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• <br />Weeded Nee <br />NORTHEAST BRIDGE <br />1 . \ <br />1 • <br />\ • <br />r"° \\ <br />- -,,- EROSION \ • �. <br />CONTROL \ 1 <br />( FENCE \ <br />1 \ \ <br />t1 \ EROSION \ \ <br />\ \ • <br />�?a y BLANKET \ \ • <br />■ <br />NOTE <br />SEE FLOOD PLAIN MITIGATION ______ - - - <br />GRADING AT RIGHT ___ -- <br />- <br />4. 7 \\ - - ■ / // // --r- <br />�/ <br />\------ / // ��'ci/ —w° °Weed <br />/ // /:/ .. <br />'.� i - -� // �/ <br />-- <br />/ / /.I <br />/ /4::, <br />/ <br />/ / / <br />,- / / 1 / / /e.,..°. <br />/ / / / / / / <br />/ / / / / / .r /:••_ <br />/ / " / / <br />I / RANDOM /CLASS I� / r T-I/ / /--- <br />1 / RIPRAP /(SLOPE ? 3: / / • <br />\ / / / / / / ,/r / / <br />\ \ / / / / /r/ /// <br />\ \ \-' / // // / / '"/ /// <br />\ \ / // //� / / <br />\ '---'y� / /r /// <br />/ <br />Ime <br />' " - - .... <br />— — <br />Wae.:-28. 2000 - <br />/ <br />/ <br />— <br />��� / .`. a ^ \\ / /// / / / //� ` - - -- ` / <br />G� / I /' v / / <br />% J \\I\ // // / / NO <br />// /v �� �. l / / / <br />1 1 / // ✓ 1 .+'r \ <br />RANDOM CLASS III / Pr. "!\ �' ys <.r. .f ew,...ed e..m- / /// 11 1 1 <br />RIPRAP (SLOPE > 3:4) / [ °� // I 1 V <br />hw awex v \� 1.1� / / EROSION / 1 I <br />v, ° °[`:". ?:��•:.5, \ \� ®©�Il�h".• // BLANKET // /// \ 11 <br />/ / <br />• / f / <br />/ <br />— <br />/ / \ \� 111 Ir1' EROSION I / / <br />I t`1 ``•:.. \ • •, FENCE I // <br />} 1 I / <br />\\ r rmaed 1 .. \ \\ 1 <br />\ N.. I } V \ \ <br />1 { <br />\\ I \ ••mod= \\ \\ <br />1 Os..... \ <br />1 • \1 \ \ <br />■ \ <br />PIZNEERengineering <br />0 <br />rrfa/ur v••• <br />Oa Mb. Val•11 <br />11• <br />• <br />�..a,dw�° \\ <br />ERO \ <br />\ <br />CONTROL <br />1 FENCE SION \ 1\ <br />1 <br />\ \ <br />%•„...._-\-.=•••.4.1:=0.1. \ \ <br />\ <br />\ EROSION \ \ <br />1y \,CONTROL \ \ / <br />BLANKET \ 1 \ <br />\ \ \ // <br />1 \ \ ,i✓/ / _ -' /_/ <br />1 <br />/': ://///' ' sue <br />\ <br />FLOODPLAIN MITIGATION AREA <br />\ \ <br />\ : <br />N \ / f <br />SEED WITH BWSR MIXTURE R1 <br />887 <br />884 <br />• <br />15,2h <br />N. <br />,— "--- - - - - -- �\ _ <br />FLOODPLAIN FILL & MITIGATION SUMMARY <br />LOCATION IMPACT <br />NORTH ABUT. NORTHEAST BRIDGE <br />150 CY FlLL <br />SOUTH ABUT. NORTHEAST BRIDGE <br />280 CY FILL <br />NORTH ABUT. SOUTHWEST BRIDGE <br />325 CY FlLL <br />SOUTH ABUT. SOUTHWEST BRIDGE <br />395 CY FILL <br />MITIGATION AREA <br />1175 CY EXCAVATION <br />0 10 20 40 <br />GRAPHIC SCALE IN FEET <br />• <br />8 <br />5 <br />\ EROSION \ <br />- -__ - -\ \\ CONTROL \ <br />��� \ \ FENCE \ <br />� \ \ \ <br />\ \ \ <br />\\ \ \ \ \\ \ <br />\ \ <br />EROSION CONTROI <br />TIME UNE <br />- ALL EROSION CONTROL FENCE TO BE <br />INSTALLED AFTER CLEARING & PRIOR TO ANY <br />8' PVC Water Line GRADING OPERATIONS. <br />CMP CULVERT <br />•• WATER VALVES - RIPRAP 70 BE PLACED WITH WINTER <br />BRIDGE SUPPORTS CONSTRUCTION. <br />• SOIL BORING - PLACE MULCH ON ALL DISTURBED AREAS <br />o TEST HOLE AFTER COMPLETION OF WINTER CONSTRUCTION. <br />^-•� TREE LINE <br />r' <br />- PLACE PERMANENT SEED AND EROSION <br />TREE CONTROL BLANKET AS SOON AS CONDITIONS <br />PERMIT IN SPRING. <br />EXISTING 1' CONTOUR UNE <br />EXIS1ING 5' CONTOUR UNE <br />EDGE OF DEUNEATED WETLAND <br />DRAINAGE ARROW <br />HEAVY -DUTY EROSION CONTROL SILT FENCE <br />EROSION CONTROL BLANKET <br />RANDOM CLASS III RIPRAP (SLOPES > 3:1) <br />PROPOSED BITUMINOUS SURFACE <br />- SILT FENCE AND OTHER TEMPORARY EROSION <br />CONTROL MEASURES SHALL REMAIN IN PLACE <br />UNTIL THE SITE HAS UNDERGONE FINAL <br />STABILIZATION. <br />SILT FENCE <br />- SILT FENCE MUST BE REPAIRED OR REPLACED <br />WHEN NONFUNCTIONAL OR SEDIMENT REACHES 1/3 <br />OF THE FENCE HEIGHT. <br />INSPECTIONS <br />- EROSION CONTROL SHALL BE INSPECTED ONCE <br />EVERY SEVEN DAYS AND WITHIN 24 HOURS OF <br />0.5' OR LARGER RAINFALL EVENT. <br />MATERIALS <br />EROSION CONTROL BLANKET - MnDOT CATEGORY 2 <br />SEED MIX - BWSR R1 <br />MULCH - MnDOT TYPE 1 <br />109102-0R <br />2422 Enterprise Drive rtw un.�.v.,v9xe (651) 681 -1914 <br />Mandela Heights,MN 55120 Fu: 681-0488 <br />w.piax: 681 -.mm <br />C 2009Nmdv Fnpoedo, <br />I hereby certify Mar W4 Om was prepared 69 None <br />under my Area x1 erMMon, Mel I <br />una duly U®rA Professional ,0* <br />coder We lows of We Sum of Monmu Rey No. 00800 pre 1-06-10 <br />4s.(Q1 � �. CEe <br />me <br />RevLions <br />Des 12-07-09 <br />Dcipd P1C <br />p. n BNM <br />NORTHEAST BRIDGE <br />GRADING & EROSION CONTROL PLAN <br />ANOKA COUNTY PARKS <br />550 BUNKER LAKE BLVD. N.W. <br />ANDOVER, MINNESOTA 553044122 <br />CHOMONIX PEDESTRIAN BRIDGES • <br />LINO LAKES, MINNESOTA <br />