20150959 Ver 1_More Info Received_20151006 (4)

/Berm and trench
i
Farm g
Cross - section
F. Course aggregate
k'Sr ;9 Crusher run stone (ABC stone)
Stre
Geotextile fabric
eat ;on
Plan View
Course aggregate
Crusher run stone (ABC stone)
Notes:
1) Geotextile fabric shall be non -woven material with a minimum tensile
strength of 150 Ibs and a minimum weigh tof 6 oz per square yard.
2) When one than one width of geotextile is required, the downstream panel
shall be installed first.
3) Anchoring pins (12 -15 in) shall be placed through the geotextile in all
excavated trenches, overlapped fabric and across the width of the channel on 3
de slopes ft centers.
4) Stone surfacing shall be no higher than the lowest point in the stable natural
channel. Surfacing material shall consist of crusher run aggregate (ABC stone).
5) Surfacing material will be spread such that a minimum of 6 in of cover
exists on the geotextile before tracked equipment is operated over it.
6) Start at existing toe and extend the flat portion of the crossing into the
bank 2 ft before starting the minimum 5:1 slope up and out of the stream
channel.
7) Surface runoff shall be diverted around the entrance and exit slopes to
prevent erosion of surfacing materials.
8) Excavated side slopes on entrance and exit ramps shall have a slope of 2:1
or flatter.
9) In stream floor where course rock and /or gravel exist, no crusher run
aggregate will be used to line low flow channel bottom.
Typical Livestock Crossing (Ford) Installation Detail
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Plan View
Course aggregate
Crusher run stone (ABC stone)
Notes:
1) Geotextile fabric shall be non -woven material with a minimum tensile
strength of 150 Ibs and a minimum weigh tof 6 oz per square yard.
2) When one than one width of geotextile is required, the downstream panel
shall be installed first.
3) Anchoring pins (12 -15 in) shall be placed through the geotextile in all
excavated trenches, overlapped fabric and across the width of the channel on 3
de slopes ft centers.
4) Stone surfacing shall be no higher than the lowest point in the stable natural
channel. Surfacing material shall consist of crusher run aggregate (ABC stone).
5) Surfacing material will be spread such that a minimum of 6 in of cover
exists on the geotextile before tracked equipment is operated over it.
6) Start at existing toe and extend the flat portion of the crossing into the
bank 2 ft before starting the minimum 5:1 slope up and out of the stream
channel.
7) Surface runoff shall be diverted around the entrance and exit slopes to
prevent erosion of surfacing materials.
8) Excavated side slopes on entrance and exit ramps shall have a slope of 2:1
or flatter.
9) In stream floor where course rock and /or gravel exist, no crusher run
aggregate will be used to line low flow channel bottom.
Typical Livestock Crossing (Ford) Installation Detail