Demolition, site work, paving and new construction of a bridge / tunnel in Seattle, Washington. Completed plans call for the demolition of a bridge / tunnel; for the construction of a bridge / tunnel; for site work for a bridge / tunnel; and for paving for a bridge / tunnel.

Synopsis: This project provides for the improvement of Boise X Connection #3055A Bridge on SE Mud Mountain Road in King County by clearing and grubbing; installing erosion control measures; cofferdams, stream diversion pipe and dewatering system; constructing bridge and walls, removal of structures and obstructions; roadway excavation including haul; removal of existing bridge and wingwall; installing shoring; construction of geosynthetic reinforced soil wall; placement of streambed materials; precast bridge construction with UHPC shear keys; surfacing with crushed surfacing base course; paving with hot mix asphalt; installing beam guardrail; stream channel and site restoration; project temporary traffic control, and other work. Work site: Near SR410 and SE Mud Mountain Rd in Enumclaw, Washington 98022 Engineer's Estimate: $4,061,000 Subcontracting Opportunities: Surveying, pavement markings, crane/lifting, concrete, HMA, erosion control, landscaping, guardrail, and traffic control. DBE PARTICIPATION Disadvantaged Business Enterprise (DBE) participation for this federally funded work shall be at least 18% of the contract total. Mandatory Disadvantaged Business Enterprise (DBE) Goal: 18% Training Goal: 400 hours Bid Guaranty: Not less than five percent (5%) of the Total Bid Price.