HomeMy WebLinkAboutC05.1 Erosion Control DetailsEROSION CONTROL SCHEDULE
EROSION CONTROL MEASURE
MAINTENANCE
INSTALLATION SEQUENCE
STONE ENTRANCE
AS NEEDED
PRIOR TO CLEARING AND GRADING
SILT FENCE
WEEKLY, AFTER STORM EVENTS AND AS NEEDED
PRIOR TO CLEARING AND GRADING
EXISTING INLET PROTECTION
WEEKLY, AFTER STORM EVENTS AND AS NEEDED
PRIOR TO CLEARING AND GRADING
TREE PROTECTION
WEEKLY, AFTER STORM EVENTS AND AS NEEDED
PRIOR TO CLEARING AND GRADING
TEMPORARY DIVERSIONS
WEEKLY, AFTER STORM EVENTS AND AS NEEDED
ALONG WITH ROUGH GRADING
TEMPORARY SEEDING
WATER AS NEEDED
AFTER ROUGH GRADING
PERMANENT SEEDING
WATER AS NEEDED
AFTER FINISH GRADING AS SOON AS PRACTICAL UPON COMPLETION
EROSION CONTROL MATTING
WEEKLY, AFTER STORM EVENTS AND AS NEEDED
AFTER FINISH GRADING AS SOON AS PRACTICAL UPON COMPLETION
STRAW BALES
WEEKLY, AFTER STORM EVENTS AND AS NEEDED
AFTER FINISH GRADING AS SOON AS PRACTICAL UPON COMPLETION
INLET PROTECTION
WEEKLY, AFTER STORM EVENTS AND AS NEEDED
AFTER EACH INLET IS PLACED
.4
5.8 7.5
2
REMOVAL OF TREE PROTECTION
N/A
N/A
N/A
N/A
AFTER PERMANENT SEEDING
AFTER ALL AREAS DRAINING TO THESE AREAS ARE STABILIZED
AFTER ALL AREAS DRAINING TO THESE AREAS ARE STABILIZED
AFTER ALL AREAS DRAINING TO THESE AREAS ARE STABIUZED
REMOVAL OF STRAW BALES
REMOVAL OF INLET PROTECTION
REMOVAL OF SILT FENCE
SPECIES
SEEDING RATE
SUITABLE pH
SITE SUITABILITY
S75
LBS /ACRE
LBS/ 1000
SQ. FT.
DROUGHTY
WELL
DRAINED
WET
LEVEL AND SLOPING, OPEN AREAS
1. TALL FESCUE
35
.8
5.5 -8.3
2
1
2
2. TALL FESCUE
25
.6
5.5 -8.3
2.3 LBS.
1
COVER SEED 1" DEEP
RED CLOVER
5
.12
7 -21
ANNUAL RYEGRASS
1 LB.
40 LB.
3. KENTUCKY BLUEGRASS
15
.4
5.8 7.5
2
1
1
CREEPING RED FESCUE
15
.4
12 -18
10 -20
STEEP BANKS AND CUTS
4. TALL FESCUE
15
.4
5.8 -7.5
2
1
2
KENTUCKY BLUEGRASS
25
.6
24 -36
5 -14
T
5. TALL FESCUE
35
.8
5.5 8.3
2
1
1
EMERALD CROWNVETCH
10
.25
15 -20
12 -18
5 -10
LAWNS AND HIGH MAINTENANCE AREAS
6. KENTUCKY BLUEGRASS
40
.9
5.8 -7.5
2
1
CREEPING RED FESCUE
40
.9
5 -10
24
14 -21
T
7. PERENNIAL RYEGRASS
170
4.0
5.0 -7.5
1
1
2
(TURF TYPE)
MED.
