Loop 101 improvement project in north Valley starts Friday, Feb. 8
Eastbound lanes closed from I-17 to Seventh Street this weekend

An Arizona Department of Transportation project getting underway this weekend will widen and make other improvements along the Loop 101 Pima Freeway between Interstate 17 in north Phoenix and Pima Road in north Scottsdale.

This $185 million project, which will add a fourth general purpose lane in each direction along the 13-mile stretch, is scheduled for completion by early 2021.

Construction will start Friday night, Feb. 8, with the first of a series of weekend closures allowing crews to place temporary barriers and adjust lane stripes while setting up work zones.

The first weekend closure is scheduled as follows:

Eastbound Loop 101 closed between I-17 and Seventh Street in north Phoenix from 10 p.m. Friday to 5 a.m. Monday (Feb. 11) for placement of temporary barriers and lane-stripe adjustments. Both I-17 ramps to eastbound Loop 101 closed. Eastbound Loop 101 on-ramp at 27th Avenue also closed. DETOUR: Eastbound Loop 101 traffic will exit at 27th Avenue and detour along Beardsley frontage road before re-entering Loop 101 at Seventh Street. To limit delays, drivers should consider other alternate routes, including eastbound Bell Road, Union Hills Drive or Deer Valley Road.

For the safety of work crews and freeway travelers, the work zone speed limit will be reduced to 55 mph. Drivers should slow down, use caution and watch for highway crews and equipment.

In addition to adding lanes, the Loop 101 Improvement Project includes constructing right shoulder merge lanes in both directions between the Seventh Street and Cave Creek Road interchanges.

Crews will widen several bridges to accommodate the new lanes. Noise walls and retaining walls also will be added or relocated where warranted. Later stages of the project will feature work to resurface all lanes with smooth rubberized asphalt.

Drivers also should plan for work zones at Loop 101 interchanges as work progresses, including closures or lane restrictions along on- and off-ramps. More information about the project is available at azdot.gov/Loop101Improvements.


First Pecos Road traffic moving onto South Mountain Freeway lanes
Shift will allow construction to progress on Ahwatukee interchanges

For the first time, motorists will use a stretch of the future Loop 202 South Mountain Freeway, in this case through a temporary configuration that will allow work to progress on the 17th Avenue and Desert Foothills Parkway interchanges in Ahwatukee.

In a shift scheduled to occur by 5 a.m. Monday, Feb. 11, both directions of Pecos Road traffic between 17th Avenue and an area west of Desert Foothills Parkway will begin using a temporary alignment on the freeway’s future eastbound lanes. This 2-mile stretch will be reduced to one lane in each direction, connecting with 17th Avenue using what will become the westbound Loop 202 off-ramp and with Desert Foothills Parkway using the westbound Loop 202 on-ramp.

The Arizona Department of Transportation has scheduled a closure of Pecos Road this weekend between 17th Avenue and 24th Street to set up the traffic shift. The closure will start at 10 p.m. Friday, Feb. 8.

By moving traffic to this temporary configuration, crews can finalize construction of the 17th Avenue interchange without requiring extended weekend and nightly closures of the Pecos Road intersection.

In addition, the traffic shift will allow crews to begin building the Desert Foothills Parkway interchange, the only South Mountain Freeway interchange where construction has yet to start. To accommodate this work, a temporary Desert Foothills Parkway intersection will be located west of the current intersection.

This shift of Pecos Road traffic onto the future South Mountain Freeway is the first of several that will allow Connect 202 Partners, the freeway developer, to advance construction.

Once all traffic is shifted onto the freeway, Pecos Road will be permanently closed and repurposed into a 6-mile shared-use path south of the freeway between 17th Avenue and 40th Street.

Final construction planned for the 17th Avenue interchange includes completing ramps, barrier and sound wall installation, final paving and striping, and crossroad improvements.

In order to create additional room for construction, 17th Avenue traffic south of Cottonwood Lane will be reduced to one lane in each direction and shifted to the east side of the roadway, using the current northbound lanes.

This phase of work is expected to be complete this spring. Local traffic will continue using this temporary configuration until a second shift is needed to complete the rest of the 17th Avenue interchange. Desert Foothills Parkway interchange construction is expected to be completed in summer.

The speed limit through the work zone will be reduced in some areas.

The 22-mile South Mountain Freeway, which is slated to open as early as late 2019, will provide a long-planned direct link between the East Valley and West Valley and a much-needed alternative to I-10 through downtown Phoenix. Approved by Maricopa County voters in 1985 and again in 2004 as part of a comprehensive regional transportation plan, the South Mountain Freeway will complete the Loop 202 and Loop 101 freeway system in the Valley.