A. Miner Contracting Inc. received a federal contract earlier this year to replace an 80-year-old, one-lane bridge over Lynx Creek about 7 miles south of state Highway 69.
Coreslab Structures built each of the 42-ton precast concrete girders in Phoenix. They were individually hauled to the construction site, where the crane lifted them into position, with ground workers guiding them into place.
After the last girder dropped into position, several of the construction workers congratulated each other, but there's still work to do to build the approaches and paving. Construction began in June and is expected to wrap up this month.
The previous bridge, built in 1935, was 32 feet long and 18 feet wide, built in two 14-inch-thich concrete sections, and the creek had eroded areas around the abutments and wingwalls. It had been constructed in the New Deal era by the Works Progress Administration, as evidenced by the medallion embedded in it, which the county requested be removed for preservation.
The new bridge is more than double the length of its predecessor, spanning more than 80 feet, and will accommodate two lanes of traffic. Approximately 750 cars traverse the bridge daily.
According to the Structural Selection Report prepared by Jacobs Engineering in May 2014, the longer span and configuration will allow the creek to more easily pass under the bridge without the erosion problems presented previously.
During construction, Walker Road remained open, but a temporary traffic light controls a single-lane bypass around the site.
The $1.96 million project is part of the Arizona Federal Lands Access program. Yavapai County is paying $112,000 of the total.
Sedona AZ (June 2, 2014) – On behalf of the Yavapai County Supervisors, Supervisor Jack R. Smith released information today that the existing Bridge over Lynx Creek on Walker Road, Prescott, Arizona, constructed in 1935 and currently safe for highway rated loads, upon inspection, has decades of gradual deterioration evident on the structure. To address these concerns and insure continued full access to Walker and surrounding Arizona areas over the bridge, the County of Yavapai is participating in a cooperative project with the Arizona Department of Transportation to replace the bridge.
The replacement bridge will be designed to current highway standards, accommodate two lanes of traffic and completely span the creek with an 83 foot long structure. It is estimated that it will cost $1.96 million to replace the existing bridge with a bridge meeting current standards. Of this amount, the County will contribute $112,000.
One-way traffic will be maintained during construction of the new bridge by building the bridge one-half at a time: Phase 1 will consist of half of the new bridge constructed and traffic will use the existing bridge, then, in Phase 2, traffic will be shifted onto the completed half of the new bridge while the old bridge is removed and the remainder of the new bridge is completed.