1
7 -10
18
5 -10
8. TALL FESCUE
I 170
4.0
5.5 -8.3
2
1
2
TYPE
TEMPORARY SEEDINGS
MAX. SLOPE
APPUCATION
S75
10 MONTHS
TYPE OF SEED
1000 SQ. FT. ACRE
REMARKS
60 DAYS
3:1
LOW FLOW SWALES
S150
WHEAT OR RYE
3.5 LBS.
2 BU.
COVER SEED 1" TO 1 1/2" DEEP
60 DAYS
2:1
MODERATE DISCHARGE SWALES
SC150
SPRING OATS
2.3 LBS.
3 BU.
COVER SEED 1" DEEP
3 YEARS
>1:1
HIGH DISCHARGE SWALES
7 -21
ANNUAL RYEGRASS
1 LB.
40 LB.
COVER SEED 1/4" DEEP
TYPE
LONGEVITY
MAX. SLOPE
APPUCATION
S75
10 MONTHS
3:1
LOW FLOW SWALES
DS75
60 DAYS
3:1
LOW FLOW SWALES
S150
10 MONTHS
2:1
MODERATE DISCHARGE SWALES
DS150
60 DAYS
2:1
MODERATE DISCHARGE SWALES
SC150
2 YEARS
1:1
MEDIUM DISCHARGE SWALES
C125
3 YEARS
>1:1
HIGH DISCHARGE SWALES
DWN BY:
JCB
1
I 1
1
1„
DATE:
10/12/05
MATURE
HEIGHT (INCHES)
EMERGENCE
TIME (DAYS)
SOIL
TOLERANCE
WET
NORM
I I/ i l
GEN.
SOIL
I II
1 II
1 1
DWN BY:
JCB
CHKD. BY:
BSC
SCALE:
N.A.
DATE:
10/12/05
,RANKING:
1 GOOD
2 MEDIUM
NOT TOLERANT
SEEDBED PREPARATION
APPLY UME TO RAISE Mt pM TO THE LEVEL NEEDED FOR SPECIES BEING
SEEDED. APPLY 23 POUNDS OF 12 -12 -12 ANALYSIS FERTILIZER (OR EQUIVALENT) PER
1000 SQ. FT. (APPROXIMATELY 1000 POUNDS PER ACRE) OR FERTILIZE ACCORDING TO
TEST. APPUCATION OF 150 LBS. OF AMMONIUM NITRATE ON AREAS LOW IN ORGANIC
MATTER AND FERTILITY WILL GREATLY ENHANCE VEGETATIVE GROWTH.
WORK THE FERTIUZER AND UME INTO THE SOIL TO A DEPTH OF 2 -3 INCHES
WITH A HARROW, DISK OR RAKE OPERATED ACROSS THE SLOPE AS MUCH AS POSSIBLE.
SEEDING
SELECT A SEED MIXTURE BASED ON PROJECTED USE OF THE AREA (SEE
PERMANENT SEED MIXTURE CHART). WHILE CONSIDERING BEST SEEDING DATES.
IF PERMANENT SEEDING IS NOT PERMITTED USE TEMPORARY SEEDING
UNTIL PERMANENT SEEDING CAN BE APPLIED. IF TOLERANCES ARE A PROBLEM, SUCH AS
SALT TOLERANCE OF SEEDINGS ADJACENT TO STREETS AND HIGHWAYS, SEE
SEED TOLERANCE CHART.
SALT TOLERANCE (TO BOTH SOIL SALTS SPRAY)
T TOLERANCE
MT MEDIUM TOLERANCE
S SLIGHT TOLERANCE
SEED TOLERANCE
1 PREFERRED 2 WILL TOLERATE INOCULATE WITH SPECIFIC INOCULANT.
SEED TOLERANCE CHART
EROSION CONTROL MEASURES MAINTENANCE REQUIREMENTS
STRAW BALE DAM MAINTENANCE REQUIREMENTS:
1. INSPECT STRAW BALE DAMS AFTER EACH STORM EVENT AND PROMPTLY REMOVE ANY
SEDIMENT DEPOSITS TO ENSURE ADEQUATE STORAGE VOLUME FOR THE NEXT RAIN,
TAKING CARE NOT TO UNDERMINE THE ENTRENCHED BALES.
2. INSPECT PERIODICALLY FOR DETERIORATION OR DAMAGE FROM CONSTRUCTION
ACTIVITIES AND REPAIR IMMEDIATELY.
3. AFTER THE CONTRIBUTING DRAINAGE AREA HAS BEEN STABIUZED, REMOVE ALL
STRAW BALES AND SEDIMENT, BRING THE DISTURBED AREA TO GRADE, AND STABIUZE IT.
SILT FENCE MAINTENANCE REQUIREMENTS:
1. INSPECT THE SILT FENCE PERIODICALLY AND AFTER EACH STORM EVENT.
2. IF FENCE FABRIC TEARS, STARTS TO DECOMPOSE, OR IN ANY WAY BECOMES
INEFFECTIVE, REPLACE THE AFFECTED PORTION IMMEDIATELY.
