Division of Forest Resources Operational Plan for Watershed Protection, NCFS Jordan Lake Tract R-II Experimental Forest Compartment E

DIVISION OF FOREST RESOURCES
OPERATIONAL PLAN
FOR
WATERSHED PROTECTION, NCFS - JORDAN LAKE TRACT
R-II EXPERIMENTAL FOREST COMPARTMENT E

This plan mostly consists of improving old access roads.
Some new road construction is necessary. When complete,
all areas of the tract will be accessable by permanent,
all-weather roads having 12'-14' surfaces.

Stream Crossing #1
This is an old stream crossing that needs a culvert installed.
Watershed area above this crossing is approximately 18 acres
which will require a 24" diameter culvert to handle a 2.5
inch per hour rainfall (Talbot's Formula). The culvert will
need to be 30 feet long to allow for a road surface of 12' -
14' wide plus side fill slopes. Corrugated aluminium or
aluminized steel culvert is recommended.

Clean and shape the stream area before setting the culvert in
place. Do not lower the natural level of the channel bottom
as the culvert should be at the same level as the natural
stream bottom. The outlet end should be 3" or 4" below the
inlet end to provide a self-cleaning action. On -site fill
material, free of debris may be used to form the road bed
and as back fill over and around the culvert. A snug fit
around the pipe is necessary to provide support for the culvert

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side walls and prevent water seepage that could lead to eventual
wash-out of the entire crossing. To obtain a snug fit, apply
successive layers of back fill 6-8 inches thick and compact
thoroughly after each application. Height of fill above the
top of the culvert should be 12 inches. Fill for this crossing
will extend along the road 50' on both sides of the culvert, 3'
above the bottom of the stream channel and wide enough for a
12'-14' road surface. Total fill needed for this crossing is
approximately 182 tons.

Crushed stone 1"-11" in size, should be applied over the fill
to a depth of 4" as a final coat. Crushed stone needed here
is approximately 23 tons.

Stream Crossing #2
Again, this is an old stream crossing without the use of a
bridge or culvert. A 48" culvert is needed here to handle the
approximately 118 acre watershed up-stream from this crossing.
Corrugated aluminium or aluminized steel culvert 30' long, is
recommended. To achieve a level crossing, fill will need to
extend 100' to the north and 80' to the south from the culvert.
Depth of fill above the stream bottom will be 5.5' or 18" above
the top of the culvert. On-site fill material may be used.
Install the culvert following procedures mentioned above. A
total of 600 tons of fill material will be needed here topped
with a 4" layer of crushed stone totaling 53 tons. Stone should
be 1-11/2 inches in size.

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Stream Crossing #3
At this location there is a dry gully which probably was a road
or trail decades ago. A culvert, 15" by 4' long, is needed.
Use the same type as mentioned above. Minimal fill will be needed
here since the gully is narrow with near vertical sides. Twelve
inches of fill will be needed over the top of the culvert.
Follow procedures mentioned above when installing the culvert.

Water Diversions
During construction, water diversions should be installed.
Diversions may include broad based dips, water bars, turn
outs along ditches and out sloping. Out sloping (2-3% out
slope) should be used on all sections where the road follows
a gentle side hill area. This technique will avoid the need
for side ditches to transfer surface runoff. Where ditches
are installed, make maximum use of ditch turn outs to move
water away from the roadway. A water bar or broad based dip
diversion should be installled at the beginning of road slopes
and at intervals along extended sloping sections. These water
control measures move water off the traveled surface of the
road where they are properly installed and maintained. Quick
and effective removal of surface flow minimizes road bed dete-
rioration, soil erosion and stream degradation.

Road Stabilization
All disturbed areas, where not treated with crushed stone, should
be seeded to grass.

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General
To minimize soil exposure, soil movement and construction costs,
construct side ditches only as necessary. Where ditches are
needed, keep them as shallow as possible and slightly crown
the road surface to provide drainage. Leave the "cut bank"
of ditches near vertical unless more than 24" high. Prevent
"ponding" by constructing ditches that empty completely.
Maximize drying of road surfaces by eliminating shading trees
and brush. Routine road maintenance should include reshaping
road surfaces as ruts begin to develop, eliminating wet spots
with improved drainage, freeing ditch and culvert areas of
debris and reseeding bare soil areas early. Protect the road
from abuse, by closing the road to traffic prior to establishing
good vegetative cover and avoid using when soils are very wet
or saturated.

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MATERIALS ACOST ESTIMATE

**
one 15" x 40' *culvert @ $7.29/ft., 16 gage $ 291.60
one 15" connector band 7.29
one 24" x 30' cluvert @ $11.54/ft., 16 gage 346.20
one 24" connector band 11.54
one 48" x 30' culvert (12 gage) @ $33.75/ft. 1012.50
one 48" connector band (12 gage) 33.75
111 tons crushed stone, 1-1.5" @ $5/ton F.O.B. Quarry 555.00
200 lb. grass seed @ $0.32/lb. 64.00
2 tons fertilizer @ $10/100 lb. 400.00
10 tons lime @ $3/100 lb. 600.00
200 bales mulch, wheat straw, $2.75/bale 550.00
782 tons fill dirt (on site material) NA
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$ 3871.88

* All culvert is corrugated, aluminized steel

* * Prices F.O.B. west Raleigh, Armco Plant