HomeMy WebLinkAbout2009 Temp. & Perm. Erosions ControlSTORM WATER POLLUTION PREVENTION PLAN NOTES:
1. GRADING CONTRACTOR SHALL VERIFY LOCATIONS AND ELEVATIONS OF ALL
UNDERGROUND UTILITIES WITH THE RESPECTIVE UTILITY COMPANIES PRIOR TO CONSTRUCTION.
2. ALL EROSION CONTROL MEASURES CALLED FOR ON THESE PLANS AND
SPECIFICATIONS, WHICH MAY INCLUDE SILT FENCE, SEDIMENTATION BASINS
OR TEMPORARY SEDIMENT TRAPS, SHALL BE CONSTRUCTED AND SERVICEABLE
IN THE FOLLOWING ORDER:
A. ROCK CONSTRUCTION ENTRANCES A MINIMUM OF 50 FEET.
B. SILT FENCE.
C. TEMPORARY CULVERTS.
D. TEMPORARY SEDIMENTATION BASINS AND OUTFALL FACILITIES.
E. STORM WATER POND CONSTRUCTION,
F. COMMON EXCAVATION AND EMBANKMENT (GRADING )
G. SEED AND MULCH OR SOD.
H.BIO-ROLL BARRIERS IN FINISHED GRADED AREAS.
I. INLET AND OUTLET FACILITIES SUBSEQUENT TO STORM SEWER WORK.
3. GRADING CONTRACTOR SHALL PROVIDE AND MAINTAIN ALL EROSION CONTROL MEASURES IN ACCORDANCE
WITH CITY AND NPDES PHASE II PERMITTING REQUIREMENTS AS WELL AS EROSION CONTROL MEASURES AS
MAY BE SHOWN ON THESE PLANS OR SPECIFICATIONS. GRADING CONTRACTOR SHALL IMPLEMENT ANY
ADDITIONAL EROSION CONTROL MEASURES AS MAY BE REQUIRED TO PROTECT ADJACENT PROPERTY.
4. ALL EROSION CONTROL FACILITIES SHALL BE MAINTAINED BY THE
CONTRACTOR DURING GRADING OPERATIONS. ANY TEMPORARY FACILITIES WHICH
ARE TO BE REMOVED AS CALLED FOR ON THESE PLANS AND SPECIFICATIONS
SHALL BE REMOVED BY THE GRADING CONTRACTOR WHEN DIRECTED BY THE
ENGINEER. THE GRADING CONTRACTOR SHALL THEN RESTORE THE SUBSEQUENTLY
DISTURBED AREA IN ACCORDANCE WITH THESE PLANS AND SPECIFICATIONS.
5. THE GRADING CONTRACTOR SHALL SCHEDULE THE SOILS ENGINEER SO THAT
CERTIFICATION OF ALL CONTROLLED FILLS WILL BE FURNISHED TO THE OWNER
DURING AND UPON COMPLETION OF THE PROJECT.
6. ALL DISTURBED AREAS, EXCEPT AREAS TO BE PAVED AND/OR SPECIFICALLY DESIGNED BY A LANDSCAPE
PLAN, SHALL BE COVERED WITH A MINIMUM 4" OF TOP SOL. ALL DISTURBED AREAS SHALL BE SEEDED
& MULCHED AT THE PRESCRIBED RATES WITHIN 72 HOURS OF FINAL GRADING UNLESS OTHERWISE NOTED.
SEED MIX: MNDOT NO. 50B 50#/ACRE
MULCH TYPE 1 2 TONS/ACRE (DISK ANCHORED)
FERTILIZER: 150#/ACRE RATE OF APPLICATION 20-10-10
ALL EXPOSED SOIL AREAS WITH A CONTINUOUS POSITIVE SLOPE WITHIN 200 LINEAL FEET OF ANY
SURFACE WATER, MUST HAVE TEMPORARY EROSION PROTECTION OR PERMANENT COVER FOR THE EXPOSED
SOIL AREAS YEAR ROUND, ACCORDING TO THE FOLLOWING TABLE OF SLOPES AND TIME FRAMES.
TYPE OF SLOPE TIME (Maximum time an area can remain open when the area is not
actively being worked)
STEEPER THAN 3:1 7 DAYS
10:1 TO 3:1 14 DAYS
FLATTER THAN 10:1 21 DAYS
7. THE EXISTING TOPOGRAPHY AND CONTOUR ELEVATIONS SHOWN ON THE PLAN WERE TAKEN FROM A PLAN
FURNISHED BY OWNER.
