Work planned for I-40 in Arizona

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Westbound lanes of Interstate 40, as well as the westbound on- and offramps at Cosnino Road in Flagstaff, Ariz., will be closed beginning on Tuesday, June 30, the Arizona Department of Transportation announced. The closure is part of a project to reconstruct portions of westbound I-40 from mile marker 205 to 209.

All interstate traffic will be routed onto the eastbound lanes, with one lane for each direction of travel. The closures are expected to be in place through October. Prior to June 30, drivers should plan for intermittent lane closures on both directions of I-40.

The eastbound I-40 on- and offramps and Cosnino Road above I-40 will remain open throughout the project’s duration. During the westbound ramp closures, ADOT recommends using the nearest interchanges to the east (Winona) and west (Walnut Canyon) as detour routes.

Traffic restrictions will be in effect 24 hours per day throughout the project’s duration. Speeds in the project area are reduced to 35 mph, and the I-40 travel lanes are restricted to widths of 16 feet or less. ADOT expects to complete this phase of the project by November, after which all lanes and ramps will be opened.

Additional work will be necessary in summer 2010, which will require short-term closures of the westbound on- and offramps and I-40 travel lanes.