Technical Description:
MULTI-PLATE
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The Metlakatla Indian Community (MIC), located on the west coast of Annette Island, Alaska, is accessible only by air and water. A 14-mile roadway project on Walden Point Road was planned, designed and constructed under the National Environmental Policy Act (NEPA) to link the community of Metlakatla to the northern end of Annette Island. The construction includes the addition of two new ferry terminals that will provide daily transportation and shorten the ferry link between Metlakatla and Ketchikan.
“The DOT is planning and constructing the ferry terminal on Annette Island and is still in the planning phase for the new terminal in Ketchikan” said Michael Traffalis, Project Manager, Western Federal Lands Highway Division, Federal Highway Administration (FHWA). “This new roadway and ferry system will greatly lessen the community’s isolation as well as provide public access to a much greater amount of Annette Island”
FHWA and the United States Army needed a product to act as a stream-simulated pipe for a fish passage before the roadway was constructed overtop. They chose a 25 ft diameter, 204 ft long MULTI-PLATE structure for the project. MULTI-PLATE was chosen because of its strength, durability and cost effectiveness.
“MULTI-PLATE was also chosen for the structure because it was large enough to allow for the FHWA-designed stream” said Traffalis. “We placed natural stream bed material back into the pipe, allowing for a successful fish passage”
The Bureau of Indian Affairs (BIA) was the Federal Lead Agency in charge of permits and funding for NEPA and FHWA was in charge of designing the roadway. The MIC sponsored the project, providing materials and security and overall contract administration.
Technical Description:
MULTI-PLATE
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