8. CONTRACTORS GRADING AND EROSION CONTROL OPERATIONS SHALL TAKE PLACE WITHIN THE CONSTRUCTION LIMITS.
9. IT IS REQUIRED THAT SOILS TRACKED FROM THE SITE BY MOTOR VEHICLES BE CLEANED DAILY FROM PAVED
ROADWAY SURFACES THROUGHOUT THE DURATION OF CONSTRUCTION.
10. PROVIDE TEMPORARY SEDIMENTATION BASINS AS DIRECTED BY THE ENGINEER.
11. ALL REQUIREMENTS OF THE LOCAL WATERSHED DISTRICT SHALL BE SATISFIED PER THE APPROVED PERMIT.
12. ALL EROSION & SEDIMENT CONTROL MEASURES SHOWN ON THIS PLAN AND
IMPLEMENTED IN THE FIELD AS DIRECTED BY THE ENGINEER SHALL CONFORM TO THE MPCA'S
"PROTECTING WATER QUALITY IN URBAN AREAS: BEST MANAGEMENT PRACTICES FOR MINNESOTA".
13. DEWATERING AND/OR BASIN DRAINING DISCHARGE SHALL BE DIRECTED TO SEDIMENTATION BASINS
WHEREVER POSSIBLE. ALL DISCHARGE POINTS SHALL BE ADEQUATELY PROTECTED FORM EROSION &
SCOUR THROUGH USE OF APPROVED ENERGY DISSIPATION DEVICES.
14. ALL SOLID WASTE/ CONSTRUCTION DEBRIS SHALL BE DISPOSED OF IN ACCORDANCE WITH MPCA
REQUIREMENTS. HAZARDOUS MATERIALS SHALL BE STORED/ DISPOSED OF IN COMPLIANCE WITH
MPCA REGULATIONS
15. CONTRACTOR SHALL USE RAPID STABILIZATON METHODS PER MnDOT 2573 AS NEEDED DURING THE COURSE OF
THE WORK TO MAINTAIN CONFORMANCE WITH THE CITY AND NPDES 11 PERMIT REQUIREMENTS.
THIS WORK SHALL CONSIST OF OPERATIONS NECESSARY TO RAPIDLY STABILIZE SMALL CRITICAL AREAS, TO
PREVENT OFF SITE SEDIMENTATION AND/OR TO COMPLY WITH PERMIT REQUIREMENTS. THE WORK MAY BE
PREFORMED AT ANY TIME DURING THE CONTRACT AND DURING NORMAL WORKING HOURS. THIS WORK WILL BE
CONDUCTED ON SMALL AREAS THAT MAY OR MAY NOT BE ACCESSIBLE WITH NORMAL EQUIPMENT. THIS WORK
SHALL BE DONE IN ACCORDANCE WITH THE APPLICABLE MnDOT STANDARD SPECIFICATIONS, THE DETAILS SHOWN
IN THE PLANS, AND THE FOLLOWING:
THERE ARE FIVE STABILIZATION METHODS APPROVED FOR THESE OPERATIONS. THESE METHODS MAY BE
CONDUCTED INDEPENDENTLY OR IN COMBINATION.
METHOD #1: APPLY TYPE 1 MULCH AND DISC ANCHOR
METHOD #2: APPLY TYPE 1 MULCH AND TACK WITH TYPE 5 HYDRAULIC SOIL STABILIZER
METHOD #3: HYDROSPREAD SEED,FERTILIZER AND TYPE 6 HYDRAULIC SOIL STABILIZER
METHOD #4: HAND INSTALL SEED, FERTILIZER AND EROSION CONTROL BLANKET CATEGORY 3
METHOD #5: PLACE GEOTEXTILE AND RIP RAP CLASS II IN VARIOUS CONFIGURATIONS
THESE EFFORTS WILL BE INCIDENTAL TO THE EROSION CONTROL BID ITEM.
