U.S. ARMY ENGINEER DIVISION, PACIFIC OCEAN
CORPS
PROJECT TITLE
LOCATION
DRAWING (S) NO.
OF
ENGINEERS
__Fnewetak Cleanup
SH NO:.2__oF___2_
ss
SECTION
COMPUTED BY__KVK___ CAT ELONov/6_ CHECKED BY
DATE
DESIGN ANALYSIS
b.
This is contrary to our previous assumption,
Based on present tn-
formation on foundation material, the design wave condition would he expected
to produce scour at the toe of the cut-off wall.
depth of scour could be as much as 5 feet.
It is estimated that the
It is not anticipated that
scour will be progressive rather material would be expected to he returned
to the scour areas by natural processes over a period of time following
the occurrence of major storms.
5.
DESIGN RECOMMENDATIONS.
a.
Extend cut-off wall 8 feet below existing ground surface.
OF fof|
b,
mo
“¥ tans.
Nexisting
CORAL.
REEF
Backfill to existing ground elevation around cut-off wall.
Use coral pieces 6" to 18" in diameter for backfill.
6.
OTHER CONSIDERATIONS.
If biological and chemical processes which promote cementation of
coral are sufficiently well understood, measures to promote the cementation
process in the backfill material around the outside of the cut-off wall
might be considered.
POD Form 115
} Jul 70
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(