3. REMOVE DEPOSITED SEDIMENT WHEN IT REACHES HALF THE HEIGHT OF THE FENCE AT
ITS LOWEST POINT OR IS CAUSING THE FABRIC TO BULGE.
4. TAKE CARE TO AVOID UNDERMINING THE FENCE DURING CLEAN OUT.
5. AFTER THE CONTRIBUTING DRAINAGE AREA HAS BEEN STABIUZED, REMOVE THE FENCE
AND SEDIMENT DEPOSITS, BRING THE DISTURBED AREA TO GRADE, AND STABIUZE.
TEMPORARY SEDIMENT TRAP MAINTENANCE REQUIREMENTS:
1. INSPECT TEMPORARY SEDIMENT TRAPS AFTER EACH STORM EVENT IMMEDIATELY
REPAIR ANY EROSION AND PIPING HOLES.
2. REMOVE SEDIMENT WHEN IT HAS ACCUMULATED TO ONE -HALF THE DESIGN DEPTH.
3. REPLACE SPILLWAY GRAVEL FACING IF CLOGGED.
4. INSPECT VEGETATION, AND RE -SEED IF NECESSARY.
5. CHECK THE SPILLWAY DEPTH PERIODICALLY TO ENSURE A MINIMUM OF 1.5 FT. DEPTH
FROM THE LOWEST POINT OF THE SETTLED EMBANKMENT TO HIGHEST POINT OF THE
SPILLWAY CREST, AND FILL ANY LOW AREAS TO MAINTAIN DESIGN ELEVATION.
6. PROMPTLY REPLACE ANY DISPLACED RIP RAP, BEING CAREFUL THAT NO STONES IN THE
SPILLWAY ARE ABOVE DESIGN GRADE.
7. AFTER ALL DISTURBED AREAS HAVE BEEN STABIU;ZED, REMOVE THE STRUCTURE AND
SEDIMENT, SMOOTH THE DISTURBED AREA TO BLEND WITH ADJOINING AREAS, AND STABIUZE.
SEEDING DETAIL
WHEAT OR RYE
OATS
ANNUAL RYEGRASS
NON- IRRIGATED*
IRRIGATED
DORMANT
SEEDING
NOT NECESSARY WHERE MULCH IS APPLIED.
EROSION CONTROL BLANKET (SURFACE APPLIED) MAINTENANCE REQUIREMENTS:
1. DURING VEGETATIVE ESTABUSHMENT, INSPECT AFTER STORM EVENTS FOR ANY
EROSION BELOW THE BLANKET.
2. IF ANY AREA SHOWS EROSION, PULL BACK THAT PORTION OF THE BLANKET
COVERING IT, ADD SOIL, RE -SEED THE AREA, AND RE -LAY AND STAPLE THE BLANKET.
3. AFTER VEGETATIVE ESTABLISHMENT, CHECK THE TREATED AREA PERIODICALLY.
TEMPORARY GRAVEL CONSTRUCTION ENTRANCE MAINTENANCE REQUIREMENTS:
1. INSPECT ENTRANCE PAD AND SEDIMENT DISPOSAL AREA WEEKLY AND AFTER STORM
EVENTS OR HEAVY USE.
2. RESHAPE PAD AS NEEDED FOR DRAINAGE AND RUNOFF CONTROL.
3. TOP DRESS WITH CLEAN STONE AS NEEDED.
4. IMMEDIATELY REMOVE MUD AND SEDIMENT TRACKED OR WASHED ONTO PUBLIC ROADS
BY BRUSHING OR SWEEPING. FLUSHING SHOULD ONLY BE USED IF THE WATER IS
CONVEYED INTO A SEDIMENT TRAP OR BASIN.
5. REPAIR ANY BROKEN ROAD PAVEMENT IMMEDIATELY.
TEMPORARY SEEDING DATES
JAN
FEB
MAR
APR MAY
JUN
JUL
AUG SEP OCT
NOV
DEC
PERMANENT SEEDING DATES
JAN
FEB
MAR APR MAY JUN JUL AUG SEP
:2%
OCT
NOV DEC
IRRIGATION NEEDED DURING THIS PERIOD. TO CONTROL
EROSION AT TIMES OTHER THAN IN THE SHADED AREAS.
USE MULCH.
