ANC

Location: ANC

CRW planned and oversaw a geotechnical investigation to support the design of a buried fuel pipeline to be installed by horizontal directional drilling (HDD). This design required continuous characterization of the subsurface to a depth of over 80 feet below the active runways at ANC. CRW coordinated with ANC Operations and three subcontractors to clear utilities, drill two boreholes, and perform geotechnical and environmental sampling during brief runway closures, minimizing the impact on airport activities. Using newly-acquired data supplemented with historical soils data from other areas of the proposed 3500-foot project corridor, CRW provided engineering recommendations for entry and exit excavations and subsurface characteristics pertinent to HDD operations and design, including lithology, consistency, permeability, and swell potential.

Location: ANC

Site and utility design were provided for the construction of a new, 60,000-square-foot maintenance hangar for Alaska Airlines. The site work included demolition of an existing warehouse and utilities, as well as the installation of new water, sewer, and storm drain utilities. The work also involved vehicle parking on the land side and a new apron and hardstands on the airfield side.

Location: ANC

Reconstructed to FAA standards, the Taxiway F improvements included a new structural section; shoulder paving; and the replacement of lighting, marking and signage, culverts, and the taxiway lighting circuit. The project also considered the future extension of TW Z in the proposed improvements to minimize new work that would be demolished with the extension.