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NORTHEAST BRIDGE <br />1 GRADING & EROSION CONTROL PLAN <br />• <br />• <br />• <br />NORTHEAST BRIDGE <br />..0.74. w \\ <br />\ EROSION \X \ / _ <br />1 FENCE \ 1\ .( _ <br />- `o.-- 1- =.wru. \ \ 1 ' <br />.-:. ; '' �i Y. \/\���''''''CIR�TR�OL \\ \ /// ''' - -- — • ----- -- `\� <br />I -- ,__: ,i2.1\4\ �+a , BLANKET \ \ (\ � - -- / /'�_' - -- \� <br />�'� \ \I \� • \\poi: .fir /��� <br />/ J, <br />/ / / / / 4.... d :...."`�.: p�'t.,a e 'e -2e. zoos - <br />/ , <br />J <br />1 / RANDOM /CLASS It / i./' / // <br />\ RIPRAP/(SL/OPE ? 3:/110-2:_/ . • <br />\\ / / / / / , 4 r / /' <br />•\ \ \\ / % / fir/ /// <br />\\ may/ / //r/, /// <br />NOTE . <br />SEE FLOOD PLAIN MITIGATION _ _ _ _ _ — <br />GRADING AT RIGHT - - -- <br />/ <br />•;,, <br />RANDOM CLASS III 2- <br />y - /i ' <br />/ ce _ / .,- _ -- <br />�.-.\ // // ���'— <br />/ \ / / �.v�' <br />\ / ,/ <br />DV O.r27PVC \ / /' !/ / / <br />1 . <br />_ ! 1 <br />/ <br />EROSION ". <br />CONTROL // <br />BLANKET / <br />/' <br />/ <br />/- <br />/ <br />/ / / <br />/ / <br />/ <br />r <br />, EROSION <br />CONTROL <br />FENCE <br />/ 1 / <br />\ / f <br />1 1 / <br />I 1 1 <br />I11 • <br />// 1 \ I <br />II <br />/ I <br />1 <br />I <br />PI NEERengineering <br />.w w. <br />N. Mats Va. <br />mo <br />\ \ \ <br />FLOODPLAIN MITIGATION AREA <br />\ \ <br />\ \ <br />' <br />\ 11 <br />1 / / <br />�� / 1 <br />\ \ ♦ /.P-' / <br />\\ \ \ \� _A. --- / <br />♦ ♦ // `� <br />♦ <br />887 <br />884 <br />...,Isar <br />/ <br />/ <br />/ <br />/ <br />/ <br />SEED WITH BWSR MIXTURE R1 <br />t e. <br />• •a114, . \ \ <br />\ OsION \ \ -� _ \ - `` -\ \ <br />i I <br />0 Vi, \N \ CCONTROL \ \ / i �' ` \ OSION \ BLANKET \ \ \ / \ \ CONTROL \ <br />\\ \ \ \\ / \` `` �` \\ \\ FENCE \ <br />1•. <br />1 • <br />... w,.r r`i"'° \ • <br />. \._ <br />EROSION \ • -. • CONTROL \ 1 <br />1 FENCE \ \ <br />\ <br />/ <br />/ <br />/ <br />l <br />FLOODPLAIN FILL & MITIGATION SUMMARY <br />LOCATION IMPACT <br />NORTH ABUT. NORTHEAST BRIDGE <br />150 CY F1LL <br />SOUTH ABUT. NORTHEAST BRIDGE <br />280 CY FILL <br />NORTH ABUT. SOUTHWEST BRIDGE <br />325 CY FILL <br />SOUTH ABUT. SOUTHWEST BRIDGE <br />395 CY FILL <br />MFIIGATION AREA <br />1175 CY EXCAVATION <br />0 1D 20 M <br />CRAPHIC SCALE IN FEET <br />8' PVC Water Line <br />CLAP CULVERT <br />WATER VALVES <br />BRIDGE SUPPORTS <br />SOIL BORING <br />TEST HOLE <br />TREE LINE <br />TREE <br />EXISTING 1' CONTOUR LINE <br />EXISTING 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 81 RIPRAP (SLOPES > 3:1) <br />PROPOSED BITUMINOUS SURFACE <br />EROSION CONTROL <br />TIME UNE <br />- ALL EROSION CONTROL FENCE TO BE <br />INSTALLED AFTER CLEARING & PRIOR TO ANY <br />GRADING OPERATIONS. <br />- RIPRAP TO BE PLACED WITH WINTER <br />CONSTRUCTION. • <br />- PLACE MULCH ON ALL DISTURBED AREAS <br />AFTER COMPLETION OF WINTER CONSTRUCTION. <br />- PLACE PERMANENT SEED AND EROSION <br />CONTROL BLANKET AS SOON AS CONDITIONS <br />PERMIT IN SPRING. <br />- SILT FENCE AND OTHER TEMPORARY EROSION <br />CONTROL MEASURES SHALL REMAIN IN PLACE <br />UNTIL 71-10 SITE HAS UNDERGONE FINAL <br />STABIUZATION. <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 />10911241k <br />2422 Enterprise Drive <br />Mendota Heights, MN 55120 <br />(651) 681.1914 <br />FDx: 681 -9488 <br />www.piotmsmng.mm <br />I l��1yOw tplm .. p 5 'Um <br />Lim„ wperrinim Nu <br />n 1 <br />.m a dWy ender Li ®W Prola.iond rmpirca <br />wow Ims o1 the St= ofMiomm <br />Rq Nn <br />Pgml .!>me <br />19160 n... 1-06-10 <br />97 II179 Pioneer FiOwr. <br />Revision[ <br />Dam 12,7-09 <br />PIC <br />Dram, 13212 <br />ANOKA COUNTY PARKS <br />550 BUNKER I.AKEBLVD. N.W. <br />ANDOVER. MINNESOTA 55309 -4122 <br />CHOMONIX PEDESTRIAN BRIDGES <br />LINO LAKES, MINNESOTA <br />6 OF 8 <br />