LATE SUMMER SEEDING DATES MAY BE EXTENDED 5 DAYS
IF MULCH IS APPLIED.
INCREASE SEEDING APPUCATION BY 50
NATIVE MATERIAL
(OPTIONAL)
U)
w
B
10 MIL
PLASTIC LINING
STAPLES 10 MIL
(2 PER BALE) PLASTIC LINING
SILT FENCE
x
X
x
TYPICAL TOPSOIL STOCKPILE
10' MIN.
PLAN
TYPE "ABOVE GRADE"
WITH STRAW BALES
SECTION B -B
f 10'
TYPICAL
NOT TO SCALE
B
X
SEEDING
NORTH AMERICAN GREEN
EROSION CONTROL MATTING DETAIL
NOT TO SCALE
STAKE (TYP.)
ii
BINDING WIRE
pi
EXISTING GRADE
STRAW BALE (TYP.)
STRAW BALE
WOOD OR METAL
STAKES (2 PER BALE)
12" MINIMUM
THICKNESS
#2 COARSE
AGGREGATE
CONCRETE WASHOUT BMP
NOT TO SCALE
W I
6" MIN. TURN DOWN
EROSION CONTROL BLANKET
(NORTH AMERICAN GREEN
OR EQUAL)
CONCRETE WASHOUT
SIGN DETAIL
(OR EQUIVALENT)
GEOTEXTILE FABRIC TO STABILIZE
FOUNDATION ESPECIALLY IMPORTANT
WHERE WETNESS IS ANTICIPATED)
TEMPORARY CONSTRUCTION ENTRANCE
NOT TO SCALE
1
STEEL WIRE -n
STAPLE DETAIL
PLYWOOD
48" X 24"
PAINTED WHITE
BLACK LETTERS
6" HEIGHT
WOOD POST
3 "X3 "X8'
Sp.
NOTES;
1. ACTUAL LAYOUT DETERMINED
IN FIELD.
2. THE CONCRETE WASHOUT SIGN
SHALL BE INSTALLED WITHIN
30 FT. OF THE TEMPORARY
CONCRETE WASHOUT FACILITY
3
THE BLANKET SHOULD NOT BE STRETCHED
BUT ALLOWED TO LAY LOOSELY ON THE
SOIL SURFACE TO ACHIEVE MAXIMUM
BLANKET TO SOIL CONTACT.
1
THE EDGES OF THE BLANKET SHOULD BE
BUTTED AGAINST EACH OTHER, THE EDGES OF
THE SCC225 SHOULD BE OVERLAPPED 2
5
IN HIGH VELOCITY CHANNEL APPLICATIONS,
CHECK SLOTS SHOULD BE ESTABLISHED
EVERY 35 40'. THE SLOTS SHOULD BE
6" WIDE BY 6" DEEP WITH THE BLANKET
STAPLED IN THE BOTTOM OF THE SLOT,
THEN BACKFILLED AND SEEDED.
SAND BAGS
NOTES;
1. SANDBAGS TO CONSIST OF BURLAP OR WOVEN
GEOTEXTILE FABRIC, MUST BE FILLED WITH
GRAVEL, LAYERED AND PACKED TIGHTLY.
2. SANDBAGS TO BE STACKED TWO OR THREE HIGH.
3. ONE SANDBAG TO BE LEFT OUT OF TOP ROW TO
PROVIDE A SPILLWAY FOR OVERFLOW.
4. SANDBAGS TO BE USED AFTER PAVEMENT INSTALLATION.
PRIOR TO PAVEMENT INSTALLATION, STRAW BALE
PROTECTION IS TO BE USED.
5. SANDBAGS TO BE PLACED AROUND NEW DRAINAGE
STRUCTURES TO PREVENT SILT AND DEBRIS FROM
ENTERING DOWNSTREAM DRAINAGE FACILITIES.
SANDBAGS SHALL BE MAINTAINED UNTIL ALL SITE
WORK IS COMPLETE.
STORM INLET SAND
BAG PROTECTION
NOT TO SCALE
NON WOVEN
GEOTEXTILE
FABRIC
EXTEND FABRIC
TO 4" BELOW
SURFACE
FILTER FABRIC
FLOW
WOOD POST
7
T) ROLL BLANKETS
OUT IN DIRECTION
OF WATER LOW.
