Site work for a bridge / tunnel in Seward, Alaska. Working plans call for site work for a bridge / tunnel.

Tunnel refurbishment services for the Lowell Creek Tunnel, including repair and restoration of damaged structural components within an approximately 2,100-foot-long concrete-lined tunnel. Work involves removing loose or deteriorated concrete at the intake transition, tunnel entrance, sidewalls, and invert, replacing missing or damaged railroad rails, and restoring reinforcement systems. The contractor shall perform concrete repairs using high-strength silica fume concrete, including filling gouges in tunnel walls and floors, reestablishing reinforcement mats, repairing exposed rebar areas, and relining the tunnel invert with specified overlays to restore original conditions. Work also includes securing and replacing embedded rails, addressing penetrations into bedrock, and extending centerline steel rails through the tunnel where required. The project will require diversion of Lowell Creek during construction activities and is expected to be performed during periods of low water flow. The contractor shall provide all labor, equipment, materials, and supervision necessary to complete the work in accordance with applicable standards, ensuring structural integrity and continued functionality of the water diversion system. The total estimated magnitude of construction for base and option items is between $10,000,000 and $25,000,000. The Method of Contractor Selection has not been determined at this Time. *The value for this project is based on a financial range. The value is listed as the highest possible cost from the range provided by a stakeholder or official project document.