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Project Title & Location
US 12 - Attalia Vicinity - Add Lanes (Phase 3)
Tri-Cities
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Project Description
Attalia Vicinity is the third phase of five phases that will reconstruct US 12 as a four lane divided highway from SR 124 to the Walla Walla River, and develop a plan for future four-laning from Wallula to Walla Walla.
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Contractor/Consultant
Apollo, Inc. of Kennewick, Washington.
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Recent Progress
The project stayed on schedule and this new four lane section of US 12 was opened to traffic in early September. Seeding and fertilizing, and integrated vegetation management were completed in October. Project completion was celebrated with Senator Murray on October 18, 2007 with a ribbon cutting ceremony.
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Design Construction Impacts
Generally, the project proceeded well and all impacts listed on the risk matrix were resolved.
Project work was completed in mid-October, after seeding and fertilizing and integrated vegetation management were completed. Project completion was well ahead of the initial December 2007 anticipated completion.
This project had several change orders and some items overran plan quantity. The railroads charged more money than was anticipated when the agreements were established. All changes combined are approximately 1% over the authorized amount set aside for the construction phase.
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Environmental Impacts / Compliance
Regional Construction staff, with support from Regional Environmental staff, worked well with Contractor personnel to ensure compliance.
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Impacts to Traffic
This four lane section of US 12 is now open to traffic.
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