Client: City of Unalaska
Owner: City of Unalaska
Cost of Work: $9 million

The U.S. Coast Guard and the City of Unalaska combined to finance a 530-foot dock for utilization by the USCG and the City. The dock consists of a heavy-duty 325-foot OPEN CELL SHEET PILE® dock and a medium-duty 180-foot pile-supported concrete deck panel dock with 2.5± acres of upland fill. Approximately 75% of the piles had to be rock-anchored to meet earthquake restrictions. Both dock portions are faced with a heavy-duty fendering and mooring system. The dock face provides water, fuel, electrical, telecommunications and sewer-age systems. Upland facilities consist of a combination tele-phone-electrical-water building and a fuel distribution shack along with a high-mast lighting system. PND was responsible for upland and bathymetric surveys and geotechnical investigation; conceptual, preliminary and final design; public meetings to present preliminary and final design layouts; contract preparation, bid assistance and submittal review; fabrication inspection; construction administration; and close-out, including as-builts.