EROSION BLANKET INSATLLATION
SPACE POSTS PER
RECOMMENDATIONS
NOT TO SCALE
2 STAKES (TTYP)
PER L
COMPACTED SOIL
TO PREVENT PIPING
SILT FENCE CONSTRUCTION
NOT TO SCALE
STAKED
STRAW BALE
\‘4
2
ON SLOPE APPLICATIONS, THE TOP OF THE BLANKET
SHOULD BE "SLOTTED IN" ABOVE THE BREAK OF THE
SLOPE OR AT A MINIMUM, STAPLED IN PLACE WITH
STAPLES 6" APART ON THE END OF THE BLANKET.
4
ON LONG SLOPES, THE ENDS OF
THE BLANKETS SHOULD BE
OVERLAPPED 4 6" IN A
"SHINGLE EFFECT".
6
PREPARATION OF THE SEED BED, INCLUDING
APPLICATION OF LIME, FERTILIZER AND SEED
SHOULD BE CONDUCTED AS NORMAL PRIOR TO
INSTALLATION OF BLANKET.
PLAN
o.
4
a
SECTION
STORM INLET STRAW
BALE PROTECTION
NOT TO SCALE
/x/, /7//
NOTE:
POSTS SHALL HAVE A MINIMUM LENGTH OF
36 INCHES PLUS BURIAL DEPTH. POST MATERIAL
SHALL BE WOOD, STEEL, OR SYNTHETIC, AND SHALL
BE OF SUFFICIENT STRENGTH TO RESIST DAMAGE
DURING INSTALLATION AND TO SUPPORT APPLIED
LOADS.
FABRIC SHALL BE A WOVEN GEOTEXTILE FABRIC
CONSISTING OF STRONG, ROT RESISTANT,
MATERIALS RESISTANT TO DETERIORATION FROM
ULTRAVIOLET AND HEAT EXPOSURE.
BINDINGS FOR STRAW BALES
TO BE PLACED PARALLEL
TO GROUND
-STORM INLET
STRUCTURE
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STATE OF
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DATE:
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CEC PROJECT NUMBER
051872
DRAWING NUMBER
C5.1
SHEET 8 OF 16
EROSION
SOIL
CONDITION
SHADE
TOLERANCE
CLOSE MOWING
L TO 2-3 1/2 INCHES
TRAMPING
TOLERANCE
FERTILITY
NEEDS
WINTER
HARDINESS
FLOODING
TOLERANCE (DAYS)
MATURE
HEIGHT (INCHES)
EMERGENCE
TIME (DAYS)
SOIL
TOLERANCE
WET
NORM
DRY
GEN.
SOIL
SPRAY
CREEPING RED FESCUE
FESTUCA RUBRA
2
1
2
1
1
1
MED.
1
20 -25
12 -18
7 -21
S
KENTUCKY BLUEGRASS
POA PROTINSIS
2
1
2
1
1
1
MED.
1
20 -35
12 -18
10 -20
MT
TALL FESCUE
FESTUCA L. ARUNDINACEA
2
1
1
1
1
1
LOW
1
24 -35
24 -36
5 -14
T
PERENNIAL RYEGRASS
LOLLUM PERENNE
2
1
2
1
2
MED.
HIGH
2
15 -20
12 -18
5 -10
MT
CROWNVETCH
CORONILLA VARLA
1
1
2
LOW
1
5 -10
24
14 -21
T
RED CLOVER
TRIFOUUM PROTENSE
1
2
MED.
1
7 -10
18
5 -10
S
S
,RANKING:
1 GOOD
2 MEDIUM
NOT TOLERANT
SEEDBED PREPARATION
APPLY UME TO RAISE Mt pM TO THE LEVEL NEEDED FOR SPECIES BEING
SEEDED. APPLY 23 POUNDS OF 12 -12 -12 ANALYSIS FERTILIZER (OR EQUIVALENT) PER
1000 SQ. FT. (APPROXIMATELY 1000 POUNDS PER ACRE) OR FERTILIZE ACCORDING TO
TEST. APPUCATION OF 150 LBS. OF AMMONIUM NITRATE ON AREAS LOW IN ORGANIC
MATTER AND FERTILITY WILL GREATLY ENHANCE VEGETATIVE GROWTH.
WORK THE FERTIUZER AND UME INTO THE SOIL TO A DEPTH OF 2 -3 INCHES
WITH A HARROW, DISK OR RAKE OPERATED ACROSS THE SLOPE AS MUCH AS POSSIBLE.
