Demolition, site work, paving and new construction of a mixed-use development in Twin Bridges, Montana. Completed plans call for the demolition of a bridge / tunnel; for the construction of a bridge / tunnel; for site work for a bridge / tunnel; for paving for a bridge / tunnel; road / highway; road / highway; sidewalk / parking lot; sidewalk / parking lot; and water / sewer project.

Description: The project generally consists of the replacement of the Seyler Lane Bridge over Ruby River (MDT Bridge# - 03601) located 3.5 miles south of Twin Bridges in Madison County, Montana. The new bridge will replace the existing two-span, 62' span x 22' usable width bridge. The new 100' span x 24' usable width single-span bridge will be constructed of precast prestressed concrete bulb tee beams on a driven pile foundation. Improvements consist of, but are not limited to: removal of existing bridge, riprap, supply and installation of precast concrete bulb tee beams, supply and installation of steel pipe piles, cast-in-place concrete pile caps and wingwalls, guardrail, bridge rail, structural backfill, roadway embankment, asphalt pavement surfacing, aggregate base, signing, approach culverts, fencing, and other miscellaneous items. Doc note: Required fee of $50 per set, which is non-refundable. Download delivery fee is $25.00, file size is 21 MB . Question Deadline 11/19/2025 at 10:00 AM MT All questions about the meaning or intent of the Contract Documents are to be submitted in writing to and must be received by Great West Engineering. Written comments may be submitted to Jeremiah Theys of Great West Engineering by mail at: 250 Helen P Clarke Street, Helena, MT 59601 or email at: jtheys@greatwesteng.com.