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Extra info for Drainage Structures. Subgrades, and Base Courses
Example text
40 Details for a typical terrace provisation, using locally available materials, such drums, is frequently desirable and often saves tim tation. In some areas, large water pipes, sewer p full discussioi may be used. civilian materials A ormal length would be equal to the distance from the bottom le ditch on the upstream side to the bottom of the ditch on tl itlet side. To minimize scour at the downstream end, culver lould be 1 or 2 feet longer than required, with the added lengl In some instances, it will be necessai i the discharge end.
D< is measured from the culvert invert to the edge of th j. as shown (1) in figure 17. Minimum,. A general rule for the minimum road culverts is one-half the pipe diameter, or whichever is greater. However, where greate minimums are shown in table V the tabular govern. The minimum cover for pipe culver fields is selected from table IV, which is bai weight of the aircraft. rofisinir w fremi M U 'S Asbestos-cement pipe (Fed Spec SS-P-331b) Class 5000 fates. NL equals no limit. Values based on the following assumptions: 1.
C. Strength. Culvert extended beyond fill to prevent cronioii. The culvert must be strong enough to carry tl ^eight of the fill above it plus the weight of live loads that pa ver the road. To calculate the strength of a culvert requires nowledge of structural design which is beyond the scope of th well-nailed, spiked, driftpinned, bolted, or win Dgether, the culverts shown in figures 29 through 36 are stru arally sound enough to carry combat traffic, plus sand fills fro lanual. If to 10 feet deep.
Drainage Structures. Subgrades, and Base Courses by Department Of The Army
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