CEMP-E
TI 850-02
AFMAN 32-1125(I)
1 MARCH 2000
2) Grading in the Administration Area to keep water from standing within the roadbed.
3) Installation of culverts and related earthwork in washout areas on the Main Line.
Due to the nature of the drainage in the Administration Area and in the washout areas, it may not be
practical to implement a solution that will entirely correct the problems. A plan that will greatly improve
the situation may suffice.
Especially after heavy rains (such as were experienced last summer), water stands in the track in the
Administration Area. Apparently, a drainage system was never installed here, and providing one now
may be quite expensive.
It is recommended that consideration be given to at least providing some grading so that water will tend
to flow away from the track into adjacent lowered areas. While this solution will not eliminate the standing
water in this area, it could at least prevent it from standing in the track, where it would do the most
damage.
In selected areas along the Main Line (especially between Sta. 162+80 and 169+70) ballast and
subgrade have been washed out from beneath the track on several occasions. These areas are located
in the natural drainage path of heavy rain runoff. While preventing all runoff from reaching the track may
not be affordable, it is recommended that remedial work be considered that will at least prevent the water
that does reach the track from causing any roadbed damage. Such work might include:
1)
Install a culvert (perhaps double pipe) beneath the track, at the center of the washout area.
Grade adjacent area to channel water through the culvert. Place large rock near the culvert
approach to prevent erosion.
C-25
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