Southbound State Route 143 to close between  Loop 202 (Red Mountain Freeway) and I-10 (March 7-9)

PHOENIX – The Arizona Department of Transportation advises motorists to plan ahead and expect to use detours as southbound SR 143 will be closed between Loop 202 (Red Mountain Freeway) and I-10 from 10 p.m. Friday, March 7, to 10 a.m. Sunday, March 9, for a traffic shift. At the same time, the ramps from Loop 202 (Red Mountain Freeway) to southbound SR 143 will be closed.

In addition, the following ramps will be closed from 8 p.m. Friday, March 7, to 10 a.m. Sunday, March 9:

• The southbound SR 143 on-ramps at Washington Street, Sky Harbor Boulevard and University Drive.
• The westbound Loop 202 (Red Mountain Freeway) off-ramp at Sky Harbor Boulevard.

SR 143 detour for westbound Loop 202 (Red Mountain Freeway): Use westbound Loop 202 (Red Mountain Freeway) to eastbound I-10 to access destinations south of the closure.

SR 143 detour for eastbound Loop 202 (Red Mountain Freeway): Use eastbound Loop 202 (Red Mountain Freeway) to southbound Loop 101 (Price Freeway) to westbound Loop 202 (Santan Freeway) to access destinations south of the closure. 

Airport access: Use southbound 44th from Loop 202 (Red Mountain Freeway).

Project milestone: When southbound SR 143 reopens, there will be new high-occupancy-vehicle (HOV) lanes connecting westbound I-10 to northbound SR 143 and southbound SR 143 to eastbound I-10. In addition, dual HOV lanes will open in both directions on the I-10 mainline between US 60 and I-17. 

NOTE: Several other ramp and lane closures are scheduled for this weekend. For information about additional weekend restrictions and closures visit i10broadwaycurve.com/alerts.

Please note:  The Arizona Department of The Arizona Department of Transportation advises drivers to use designated detours when there are closures on state highways. Schedules can quickly change because of weather and other unforeseen situations. For the most up-to-date information, we encourage you to download the Interstate 10 Broadway Curve Improvement Project’s free mobile app, TheCurve or visit the Alerts section of the project website before you travel.

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The I-10 Broadway Curve Improvement Project is identified in the Maricopa Association of Governments’ Regional Transportation Plan, funded by a half-cent sales tax approved by Maricopa County voters in 2004 through Proposition 400. MAG identified the need for this project to reduce travel times on I-10 during peak hours; improve airport access; support ridesharing and transit; and prepare the region for future growth projections. Learn more about the major improvements here.