Underwater Facilities Inspections and Assessments at Naval Station, Adak, Alaska.
Abstract
Commencing 16 July 1980 UCT TWO Det Adak inspected the runway centerline approach lights at Naval Station Adak, Alaska. The inspection data is referenced to Y & D drawing number 1,090,364, sheet 2 of 11. The runway approach light support pilings are 16 inch diameter creosote treated timber piles with tar impregnated burlap cap covers. There were a total of 10 bents with four vertical and four batter piles per bent. A total of 56 piles were inspected from mud line to the high water mark. Since no as-built drawings were available a numbering system was established in which bents were numbered 1 - 10 going shoreward and batter piles lettered consecutively (see attached sketch). From the mud line to the high water mark, all piles appear in excellent condition. There exists a moderate growth of barnacles, and sea anemones and heavy kelp growth in the splash zone. Of the 56 piles, five had moderate damage ranging from evidence of marine borers to structural damage from apparent dredge cutter head contact or ship impact. Inspection sheets of all piles are attached as tab (A) of this enclosure. A sketch of pile placement and the numbering system used on the data sheets is included as tab (B).
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 01, 1980
- Accession Number
- ADA166232
Entities
Organizations
- Naval Facilities Engineering Systems Command