 <br />x 867.2 <br />x 867.3 <br />8 <br />x 868 -4 <br />867. 4- <br />11\ <br />MATCH LINE - SHEET C402 <br />MATCH LINE - SHEET C401 <br />x 8 <br />x <br />GRADING, DRAINAGE AND EROSION CONTROL PLAN <br />0 <br />20' <br />40' <br />60' <br />x 867.7 <br />x 868.0 <br />x 868 <br />i/////// <br />EXISTING BUILDING <br />x 869.5 <br />7 <br />-INSTALL IIEAVii-BUTY <br />SILT FENC-E-ALONG <br />DOWN STREAM_EDGF, <br />OF CONSTRUCTION x 863.8 x a6 3 8 <br />x 864.3 LIMITS <br />x 866.8 <br />\ <br />x 868.8 <br />/ x 884.3 <br />/ <br />// / <br />// / S T O C K P\ x881.7 <br />/ / <br />x881.6 / \ <br />x 868.6 <br />68.7 <br />/ \ x 8 8-379 <br />x 868.4 <br />868.7 <br />/ <br />(x 82.8 <br />-869- <br />x 869.5 <br />G R A S <br />867.8 <br />x 867.8 <br />868.7 <br />x 864 7 <br />PROPERTY LINE <br />59.3 <br />l/\(V=81 <br />8.2 <br />EDGE OF WATER <br />-85-7-3 <br />\-59- - - <br />x 867.6 <br />x 867.2 <br />DRAINAGE <br />OF GATEV <br />868. <br />\ <br />868.4 <br />868.7 <br />8E <br />6 <br />O O O <br />PROPERTY LINE <br />DRAINAGE AND UTILITY EASEMENT <br />PROPOSED CHAIN LINK FENCE <br />EXISTING PAVEMENT <br />PROPOSED BITUMINOUS PAVEMENT <br />- - EXISTING CONTOUR <br />+ 69.2 <br />PROPOSED CONTOUR <br />PROPOSED SPOT ELEVATION <br />ROCK CONSTRUCTION ENTRANCE <br />- - - SILT FENCE <br />8 <br />\ 0 <br />\ <br />\k 866.9 <br />867.1 <br />867.2 <br />\ KEYS <br />\WALL <br />866\7 <br />\65.4 <br />2> <br />/ /864. <br />x866.7 C-x86T1 <br />p n <br />866.8 <br />x866.9\ <br />EROSION CONTROL NOTES <br />IR . •AK <br />3 0 868.. <br />0 869.5 <br />12" A' <br />75'RCP ST <br />TON\ <br />867.2 <br />66.9 <br />E <br />868.o <br />\ <br />N17.5\ <br />1 <br />1 <br />x8 7.1 1 <br />67.0 <br />867.2, <br />1 <br />or- <br />Hr(0 <br />9 <br />I00 <br />\ <br />0 868. <br />27" OAK <br />(0O <br />cd <br />co <br />co <br />867.9 <br />TC <br />86 7.9 <br />868.0 <br />TC <br />868.5 <br />TC <br />868 6 <br />TC <br />868.6 <br />TC <br />1. BEFORE BEGINNING CONSTRUCTION, INSTALL A TEMPORARY ROCK <br />CONSTRUCTION ENTRANCE AT EACH POINT WHERE VEHICLES EXIT THE <br />CONSTRUCTION SITE. USE 2 INCH OR GREATER DIAMETER ROCK IN A LAYER <br />AT LEAST 12 INCHES THICK ACROSS THE ENTIRE WIDTH OF THE ENTRANCE. <br />EXTEND THE ROCK ENTRANCE AT LEAST 50 FEET INTO THE CONSTRUCTION <br />ZONE USING A GEOTEXTILE FABRIC BENEATH THE AGGREGATE TO PREVENT <br />MIGRATION OF SOIL INTO THE ROCK FROM BELOW. <br />2. REMOVE ALL SOILS AND SEDIMENTS TRACKED OR OTHERWISE DEPOSITED <br />ONTO PUBLIC AND PRIVATE PAVEMENT AREAS. REMOVAL SHALL BE ON A <br />DAILY BASIS WHEN TRACKING OCCURS AND MAY BE ORDERED BY CITY <br />INSPECTORS AT ANY TIME IF CONDITIONS WARRANT. SWEEPING SHALL BE <br />MAINTAINED THROUGHOUT THE DURATION OF THE CONSTRUCTION AND <br />DONE IN A MANNER TO PREVENT DUST BEING BLOWN TO ADJACENT <br />PROPERTIES. <br />3. CATCH BASIN INSERTS OR OTHER APPROVED PRODUCTS ARE REQUIRED IN <br />UNDISTURBED AREAS THAT MAY RECEIVE RUNOFF FROM THE PROJECT <br />AREA. HAY BALES OR FILTER FABRIC WRAPPED GRATES ARE NOT ALLOWED <br />FOR INLET PROTECTION. <br />4. LOCATE SOIL OR DIRT STOCKPILES NO LESS THAN 25 FEET FROM ANY PUBLIC <br />OR PRIVATE ROADWAY OR DRAINAGE CHANNEL. TEMPORARY STOCKPILES <br />LOCATED ON PAVED SURFACES MUST BE NO LESS THAN TWO FEET FROM <br />THE DRAINAGE/GUTTER LINE AND SHALL BE COVERED IF LEFT MORE THAN <br />24 HOURS. <br />5. MAINTAIN ALL TEMPORARY EROSION AND SEDIMENT CONTROL DEVICES IN <br />PLACE UNTIL THE CONTRIBUTING DRAINAGE AREA HAS BEEN STABILIZED. <br />INSPECT TEMPORARY EROSION AND SEDIMENT CONTROL DEVICES ON A <br />DAILY BASIS AND REPLACE DETERIORATED, DAMAGED, OR ROTTED EROSION <br />CONTROL DEVICES IMMEDIATELY. <br />6. DISTURBED SOIL STABILIZATION SHALL USE SEED AND MULCH, EROSION <br />CONTROL MATTING, AND/OR SODDING AND STAKING IN GREEN SPACE AREAS. <br />SEED WITH ANNUAL RYE SEED AT 60 LBS PER ACRE AND WOOD MULCH FIBER <br />AT 45 LBS PER 1,000 SF. AN EARLY APPLICATION OF GRAVEL BASE ON AREAS <br />TO BE PAVED IS RECOMMENDED TO MINIMIZE EROSION POTENTIAL. <br />7. READY MIXED CONCRETE AND CONCRETE BATCH PLANTS ARE PROHIBITED <br />WITHIN THE PUBLIC RIGHT OF WAY. ALL CONCRETE RELATED PRODUCTION, <br />CLEANING AND MIXING ACTIVITIES SHALL BE DONE IN THE DESIGNATED <br />CONCRETE MIXING/WASHOUT LOCATIONS. <br />8. CHANGES TO EROSION CONTROL PLAN MUST BE APPROVED BY THE EROSION <br />CONTROL INSPECTOR PRIOR TO IMPLEMENTATION. CONTRACTOR TO PROVIDE <br />INSTALLATION AND DETAILS FOR ALL PROPOSED ALTERNATE TYPE DEVICES. <br />9. ALL EROSION CONTROL ELEMENTS ARE TEMPORARY. CONTRACTOR TO <br />INSTALL EROSION CONTROL ELEMENTS PRIOR TO START OF LAND <br />DISTURBING ACTIVITIES, MAINTAIN IN GOOD CONDITION DURING <br />CONSTRUCTION AND REMOVE FROM THE SITE UPON COMPLETION OF FINAL <br />PAVING AND TURF ESTABLISHMENT. <br />1" = 20' (22" x 34" SHEET) <br />1" = 40' (11" X 17" SHEET) <br />PIE 1'� CE PINI <br />ASSOCIATES, INC. <br />Consulting Civil Engineers <br />9298 CENTRAL AVENUE NE <br />SUITE 312 <br />BLAINE, MN 55434 <br />TEL 763-537-1311 <br />6651 141 st AVENUE NW <br />RAMSEY, MN 55303 <br />I hereby certify that this plan or drawing was prepared <br />by me or under my direct supervision and that I am <br />a duly licensed Professional Engineer under the laws <br />of the State of Minnesota. <br />Company: PIERCE PINI 85 ASSOCIATES <br />Signed: L <br />ci„ca.\_ <br />Name: Kevin Gardner <br />Date: 09/06/2023 Reg. No: 45815 <br />Issued for Date <br />Copyright 2023 Pierce Pini & Associates, Inc. <br />Comm. No. 23-020 <br />Drawn TS <br />Checked KG <br />Date 09/06/2023 <br />City Approval <br />Drawing Title <br />GRADING, DRAINAGE <br />AND EROSION CONTROL <br />PLAN <br />C402 <br />