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86886 <br />8 <br />869 <br />871 <br />869 <br />870872 <br />86 <br />9869 868868867868 <br />869 <br />870 <br />870869 869871.5 <br />871.5871.5871.5871.5871.5 <br />871 <br />870 <br />871 <br />870 <br />871 <br />871 <br />871 870 <br />871868869870871 <br />869 868 <br />869 869 <br />871 <br />869869868 8 <br />7 <br />0868868 <br />868867 <br />868 <br />869 <br />870870 <br />8 <br />6 <br />9 <br />8718718 <br />7 <br />0 <br />871 <br />869 <br />8708 <br />7 <br />1 <br />870871869 <br />870 <br />871 <br />86 <br />6 <br />8 <br />6 <br />7 <br />8 <br />6 <br />9 <br />869 <br />868 <br />868 <br />8688 <br />6 <br />9 <br />869869 <br />86 <br />9 <br />869869 <br />869 <br />8 <br />6 <br />9868869 <br />869 <br />869 <br />869 <br />86 <br />9 <br />86 <br />9 868867868869869868870 <br />870870869 8688698688698 <br />6 <br />7 <br />871 <br />871 <br />87 <br />1 <br />869 <br />87 <br />1 871871 <br />871 <br />872871 <br />871 <br />869 <br />869 <br />8698 <br />6 <br />9 <br />86 <br />9 <br />8 <br />6 <br />9 <br />870 8698 <br />6 <br />9 <br />869869869 <br />871 <br />QUEEN ST NW186TH LN NW <br />186TH AVE NW <br />US HI <br />G <br />H <br />W <br />A <br />Y <br />1 <br />0 <br />N <br />W <br />ORONO PARK <br />870 <br />869870 870869865 865863 863864 864866 866867 867868863863 <br />87 <br />0 <br />87 <br />1 <br />87 <br />0 <br />867 <br />867 <br />868 <br />869 <br />868 <br />869 <br />871 <br />868869 <br />869 870869 868869 <br />870 <br />869 <br />868 <br />ISLAN <br />D <br /> <br />V <br />I <br />E <br />W <br /> <br />D <br />R <br /> <br />N <br />W <br />LANDER ST NWL <br />A <br />N <br />D <br />E <br />R <br /> <br />D <br />R <br /> <br />N <br />W <br />185TH A <br />V <br />E <br /> <br />N <br />W <br />185TH LN NW SFLAKE ORONO LOCATION <br />SCALE IN FEET <br />0 <br />H: <br />200 400 <br />WSB PROJECT NO.:REVISIONSNO.DATEDESCRIPTIONK:\015125-000\Cad\Plan\015125-000-C-EROS PLAN-1.dwg 5/7/2020 8:54:38 AMN <br />015125-000 <br />SCALE: <br />PLAN BY: <br />DESIGN BY: <br />CHECK BY: <br />AS SHOWN <br />CKJ <br />LC <br />ARA <br />I HEREBY CERTIFY THAT THIS PLAN, SPECIFICATION,OR REPORT WAS PREPARED BY ME OR UNDER MYDIRECT SUPERVISION AND THAT I AM A DULYLICENSED PROFESSIONAL ENGINEER UNDER THELAWS OF THE STATE OF MINNESOTA.LIC. NO:DATE:AMY ANDERSON, P.E.XX/XX/201950820LAKE ORONOIMPROVEMENTSCITY OF ELK RIVEREROSION CONTROL <br />PLAN-1 <br />SHEET <br />OF <br />17 <br />11 <br />SEE SHEET 4 <br />SEE SHEET 7 <br />SEE SHEET 3 <br />SEE SHEET 6 <br />SEE SHEET 5 <br />SEE SHEET 8 <br />183RD AVE NW <br />MISSISSIPPI RD NW <br />ORONO PKWY NW <br />US HIGHWAY 10 NW <br />LAKE ORONO <br />ORONO <br />ISLAN <br />D <br /> <br />V <br />I <br />E <br />W <br /> <br />D <br />R <br /> <br />N <br />W <br />ME <br />A <br />D <br />O <br />W <br />V <br />A <br />L <br />E <br /> <br />R <br />D <br /> <br />N <br />W <br />PARK <br />CITY <br />HALL <br />LAKE ORONO <br />RAIL ROAD <br />LEGEND <br />PROPERTY LINES/RIGHT-OF-WAY <br />EXISTING CONTOUR LINE - MAJOR <br />EXISTING CONTOUR LINE - MINOR <br />910 <br />913 <br />PROPOSED CONTOUR LINE - MAJOR <br />PROPOSED CONTOUR LINE - MINOR <br />910 <br />913 <br />SHORELINE RESTORATION (SEE TOE ROCK DETAIL) <br />OHW (ORDINARY HIGH WATER ELEVATION = 871.5) <br />CONSTRUCTION LIMITS <br />COBBLES <br />CONSTRUCTION ENTRANCE <br />GENERAL NOTES <br />1.REFER TO SWPPP FOR SPECIFIC NPDES AND EROSION CONTROL NOTES. <br />2.ALL SOILS SHALL BE TEMPORARILY