SEEDING
SELECT A SEED MIXTURE BASED ON PROJECTED USE OF THE AREA (SEE
PERMANENT SEED MIXTURE CHART). WHILE CONSIDERING BEST SEEDING DATES.
IF PERMANENT SEEDING IS NOT PERMITTED USE TEMPORARY SEEDING
UNTIL PERMANENT SEEDING CAN BE APPLIED. IF TOLERANCES ARE A PROBLEM, SUCH AS
SALT TOLERANCE OF SEEDINGS ADJACENT TO STREETS AND HIGHWAYS, SEE
SEED TOLERANCE CHART.
SALT TOLERANCE (TO BOTH SOIL SALTS SPRAY)
T TOLERANCE
MT MEDIUM TOLERANCE
S SLIGHT TOLERANCE
SEED TOLERANCE
1 PREFERRED 2 WILL TOLERATE INOCULATE WITH SPECIFIC INOCULANT.
SEED TOLERANCE CHART
EROSION CONTROL MEASURES MAINTENANCE REQUIREMENTS
STRAW BALE DAM MAINTENANCE REQUIREMENTS:
1. INSPECT STRAW BALE DAMS AFTER EACH STORM EVENT AND PROMPTLY REMOVE ANY
SEDIMENT DEPOSITS TO ENSURE ADEQUATE STORAGE VOLUME FOR THE NEXT RAIN,
TAKING CARE NOT TO UNDERMINE THE ENTRENCHED BALES.
2. INSPECT PERIODICALLY FOR DETERIORATION OR DAMAGE FROM CONSTRUCTION
ACTIVITIES AND REPAIR IMMEDIATELY.
3. AFTER THE CONTRIBUTING DRAINAGE AREA HAS BEEN STABIUZED, REMOVE ALL
STRAW BALES AND SEDIMENT, BRING THE DISTURBED AREA TO GRADE, AND STABIUZE IT.
SILT FENCE MAINTENANCE REQUIREMENTS:
1. INSPECT THE SILT FENCE PERIODICALLY AND AFTER EACH STORM EVENT.
2. IF FENCE FABRIC TEARS, STARTS TO DECOMPOSE, OR IN ANY WAY BECOMES
INEFFECTIVE, REPLACE THE AFFECTED PORTION IMMEDIATELY.
3. REMOVE DEPOSITED SEDIMENT WHEN IT REACHES HALF THE HEIGHT OF THE FENCE AT
ITS LOWEST POINT OR IS CAUSING THE FABRIC TO BULGE.
4. TAKE CARE TO AVOID UNDERMINING THE FENCE DURING CLEAN OUT.
5. AFTER THE CONTRIBUTING DRAINAGE AREA HAS BEEN STABIUZED, REMOVE THE FENCE
AND SEDIMENT DEPOSITS, BRING THE DISTURBED AREA TO GRADE, AND STABIUZE.
TEMPORARY SEDIMENT TRAP MAINTENANCE REQUIREMENTS:
1. INSPECT TEMPORARY SEDIMENT TRAPS AFTER EACH STORM EVENT IMMEDIATELY
REPAIR ANY EROSION AND PIPING HOLES.
2. REMOVE SEDIMENT WHEN IT HAS ACCUMULATED TO ONE -HALF THE DESIGN DEPTH.
3. REPLACE SPILLWAY GRAVEL FACING IF CLOGGED.
4. INSPECT VEGETATION, AND RE -SEED IF NECESSARY.
5. CHECK THE SPILLWAY DEPTH PERIODICALLY TO ENSURE A MINIMUM OF 1.5 FT. DEPTH
FROM THE LOWEST POINT OF THE SETTLED EMBANKMENT TO HIGHEST POINT OF THE
SPILLWAY CREST, AND FILL ANY LOW AREAS TO MAINTAIN DESIGN ELEVATION.
6. PROMPTLY REPLACE ANY DISPLACED RIP RAP, BEING CAREFUL THAT NO STONES IN THE
SPILLWAY ARE ABOVE DESIGN GRADE.
7. AFTER ALL DISTURBED AREAS HAVE BEEN STABIU;ZED, REMOVE THE STRUCTURE AND
SEDIMENT, SMOOTH THE DISTURBED AREA TO BLEND WITH ADJOINING AREAS, AND STABIUZE.
