Work began this week on the $4.4 million Colorado Department of Transportation project to replace the Mineral Creek Bridge on U.S. 550 just south of Silverton.
The Mineral Creek Bridge was built in 1955 as a three-span, concrete slab and girder design. It has a bridge rating of 33.8 (out of 100), in the “Structurally Deficient” category.
It will be replaced with a single-span steel girder structure with wider shoulders. The new bridge will be constructed on the west side (upstream) of the existing structure, and the highway will be realigned to the north side to join it.
The bridge will be constructed in two seasons. Work this season, which will end by mid-November, will include construction of the bridge abutments (with vertical pilings and wing walls) and scour control adjacent to the river. There will be minimal traffic impacts this fall.
Work will start up again in April or May of 2010, and the new roadway and bridge structure will be completed in September 2010. Traffic will be impacted more heavily next season when crews begin work on the roadway re-alignment..
The project was awarded to Colorado Constructors of Denver for $2.64 million. The total cost of the bridge replacement project is $4.4 million.
To get information about this project, the public may call the project line at (970) 779-9068.