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Project Title & Location
SR 270/Pullman to Idaho State Line. East of Pullman in Whitman County.
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Project Description
As Revised September 2004 - Constructs one additional lane in each direction with a two way turn lane between Pullman and the Idaho State line. The project will increase capacity and reduce travel times. Safety will be enhanced with the addition of a two way turn lane to provide separation between opposing directions of traffic. There are currently two lanes. There will be four through lanes when this project is completed.
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Recent Progress
This project constructs a four-lane highway, with a continuous center turn lane, along the existing SR 270 alignment. The project was executed May 8, 2006 and work started on July 10, 2006. Current construction activities include placing ballast and CSBC, installing culverts, paving both 1" base and 1/2" wearing HMA, electrical work, slope finishing, finalizing work on wetland mitigation sites, and seeding.
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Environmental Impacts / Compliance
Environmental Sensitive areas have been delineated with Orange High Visibility fencing. Silt fence and inlet protection have been placed to help mitigate surface erosion. Straw matting has been placed to stop surface erosion. Preparing slopes for seeding.
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Impacts to Traffic
The blasting operation has impacted traffic. A detour using Airport Road was set up to help alleviate the impacts. Utilizing the Traffic Management Center (TMC), News Alerts, Highway Advisory Radio's (HAR's), and Variable Message Signs (VMS) to provide information to the public.
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