SEEDING DETAIL
WHEAT OR RYE
OATS
ANNUAL RYEGRASS
NON- IRRIGATED*
IRRIGATED
DORMANT
SEEDING
NOT NECESSARY WHERE MULCH IS APPLIED.
EROSION CONTROL BLANKET (SURFACE APPLIED) MAINTENANCE REQUIREMENTS:
1. DURING VEGETATIVE ESTABUSHMENT, INSPECT AFTER STORM EVENTS FOR ANY
EROSION BELOW THE BLANKET.
2. IF ANY AREA SHOWS EROSION, PULL BACK THAT PORTION OF THE BLANKET
COVERING IT, ADD SOIL, RE -SEED THE AREA, AND RE -LAY AND STAPLE THE BLANKET.
3. AFTER VEGETATIVE ESTABLISHMENT, CHECK THE TREATED AREA PERIODICALLY.
TEMPORARY GRAVEL CONSTRUCTION ENTRANCE MAINTENANCE REQUIREMENTS:
1. INSPECT ENTRANCE PAD AND SEDIMENT DISPOSAL AREA WEEKLY AND AFTER STORM
EVENTS OR HEAVY USE.
2. RESHAPE PAD AS NEEDED FOR DRAINAGE AND RUNOFF CONTROL.
3. TOP DRESS WITH CLEAN STONE AS NEEDED.
4. IMMEDIATELY REMOVE MUD AND SEDIMENT TRACKED OR WASHED ONTO PUBLIC ROADS
BY BRUSHING OR SWEEPING. FLUSHING SHOULD ONLY BE USED IF THE WATER IS
CONVEYED INTO A SEDIMENT TRAP OR BASIN.
5. REPAIR ANY BROKEN ROAD PAVEMENT IMMEDIATELY.
TEMPORARY SEEDING DATES
JAN
FEB
MAR
APR MAY
JUN
JUL
AUG SEP OCT
NOV
DEC
PERMANENT SEEDING DATES
JAN
FEB
MAR APR MAY JUN JUL AUG SEP
:2%
OCT
NOV DEC
IRRIGATION NEEDED DURING THIS PERIOD. TO CONTROL
EROSION AT TIMES OTHER THAN IN THE SHADED AREAS.
USE MULCH.
LATE SUMMER SEEDING DATES MAY BE EXTENDED 5 DAYS
IF MULCH IS APPLIED.
INCREASE SEEDING APPUCATION BY 50
NATIVE MATERIAL
(OPTIONAL)
U)
w
B
10 MIL
PLASTIC LINING
STAPLES 10 MIL
(2 PER BALE) PLASTIC LINING
SILT FENCE
x
X
x
TYPICAL TOPSOIL STOCKPILE
10' MIN.
PLAN
TYPE "ABOVE GRADE"
WITH STRAW BALES
SECTION B -B
f 10'
TYPICAL
NOT TO SCALE
B
X
SEEDING
NORTH AMERICAN GREEN
EROSION CONTROL MATTING DETAIL
NOT TO SCALE
STAKE (TYP.)
ii
BINDING WIRE
pi
EXISTING GRADE
STRAW BALE (TYP.)
STRAW BALE
WOOD OR METAL
STAKES (2 PER BALE)
12" MINIMUM
THICKNESS
#2 COARSE
AGGREGATE
CONCRETE WASHOUT BMP
NOT TO SCALE
W I
6" MIN. TURN DOWN
EROSION CONTROL BLANKET
(NORTH AMERICAN GREEN
OR EQUAL)
CONCRETE WASHOUT
SIGN DETAIL
(OR EQUIVALENT)
GEOTEXTILE FABRIC TO STABILIZE
FOUNDATION ESPECIALLY IMPORTANT
WHERE WETNESS IS ANTICIPATED)
TEMPORARY CONSTRUCTION ENTRANCE
NOT TO SCALE
1
STEEL WIRE -n
STAPLE DETAIL
PLYWOOD
48" X 24"
PAINTED WHITE
BLACK LETTERS
6" HEIGHT
WOOD POST
3 "X3 "X8'
Sp.
NOTES;
1. ACTUAL LAYOUT DETERMINED
IN FIELD.
2. THE CONCRETE WASHOUT SIGN
SHALL BE INSTALLED WITHIN
30 FT. OF THE TEMPORARY
CONCRETE WASHOUT FACILITY
3
THE BLANKET SHOULD NOT BE STRETCHED
BUT ALLOWED TO LAY LOOSELY ON THE
SOIL SURFACE TO ACHIEVE MAXIMUM
BLANKET TO SOIL CONTACT.