STABILIZED IMMEDIATELY WITHIN 7 DAYS OF CEASING ACTIVE WORK. <br />-TEMPORARY SHORELINE STABILIZATION: SEED MIX 32-241 @ 38 LBS / ACRE, CAT. 25 (WOOD EROSION CONTROL BLANKET. <br />-TEMPORARILY IN-LAKE STABILIZATION: TYPE 3 MULCH, DISC ANCHOR UNLESS STANDING WATER IS PRESENT. <br />3.PHASE A: DIVERT ELK RIVER TO THE SOUTHERN SIDE OF ORONO LAKE, AS SHOWN. WORK WILL BE COMPLETED CONCURRENTLY IN THE NORTH HALF OF LAKE <br />ORONO. CONSTRUCTION PHASING CAN VARY AS APPROVED BY THE CITY ENGINEER. CONTRACTOR TO SUBMIT ELK RIVER BYPASS PLAN AT LEAST 10 DAYS PRIOR <br />TO PROPOSED RIVER DIVERSION ACTIVITIES. <br />4.PHASE B: DIVERT ELK RIVER TO THE NORTHERN SIDE OF LAKE ORONO, AS SHOWN. WORK WILL BE COMPLETED CONCURRENTLY IN THE SOUTH HALF OF LAKE <br />ORONO. CONSTRUCTION PHASING CAN VARY AS APPROVED BY THE CITY ENGINEER. CONTRACTOR TO SUBMIT ELK RIVER BYPASS PLAN AT LEAST 10 DAYS PRIOR <br />TO PROPOSED CREEK DIVERSION ACTIVITIES. <br />5.ALL STREETS IN AND ADJACENT TO THE PROJECT SHALL REMAIN CLEAN AND PASSABLE AT ALL TIMES. ANY SEDIMENT OR DEBRIS SHALL BE REMOVED WITHIN 24 <br />HOURS, OR AS OFTEN AS NEEDED TO ENSURE PUBLIC SAFETY. STREETS MUST BE SWEEPED DAILY DURING HAULING OPERATIONS TO REMOVE DEBRIS AND ICE <br />FROM ROADWAYS. <br />6.SEDIMENT CONTROL MUST BE IN PLACE AND APPROVED BY THE ENGINEER BEFORE ANY PHASE OF CONSTRUCTION CAN BEGIN. <br />7.THE CONTRACTOR SHALL PROVIDE PERIMETER CONTROL DAY-TO-DAY AT DISTURBED UNSTABILIZED AREAS WHERE EROSION OR SEDIMENTATION COULD BE A <br />PROBLEM. THE ENGINEER SHALL DIRECT THE CONTRACTOR AS TO WHERE PLACEMENT OF PERIMETER CONTROL WILL BE REQUIRED. <br />8.IF SEDIMENT DEPOSITS IN WATERS OF THE STATE, THE MATERIAL MUST BE REMOVED WITHIN 7 DAYS. <br />9.ALL STORM SEWER STRUCTURES SHALL BE PROTECTED BY APPROPRIATE BMPS DURING CONSTRUCTION UNTIL ALL SOURCES WITH POTENTIAL FOR <br />DISCHARGING TO THE STRUCTURE(S) HAVE BEEN STABILIZED. <br />10.STABILIZATION OF DISTURBED AREAS SHALL BE DONE BY PERMANENT TURF ESTABLISHMENT WHENEVER POSSIBLE. <br />11.A STABILIZED CONVEYANCE FOR ELK RIVER MUST BE PROVIDED AT ALL TIMES DURING CONSTRUCTION, OR ANOTHER BMP APPROVED BY THE ENGINEER. <br />12.ALL STOCKPILES MUST HAVE PERIMETER SEDIMENT CONTROL IMPLEMENTED AND MAINTAINED AT ALL TIMES. STOCKPILES TO RECEIVE RAPID STABILIZATION <br />METHOD 3 IF UNWORKED FOR 7 DAYS. <br />13.CONTRACTOR TO SUBMIT A DEWATERING PLAN TO THE ENGINEER FOR APPROVAL AT LEAST 10 DAYS PRIOR TO COMPLETING ANY SITE DEWATERING ACTIVITIES. <br />THE PLAN MUST INCLUDE A DEWATERING SYSTEM PRIOR TO DISCHARGING INTO RECEIVING WATER. THE DEWATERING PLAN MUST ENSURE THAT THE DISCHARGE <br />WATER IS FREE OF SEDIMENT AND TURBID WATER. <br />14.SITE PLANS SHALL BE SUBMITTED TO THE ENGINEER AT LEAST 10 DAYS IN ADVANCE AND IN ACCORDANCE WITH THE SWPPP. <br />BYPASS ROUTE A <br />BYPASS ROUTE B <br />CLEAR & GRUB AS DIRECTED BY <br />THE ENGINEER <br />PROTECT ALL TREES THAT WILL <br />NOT BE REMOVED WITH <br />CONSTRUCTION SAFETY FENCE <br />AT THE TREE'S DRIPLINE. <br />PROVIDE A WHEEL WASH OFF SYSTEM <br />AS THE STABILIZED CONSTRUCTION <br />EXIT BMP (MnDOT PAY ITEM 2573.502) <br />CONSTRUCTION STAGING AREA <br />FLOW ARROW <br />ENVIRONMENTALLY <br />SENSITIVE AREA <br />871.5 <br />WOOD FIBER BIO ROLL <br />SFSILT FENCE <br />SEED MIX 25-151 WITH HYDRAULIC STABILIZED FIBER MATRIX <br />AT 3,000 LBS/ACRE & FERTILIZER TYPE 3 (22-5-10) AT 350 LBS/ACRE <br />EROSION CONTROL BLANKET CATEGORY 25 WITH MnDOT <br />SEED MIX 33-261 @ 35 LBS/ACRE WITH TYPE 4 FERTILIZER <br />@ 150 LBS/ACRE. <br />CITY ACCESS <br />16 XX/XX/2020