16. CHANGE OF COVERAGE: FOR STORM WATER DISCHARGES FROM CONSTRUCTION PROJECTS WHERE THE OWNER OR
OPERATOR CHANGES, (E.G.,AN ORIGINAL DEVELOPER SELLS PORTIONS OF THE PROPERTY TO VARIOUS BUILDERS)
THE NEW OWNER OR OPERATOR MUST SUBMIT A SUBDIVISION REGISTRATION WITHIN 7 DAYS OF ASSUMING
OPERATIONAL CONTROL OF THE SITE, COMMENCING WORK ON THEIR PORTION OF THE SITE , OR OF THE LEGAL
TRANSFER, SALE OR CLOSING ON THE PROPERTY.
17. INDIVIDUAL SITE BUILDERS SHALL BE RESPONSIBLE FOR PROVIDING ANY AND ALL NECESSARY EROSION
CONTROL MEASURES AS MAY BE REQUIRED. REQUIRED ECM'S SHALL CONSIST OF BUT NOT BE LIMITED
TO THE FOLLOWING:
A. STAKED FIBER LOG ROLLS AT BACK OF ALL CURB EXCEPT AT CONSTRUCTION/DRIVEWAY ENTRANCE.
B. SILT FENCE ON ALL DOWN GRADIENT SLOPES FROM CONSTRUCTION AREA. SILT FENCE SHALL HAVE
THE BOTTOM DUG IN WITH SOIL FIRMLY COMPACTED.
C. ROCK CONSTRUCTION ENTRANCE HAVING 1" TO 2" CLEAR ROCK OVER GEOTEXTILE FABRIC.
D. STREET CLEANING AS MAY BE REQUIRED SHOULD VEHICLE TRACKING OCCUR.
INDIVIDUAL SITE BUILDERS ARE REQUIRED TO MAINTAIN ECM'S UNTIL SUCH TIME AS INDIVIDUAL
YARDS/VEGETATION ARE ESTABLISHED.
18. CONTRACTOR SHALL PROVIDE A TEMPORARY SEDIMENTATION BASIN ON SITE FOR CONSTRUCTION WASH OUT USE.
TEMPORARY BASIN SHALL BE LOCATED AS TO PROVIDE EASY ACCESS FOR CONSTRUCTION VEHICLES AND
CONCRETE TRUCKS AS NECESSARY.
19. INLET SEDIMENTATION CONTROL IS TO BE PROVIDED TO ALL STORM SEWER CATCH BASINS THROUGHOUT
CONSTRUCTION. MEASURES APPLIED SHALL COMPLY WITH BEST MANAGEMENT PRACTICES FOR MINNESOTA AND
APPLICATIONS OF NPDES PHASE 11 AS APPROPRIATE FOR PHASE OF CONSTRUCTION,
EROSION -F CONSTRUCTION SEQUENCING
1. CONSTRUCTION WILL CONSIST OF RAIN GARDEN
EXCAVATION CONSTRUCTION, GRAVEL STRIPPING,
GRAVEL INSTALLATION, PAVING INSTALLATION,
FENCING AND BERM CONSTRUCTION.
2. RESPONSIBLE PARTY FOR EROSION INSPECTION AND
MAINTENANCE IS: NATE WENDT, ROCHON CORP.
(763) 559-9393.
3. PHASING PER SHEET 1 PHASE NOTES.
4. PROJECT SCHEDULE: 3-6 WEEKS OVER ALL LENGTH.
WEATHER DEPENDENT.
5. INSTALLATION OF EROSION: AT START OF PROJECT.
WIRE MESH REINFORCEMENT
(OPTIONAL) 7
METAL OR WOOD
POST OR STAKE
ENGINEERING FABRIC
FABRIC ANCHORAGE
TRENCH BACKFILL WITH
TAMPED NATURAL SOIL
DIRECTO FOF
OW
t
RUNOFF FINCH MINIM
`.
—NATURAL. FIN:
st .;
6 INCH MINIMUM
NOTE: DEPENDING UPON CONFIGURATION, ATTACH FABRIC TO WIRE MESH WITH
HOG RINGS, STEEL POSTS WITH TIE WIRES, OR WOOD POSTS WITH STAPLES.
TYPICAL INSTALLATION FOR SILT FENCE
(SECTION 6.3, MPCA'S "BEST MANAGEMENT PRACTICES")
1" X 2" X 18" LONG WOODEN STAKES AT
1' 0" SPACING MAXIMUM. STAKES SHALL BE
DRIVEN THROUGH THE BACK HALF OF THE
BIOROLL AT AN ANGLE OF 45 DEGREES WITH
THE TOP OF THE STAKE POINTING UPSTREAN
PROVIDE 8" TO 10" OF EMBEDMENT DEPTH.
