FLOOD06430

• County: Statewide
• Basin: Statewide
• Title: Conduits, Culverts and Pipes
• Date: 3/3/1969
• Prepared By: US Army Corps of Engineers
• Floodplain - Doc Type: Educational/Technical/Reference Information

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RM 1110-2-2902. Appendix III, 3 Mar 1969

_ ~Backfill untampe/d~.
o/?Tpqw~~ 'o/'\'o/T-rm,A

o p", - _0__ -~-

foundation not
t'ormed to fit Shallow earth cushion

IMPERMISSIBLE PIPE LAYING METHODS FOR DITCHES

c
'E
~

Granular materials, placed and tamped by shovel
~-r)7~Q9'"~

~--O

& l1." ." fl_ of H,
Cushion when Hc > 16 ft.

0.5 be min.
Foundation formed to fit
for full length of section

ORDINARY PIPE LAYING METHODS FOR DITCHES

~GranUlar materials,carefully placed by hand and
thoroughly tamped in loyers not exceeding 6"4
As norrow os '
I" i7"p-o/?--r/,7, practicable o/,-p-o//.I?} ~/,7,
bock fill quoli

c
'E
=
~

0.6 be min.
Foundation formed to fit
for full length of section.

c
E
...

.5
E
CD

He = depth of fill over top of pipe

FIRST CLASS PIPE LAYING METHODS FOR DITCHES

BEDDINGS FOR PIPES
DITCH CONDITIONS

PLATE II

I1I-23