📋 Tender Overview
Project Limits: Mileposts 1.50 to 1.95
Federal Classification: Urban Minor Arterial (16)
Project Description: The existing bridge is cantilevered over
the BNSF railroad tracks. The project will include the removal
of the existing bridge structure, reconstruction of the bridge
approaches, drainage improvements, and construction of a new
bridge and installation of new guardrail. During construction,
the roadway will be closed to thru traffic which will be detoured
around the project.
Basis for Project: The existing bridge was built in 1919 and
has deteriorated with spalling, cracking of concrete and
corrosion of reinforcing steel. The bridge is classified as
structurally deficient and posted with load restrictions. If the
bridge is not replaced it will eventually need to be closed
redirecting traffic along Cowlitz Gardens Drive, which is a lower
classification roadway and includes an at grade railroad crossing.
Environmental/Safety Considerations: Although this bridge does not cross a stream or river there is a
small wetland at the toe of the embankment whose buffer is being impacted. These impacts are being mitigated
in conformance with the approved wetland plan.
The bridge was deemed a historic structure and the County is complying with all historical requirements to
mitigate for removal of this historic structure.
The existing structure is structurally deficient and is load limited. The new structure will allow legal loads and
additional guardrail will be added to improve driver safety. The shoulders will be widened to allow for use by
pedestrians and bicyclists removing them from the travel lanes.
Funding Sources: This project is being funded with federal bridge money that is available to local agencies to
repair or replace bridges that are at the end of life. The County is providing a 20% match of local funds per the
program’s requirements
