*SR 89A IMPROVEMENTS* Starting this spring, ADOT will begin construction to improve safety along State Route 89A in Oak Creek Canyon. These improvements include rockfall mitigation, erosion control and bridge rehabilitation. MORE:
Transportation Board awards major improvement project along SR 89A in Oak Creek CanyonFLAGSTAFF – The Arizona State Transportation Board awarded a construction contract on Friday, Feb. 18, for safety-related and other improvements along SR 89A in Oak Creek Canyon. The improvements include rockfall mitigation, erosion control and bridge rehabilitation.
With the exception of limited daytime and overnight closures, SR 89A will remain open to traffic. Traffic restrictions using a combination of temporary traffic signals and flagging operations will be in place while the improvements are under construction. The roadway will be narrowed to one lane only through the work zones with alternating north- and southbound travel.
Sediment and erosion control work will take place in the switchbacks near the Pumphouse Wash Bridge. The work will improve drainage systems along the highway reducing erosion and includes installing concrete barriers, pipes, a retaining wall and catch basin, and other related work. These items were originally listed as three separate projects to be completed at different times under two contractors. However, in order to better address the complexity of the work and better coordinate traffic impacts, the projects were combined into one under one contractor.
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