13-748-053CONSTRUCTION SPECIFICATIONS:
SHEET FLOW APPLICATI ❑Ni BALED HAY C�
1. BALES SHALL BE PLACED IN A SINGLE ROW, LENGTHWISE ON
THE CONTOUR, WITH ENDS OF ADJACENT BALES TIGHTLY
ABUTTING EACH OTHER. �?
2. ALL BALES SHALL BE EITHER WIRE -BOUND OR STRING -TIED. d-
STRAW BALES SHALL BE INSTALLED SO THAT BINDINGS ARE
ORIENTED AROUND THE SIDES RATHER THAN ALONG THE TOPS Q In
AND BOTTOMS OF THE BALES (IN ORDER TO PREVENT "o 9 (3)
LBED STRAW BALE DETERIORATION OF THE BINDINGSX Z [r 1
4` MIN. INTO S❑IL — 0 t1ri
3, THE BARRIER SHALL BEENTRENCHED AND BACKFILLED. A TRENCH j z
SHALL BE EXCAVATED THE WIDTH OF A BALE AND THE LENGTH z -i CV
OF THE PROPOSED BARRIER TO A MINIMUM DEPTH OF 4 INCHES
(10 cm). AFTER THE BALES ARE STAKED AND CHINKED, THE z <
EXCAVATED SOIL SHALL BE BACKFILLED AGAINST THE BARRIER. ® J LO
BACKFILLED SOIL SHALL CONFORM TO THE GROUND LEVEL ON S 0
THE DOWNHILL SIDE AND SHALL BE BUILT UP TO 4 INCHES (10 R �° Q
cm) AGAINST THE UPHILL SIDE OF THE BARRIER. 0 �--
EACH BALE SHALL BE SECURELY ANCHORED BY AT LEAST TWO Z x
4. 2' X 2' (5 cm X 5 cm) MINIMUM WOODEN STAKES OR TWO #5
(16 MM MINIMUM KEBABS AT LEAST 3 FEET (0.9 M.0 DRIVEN N
PROVIDE �TIGHT FIT THROUGH THE BALE. THE FIRST STAKE IN EACH SHALL BE �.{ m 0 uj <
DRIVEN TOWARD THE PREVIOUSLY LAID BALE TO FORCE THE PLACE THE END POST 0
In BALES TOGETHER. STAKES OR REBARS SHALL BE DRIVEN DEEP �.— OF THE SECOND FENCE ro
ENOUGH INTO THE GROUND TO SECURELY ANCHOR THE BALES. INSIDE THE END POST
STRAW BALE BARRIERS PLACED ON PAVED SURFACES MAY BE ffi±B OF THE FIRST FENCE ® LLJ
SECURED BY PLACING HEAVY SANDBAGS ON TOP, AND /OR BY
BRACING WITH 2 X 4'S (5 x 10 cm).
� ROTATE BOTH POSTS AT � �
THE GAPS BETWEEN BALES SHALL BE CHINKED (FILLED BY LEAST 180 DEGREES IN a 0
A 5. WEDGING) WITH STRAW TO PREVENT WATER FROM ESCAPING CLOCKWISE DIRECTION TO
BETWEEN THE BALES, LOOSE STRAW SCATTERED OVER THE CREATE A TIGHT SEAL WITH co
AREA IMMEDIATELY UPHILL FROM A STRAW BALE BARRIER TENDS THE FABRIC MATERIAL
TO INCREASE BARRIER EFFICIENCY. _Z Li
SECTI ❑N B ODDEN STAKE
OR REBAR DRIVEN WHEN BALES ARE INSTALLED AT THE TOE OF A SLOPE, THEY DIRECTION OF RUNOFF WATERS Lr
THROUGH BALE SHOULD BE PLACED AWAY FROM THE SLOPE FOR INCREASED im 14 W
6° STORAGE CAPACITY. DRIVE BOTH POSTS ABOUT 14 W
3 INSPECTION SHALL BE FREQUENT AND REPAIR OR REPLACEMENT 10 INCHES INTO THE Z
® o Z SHALL BE MADE PROMPTLY AS NEEDED. �, GROUND AND BURY FLAP J N
STRAW BALE BARRIERS SHALL BE REMOVED WHEN THEY HAVE
8. AREAS HAVEIB BEEN PERMANENTLY STABILIZED THE UPSLOPE SILT FENCE ATTAGMMENT DETAIL W z
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MAINTENANCEe
1. STRAW BALE BARRIERS SHALL BE INSPECTED IMMEDIATELY
AFTER EACH RAINFALL AND AT LEAST DAILY DURING PROLONGED
RAINFALL.
