Tag Archives: American Marine Corporation Services

Hilo WWTP Outfall Repairs

American Marine Corporation Diving project Hilo WWTP outfall pipeline

Marine Construction Project in Hawaii

This project consisted of repairing several existing leaks and an undermined section of the 48” Hilo WWTP outfall pipeline, at an approximate 50’ depth. The leak repair portion of this work consisted of several methodologies, including the use of oakum, epoxy grout, large stainless steel pipe clamps, and grout jackets. Repairing the undermined portion of the outfall pipe required excavation, placement of filter fabric, and the placement and pouring of several layers of concrete fabric form bags and mats. The final design of the fabric forms and the concrete mix design were completed by AMC. AMC utilized specialized charter vessels and concrete mixing and pumping equipment to set up an offshore batch plant, and pump concrete to a depth of 50’. AMC was able to overcome challenges with concrete material logistics, bad weather, and stringent BMP requirements to complete the project.

Hilo WWTP Outfall Repairs American Marine Corporation Hawaii project
Hilo WWTP Outfall Repairs American Marine Corporation Hawaii

Marine Construction

American Marine Corporation has long been engaged in marine construction projects throughout the Pacific, performing such varied tasks as underwater outfalls and pipelines, pile driving, marina construction, salvage projects, pier and wharf construction, dredging, and waterfront facility repair. Construction equipment, tugboats, crew boats and other work boats allows us to complete most of our projects “in-house,” with minimal reliance on outside support.

CAPABILITIES

Some of our capabilities are as follows:

Pile driving (pipe, concrete, sheet, H-section steel)
Wharf repairs (timber, concrete)
Dredging
Shore protection
Rock placement
Sub-sea pipeline and outfall installation and maintenance
Reinforced concrete construction
Levee/dike construction and earthwork

Our management staff of experienced engineers and construction managers has built a reputation for innovative solutions to complex construction problems in the marine environment. Some of our more recent clients include BP Exploration Alaska and Conoco-Phillips Alaska.