The bridge replacement project is at the 30% design phase. County commissioners also approved:
• A compressed westside interchange where the bridge connects with Highway 43
• An open bottom concrete arch culvert where a new access road crosses Stephens Creek on the westside
• Stormwater treatment facilities for both sides of the river
Refinements in the design and the reduced size and complexity of the westside interchange have reduced the estimated project cost by $41 million, from $331 to $290 million (in 2014 dollars).
“We often ask our staff to do more with less,” said County Chair Jeff Cogen. “Last fall we asked the project team to design a better project for less money. In this case, we’ve done it.”
Commissioner Deborah Kafoury, whose district includes the bridge, noted that the revised design has the support of local, state and federal partners. “Everyone is on the same page,” she said. “I’m especially pleased we were able to reduce the size and cost of the westside interchange.”
The county board recommended a steel deck arch for the main river span but kept a concrete arch option in the running. A decision on the material type will be made later this year, after a construction firm is hired and final cost comparisons are developed. Bridge construction is expected to begin in July 2012.
