Sounder Transit / BNSF Commuter Railroad
Seattle, Washington

DMJM+HARRIS, in partnership with another firm, is providing planning, design, and construction management services for the initial start-up of Sounder Commuter Rail service between Tacoma and Seattle. Uninterrupted freight operations are vital to both the BNSF and the regional economy. The Sounder Commuter Rail improvements will permit the addition of safe and reliable commuter rail services to the existing line without compromising freight operations on the corridor. Our services include project management, survey definition, railroad engineering design, grade-crossing design, structural and bridge design, utility and third party-coordination, and scheduling and cost estimating. The work is being coordinated closely with Sound Transit and the firm responsible for station design and construction. DMJM+HARRIS, along with our JV partner firm, will be providing full construction management and contract administration services.

DMJM+HARRIS is also providing engineering and design support for the Everett-to-Seattle Commuter Rail Project Environmental Impact Statement. The work to date has included planning, evaluation of required corridor improvements necessary to operate commuter rail service, definition of survey requirements, railroad engineering, structural engineering, coastal engineering, cost estimating, impact analysis of marine environments, conceptual-level station planning, and preparation of technical memoranda and data. The primary ongoing work elements involve conceptual and preliminary engineering evaluations for adding a second main track at Mukilteo and Edmonds. We are preparing a technical report that will document the engineering analyses, as well as the rationale underlying proposed alternatives. This document is being prepared with input from the regulatory agencies, including FTA, ACOE, and DOE. The final technical report will support the project permitting effort.