FLOW
TEMPORARY
SILT FENCE
TEMPORARY SEED & —
MULCH ALL DISTURBED
AREAS PER SWPPP
NOTE 6.
RELOCATE FENCE TO
EAST SIDE OF RAIN
GARDEN.
LOCATE TEMPORARY
SILT FENCE ON
PROPERTY LINE.
MAY USE 810 -ROLLS
AS ALTERNATE.
RAIN GARDEN DEPRESSION
STORMWATER CONTROL
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NOTE: CONTRACTOR IS RESPONSIBLE FOR INSTALLATION, MAINTENANCE AND
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1 HEREBY CERTIFY THAT THIS PLAN, SPECIFICATION, OR REPORT WAS
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A DULY LICENSED PROFESSIONAL ENGINEER UNDER TME LAWS OF THE
STATE OF MINNESOTA.
PRINT NAME: MICHAEL B. BRANDY , P.E.
SIGNATURE:
DATE 5-19-09 LICENSE # 41258
902 PROPOSED CONTOUR
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DRIVE AISLE PANG SECTION
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ENTRANCE OF EARTHWORK OPERATIONS. MAINTAIN AS NEEDED.
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NOTE: CONTRACTOR IS RESPONSIBLE FOR INSTALLATION, MAINTENANCE AND
REMOVAL OF ALL APPLICABLE EROSION & SEDIMENT CONTROL ITEMS.
BIOROLL EROSION PROTECTION
LEGEND
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-------902------- EXISTING CONTOUR
DRAINAGE ARROW
-------910-------- EXISTING 10' CONTOUR
1 HEREBY CERTIFY THAT THIS PLAN, SPECIFICATION, OR REPORT WAS
PREPARED BY ME OR UNDER MY DIRECT SUPERVISION AND THAT I AM
A DULY LICENSED PROFESSIONAL ENGINEER UNDER TME LAWS OF THE
STATE OF MINNESOTA.
PRINT NAME: MICHAEL B. BRANDY , P.E.
SIGNATURE:
DATE 5-19-09 LICENSE # 41258
902 PROPOSED CONTOUR
SPENSA
OR ON 0, MINNESOTA
SPENSA DEVELOPMENT GROUP LLC
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1 HEREBY CERTIFY THAT THIS PLAN, SPECIFICATION, OR REPORT WAS
PREPARED BY ME OR UNDER MY DIRECT SUPERVISION AND THAT I AM
A DULY LICENSED PROFESSIONAL ENGINEER UNDER TME LAWS OF THE
STATE OF MINNESOTA.
PRINT NAME: MICHAEL B. BRANDY , P.E.
SIGNATURE:
DATE 5-19-09 LICENSE # 41258
M••••• .......
SPENSA
OR ON 0, MINNESOTA
SPENSA DEVELOPMENT GROUP LLC
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DESIGNED:
MBB
1 HEREBY CERTIFY THAT THIS PLAN, SPECIFICATION, OR REPORT WAS
PREPARED BY ME OR UNDER MY DIRECT SUPERVISION AND THAT I AM
A DULY LICENSED PROFESSIONAL ENGINEER UNDER TME LAWS OF THE
STATE OF MINNESOTA.
PRINT NAME: MICHAEL B. BRANDY , P.E.
SIGNATURE:
DATE 5-19-09 LICENSE # 41258
Anderson Engineering of Minnesota, LLC
CIVIL ENGINEERIN G A N D L A N D S U R V E Y IN G
13605 1st AVENUE NORTH, SUITE 100, PLYMOUTH, MN 55441
TEL (763) 412-4000 FAX (763) 412-4090
SPENSA
OR ON 0, MINNESOTA
SPENSA DEVELOPMENT GROUP LLC
TEMPORARY & PERMANENT
EROSION CONTROL PLAN
COMM. NO.
11586
PLOTTED:
DRAWN:
PSH
DRAWING N0.
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2 O r
2
7-17-09
CITY ENGINEER FINAL COMMENTS – PAVE SECTION PRIVATE
1
6-18-09
CITY ENGINEER COMMENTS
CHECKED BY:
N0.
DATE
DESCRIPTION OF REVISIONS