1
THE EDGES OF THE BLANKET SHOULD BE
BUTTED AGAINST EACH OTHER, THE EDGES OF
THE SCC225 SHOULD BE OVERLAPPED 2
5
IN HIGH VELOCITY CHANNEL APPLICATIONS,
CHECK SLOTS SHOULD BE ESTABLISHED
EVERY 35 40'. THE SLOTS SHOULD BE
6" WIDE BY 6" DEEP WITH THE BLANKET
STAPLED IN THE BOTTOM OF THE SLOT,
THEN BACKFILLED AND SEEDED.
SAND BAGS
NOTES;
1. SANDBAGS TO CONSIST OF BURLAP OR WOVEN
GEOTEXTILE FABRIC, MUST BE FILLED WITH
GRAVEL, LAYERED AND PACKED TIGHTLY.
2. SANDBAGS TO BE STACKED TWO OR THREE HIGH.
3. ONE SANDBAG TO BE LEFT OUT OF TOP ROW TO
PROVIDE A SPILLWAY FOR OVERFLOW.
4. SANDBAGS TO BE USED AFTER PAVEMENT INSTALLATION.
PRIOR TO PAVEMENT INSTALLATION, STRAW BALE
PROTECTION IS TO BE USED.
5. SANDBAGS TO BE PLACED AROUND NEW DRAINAGE
STRUCTURES TO PREVENT SILT AND DEBRIS FROM
ENTERING DOWNSTREAM DRAINAGE FACILITIES.
SANDBAGS SHALL BE MAINTAINED UNTIL ALL SITE
WORK IS COMPLETE.
STORM INLET SAND
BAG PROTECTION
NOT TO SCALE
NON WOVEN
GEOTEXTILE
FABRIC
EXTEND FABRIC
TO 4" BELOW
SURFACE
FILTER FABRIC
FLOW
WOOD POST
7
T) ROLL BLANKETS
OUT IN DIRECTION
OF WATER LOW.
EROSION BLANKET INSATLLATION
SPACE POSTS PER
RECOMMENDATIONS
NOT TO SCALE
2 STAKES (TTYP)
PER L
COMPACTED SOIL
TO PREVENT PIPING
SILT FENCE CONSTRUCTION
NOT TO SCALE
STAKED
STRAW BALE
\‘4
2
ON SLOPE APPLICATIONS, THE TOP OF THE BLANKET
SHOULD BE "SLOTTED IN" ABOVE THE BREAK OF THE
SLOPE OR AT A MINIMUM, STAPLED IN PLACE WITH
STAPLES 6" APART ON THE END OF THE BLANKET.
4
ON LONG SLOPES, THE ENDS OF
THE BLANKETS SHOULD BE
OVERLAPPED 4 6" IN A
"SHINGLE EFFECT".
6
PREPARATION OF THE SEED BED, INCLUDING
APPLICATION OF LIME, FERTILIZER AND SEED
SHOULD BE CONDUCTED AS NORMAL PRIOR TO
INSTALLATION OF BLANKET.
PLAN
o.
4
a
SECTION
STORM INLET STRAW
BALE PROTECTION
NOT TO SCALE
/x/, /7//
NOTE:
POSTS SHALL HAVE A MINIMUM LENGTH OF
36 INCHES PLUS BURIAL DEPTH. POST MATERIAL
SHALL BE WOOD, STEEL, OR SYNTHETIC, AND SHALL
BE OF SUFFICIENT STRENGTH TO RESIST DAMAGE
DURING INSTALLATION AND TO SUPPORT APPLIED
LOADS.
FABRIC SHALL BE A WOVEN GEOTEXTILE FABRIC
CONSISTING OF STRONG, ROT RESISTANT,
MATERIALS RESISTANT TO DETERIORATION FROM
ULTRAVIOLET AND HEAT EXPOSURE.
BINDINGS FOR STRAW BALES
TO BE PLACED PARALLEL
TO GROUND
-STORM INLET
STRUCTURE
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PE10403858
STATE OF
,AS L S /ONA
DATE:
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CEC PROJECT NUMBER
051872
DRAWING NUMBER
C5.1
SHEET 8 OF 16
EROSION