HomeMy WebLinkAbout2018-141 Grading8958
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5900 900
905905
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892 8928938938948948968
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6897 8
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7898 89
8899 899901 901902 902903 903
904904906 906
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BENCHMARK
[Location]
[Elevation = xxx.xx]
C01
GRADING & SWPPP
12/18/2018 2:03 PMPrint Date: File Loc: C:\CM\Civil Methods, Inc\CMI - Documents\7. Projects\0458_6000 Walnut SWM\08_DRAWINGS AND SPECIFICATIONS\C3D\0458_GR_181210.dwgLEGEND:
1. Perimeter sediment controls shall be installed as indicated prior to site disturbance, and shall be
installed to allow for high-flow bypass or overflow to prevent failure during significant rainfall
2. Inlet protection shall be installed at City catch basins within 1 block of project site.
3. Contractor is responsible for keeping sediment from leaving the property, including vehicle tracking.
Should sediment be tracked onto adjacent street, Contractor shall sweep at the end of work day.
4. Install silt fence or sediment control log around any soil stockpiles that will be present for more than
7 days.
5. If areas with slopes greater than 3:1, and near water bodies, are disturbed, they shall be protected
with temporary vegetation, mulch or other means as soon as practical.
6. Perimeter sediment controls shall be installed as indicated prior to site disturbance, and shall be
installed to allow for high-flow bypass or overflow to prevent failure during significant rainfall.
7. Devices shall be inspected weekly and after all rainfall events exceeding 1", and maintained as
necessary to keep the intended functional condition.
8. Accumulated sediment shall be removed from sediment control devices when 1
3 of device height
has been reached.
9. After rough grading is completed, and topsoil spread, areas shall be seeded and blanketed or
hydromulched (or sodded) within 7 days. Areas not being actively worked must be covered with
temporary seed within 14 days.
10. Perimeter sediment controls shall remain in place until vegetation is growing / established in all
disturbed areas.
SEDIMENT CONTROL & TURF RESTORATION NOTES:
1. Concrete washout shall not be permitted onsite, unless done per MPCA standard.
2. Vehicle or equipment washing will not be performed on site.
3. All solid waste must be disposed of in accordance with all applicable federal and state regulations.
4. All hazardous materials must be properly stored to prevent spills or leaks; dispose per all applicable
regulations, including MN Rule Ch. 7045.
5. Pesticides, herbicides, fertilizers, cleaners, paints, treatment chemicals, etc., must be stored under
cover to prevent pollutant discharge (or similarly protected to prevent contact with stormwater).
6. DEWATERING, if necessary, shall be done in a manner so as to not discharge sediment-laden
water or cause downstream nuisance conditions of standing water or erosion.
6.1. Discharge dewatering towards street.
6.2. Dewatering water shall be inspected for turbidity (cloudy with sediment); if present, filtration
mechanism shall be installed at pump inlet and/or outlet to remove sediment. This may
include pumping from a perforated barrel lined with a filter fabric, pumping to a sediment filter
sack or temporary settling basin (lined dumpster, pit, etc.) with in-line Chitosan sock (or similar
non-toxic flocculant) and discharge from the surface, or similar filtration mechanism approved
by the City.
6.3. Dewatering must be done to MPCA standards.
POLLUTION PREVENTION NOTES:
1. PRIMARY: Ph:
EROSION CONTROL SUPERVISOR:
CRUSHED ROCK,
OF 3" TO 6"
12" MINIMUM DEPTH
15' MIN.AS REQUIRED
PUBLIC STREET
RADIUS AS
REQUIRED
15' MIN.
CLEAR OR WASHED,
OVER GEOTEXTILE FABRIC
STABILIZED CONSTRUCTION
ENTRANCE
Feet
0 10 20
SITE DATA:
1. PROPERTY AREA: ± 11,643 FT2
2. EXISTING IMPERV.: ± 0 FT2
3. PROPOSED IMPERV.: ± 2,899 FT2
4. NET NEW IMPERVIOUS: + 2,899 FT2
STABILIZED CONSTRUCTION ENTRANCE
SILT FENCE OR SEDIMENT CONTROL LOG
PROPOSED SPOT ELEVATION
PROPOSED DRAINAGE DIRECTION
PROPOSED CONTOUR
EXISTING CONTOUR
RAIN GARDEN BASIN
STORM SEWER
3" DIAMETER RISER
RETAINING WALL
884.2
DMPDESIGNED:
LIC. NO.:
DATE:
DAVID M POGGI
DRAWN:
CHECKED:
DMP
KEB44573
I 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 THE LAWS OF THE STATE OF MINNESOTA.
