TM 5-850-1
(2)
Timber structures.
No special
tions. Shear connectors may consist of wide flange
provisions are required.
sections cased in slip sleeves.
c. Wind screens. Where sheltering in the form of
(3) Spacing. Make the spacing as large as
buildings or similar features is lacking at a given site,
possible but do not exceed 600 feet. Piling should be
and where exposure is severe, wind screens may be
checked for bending due to longitudinal expansion
used to reduce difficulties of berthing.
caused by temperature changes.
d. Relation to upland facilities. Switch yards and
b. Future expansion. Where consideration is being
turnarounds may be provided in close proximity to the
given to constructing a pier in stages, provide the
inshore ends of piers.
following details in the structure to facilitate future
e. Navigation aids.
Detailed information is
expansions:
(1) Concrete structures.
Leave dowel bars
provided in U.S. Coast Guard Booklet CG-208, Aids to
Navigation Regulations (see app A). A foghorn is
projecting from first-stage construction. Dowel bars
needed and fog lights should be provided on pier ends.
should be enameled and wrapped for anchor rods.
Leave keys in abutting faces, and let pile caps project
beyond pier edges. Use timber instead of concrete
curbs on the side or end for future enlargement.
8-3
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