2.
PLAN CLOSE ATTENTION SHALL BE PAID TO THE REPAIR OF DAMAGED
BALES, END RUNS AND UNDERCUTTING BENEATH BALES.
NOTES, ❑ NECESSARY REPAIRS TO BARRIERS ❑R REPLACEMENT ❑F BALES PROPOSED INLET
SHALL BE ACCOMPLISHED PROMPTLY. OPEN RISER PROJECT. OWNER:
L THE STRAW BALES SHALL BE PLACED 4.
SIDEWALK-
ON SLOPE CONTOUR. SEDIMENT DEPOSITS SHOULD BE REMOVED AFTER EACH
2. BALES TO BE PLACED IN A ROW WITH THE RAINFALL. THEY MUST BE REMOVED WHEN THE LEVEL OF TEMP. DRAIN C � —CH - ---
ENDS TIGHTLY ABUTTING. USE STRAW, ROCKS, DEPOSITION REACHES APPROXIMATELY ONE -HALF THE HEIGHT OF DITCH
0R FILTER FABRIC TO FILL GAPS BETWEEN THE 5. THE BARRIER. GUTTER
�`
CURB do GUTTER
PLATE 4.05D STRAW BALE BARRIER BALES AND TAMP THE BACKFILL MATERIAL TO
SOURCE` EROSION DRAW PEREVENT EROSION OR FLOW AROUND BALES. ANY SEDIMENT DEPOSITS REMAINING IN PLACE AFTER THE
STRAW BALE BARRIER IS NO LONGER REQUIRED SHALL BE
DRESSED TO CONFORM TO THE EXISTING GRADE, PREPARED, AND
SEEDED.
BALED HAY OR STRAW SILT A R R I E R S
N.T.S.
DIVERSION RIDGE
(REQUIRED WHEN GRADE EXCEEDS 2%)
2% OR GREATER
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NOTE:
USE .r,, ., #.
# APPROVED METHODS TO
CHANELIZE RUNOFF TO BASIN
AS REQUIRED
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EXTRA STRENGTH FILTER FABRIC
NEEDED WITHOUT WIRE MESH SUPPORT
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,AV AM l/%.�
PONDING HT
FILTER FABRIC
,,---ATTACH SECURELY
TO UPSTREAM
SIDE OF POST
RUNOFF
=
4' X 6' TRENCH
WITH COMPACTED
BACKFILL
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ALTERNATE DETAIL
TRENCH _C� - 9 I III GRAVEL
INSTALLATION SILT FENCE
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NOTE,
1. INSPECT AND REPAIR FENCE AFTER EACH
RUNOFF STORM EVENT AND REMOVE SEDIMENT WHEN
NECESSARY.
• • • • 2. REMOVED SEDIMENT SHALL BE DEPOSITED
TO AN AREA THAT WILL NOT CONTRIBUTE
B' SEDIMENT OFF -SITE AND CAN BE PERMANENTLY
° STABILIZED.
MIN
3. SILT FENCE SHALL BE PLACED ON SLOPE
CONTOURS TO MAXIMIZE PONDING EFFICIENCY.
ALTERNATE DETAIL
TRENCH _C� - 9 I III GRAVEL
INSTALLATION SILT FENCE
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