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 — (