12-10-2018
CIVIL METHODS, INC.
1551 Livingston Avenue, Suite 104
West St. Paul, MN 55118
o:763.210.5713 | www.civilmethods.com
TJB HOMES
BLAINE, MN
DATE / REVISION: OWNER: TITLE: SHEET NO:
EDINA, MN
6019 WALNUT DRIVE RESIDENCE
GRADE TO DRAIN
BACK TO FRONT
RAIN GARDEN 1
BOT = 889.5
VOL = 188 FT3
SEE DETAIL
RAIN GARDEN 2
BOT = 892.0
VOL = 79 FT3
SEE DETAIL
NOTE: This is a partial rain garden plant list; other wet-tolerant
native plants may be suitable.
12"-18" DEPTH TO
OUTLET ELEVATION
NOTE: INSTALL NATIVE PLANT PLUGS (SIZE 2") FROM LIST (OR
SIMILAR) SPACED PER SUPPLIER INSTRUCTIONS.
3
1 MAX.
SLOPE
VARIES
RAIN GARDEN
ADD 2" COMPOST AND LOOSEN / TILL
NATIVE SOIL TO DEPTH OF 8", MINIMUM.
PLACE 6" OF SANDY TOPSOIL IF NOT
PRESENT
2" THICK LAYER OF WOOD
SLASH MULCH, HYDROMULCH
OR CAT. 0 BLANKET IN
PLANTING AREA
TILL SUBGRADE TO DEPTH OF 8" (MIN.)
EL. = C
D
4" MIN.
A
1.5:1
B
NOTE:
REINFORCED OVERFLOW CAN BE RIVER ROCK ,
GEOFABRIC, OR OTHER APPROVED STABILIZATION
BERM ELEV = C+D
REINFORCED BASIN OVERFLOW
BASIN I.D. A B C D
1 0.0' 1.0' 891.5 0.5'
2 0.0' 1.0' 893.5 0.5'
12" MIN.
PLACE TOPSOIL (6" MIN),
SOD OR SEED & MULCH
GRADED AREAS OUTSIDE
PLANTING AREA
SILT FENCE - PREASSEMBLED
DIRECTION OF
RUNOFF FLOW
18" MIN.POSTAT 6' MAXIMUM SPACING
5' MINIMUM LENGTH POSTS
STAPLES (TYP.)
GEOTEXTILE FABRIC,
WOVEN, 36" WIDTH
EMBEDMENT6"x 6" FABRIC ANCHOR
TRENCH, BACKFILL IWTH
TAMPED NATURAL SOIL
3"Ø RISER W/
GRATE
RIM = 893.0
INV = 891.5
6" HDPE
DUAL-WALL @ 0.5%
3" Ø RISER W/
GRATE
RIM = 891.0
INV = 889.5
6" HDPE
DUAL-WALL @ 0.5%
VERIFY COVER
OVER SERVICE
GRADING & RAIN GARDEN NOTES:
1. The utilities have not been located for this plan; Contractor is responsible for contacting Gopher
State One Call and ensuring utilities are located prior to digging.
2. Topographic survey by others.
3. Unless noted otherwise, all proposed contours indicate finished grades.
4. Minimize compaction in rain garden area below outlet elevation (OE); excavate with light-weight
equipment or from the side to the extent practical.
5. Excavate to 2-3" below final basin bottom elevation, add 2-3" of leaf compost and/or sandy topsoil,
till to 8-12" depth.
6. Any offsite topsoil borrow brought in for rain garden should be a minimum of 50% coarse sand.
7. NOTE: If basin bottom contains compacted silts and clays it will not drain property, and will likely
have extensive standing water and plant die-off.
8. Plant basin with water-tolerant native rain garden plant species (2" plugs or larger) in spring or fall
as recommended by supplier.
9. Basin shall be protected with sediment control log (or similar) from sediment-laden water until
remaining property is stabilized with vegetation.
01/30/19
ED167976
Stephen Kartak