Drivers on westbound I-10 heading to northbound SR 143 can use the westbound CD road to access northbound SR 143. Drivers on eastbound I-10 will exit at northbound SR 143 to access Phoenix Sky Harbor International Airport. Drivers on westbound I-10 heading to northbound SR 143 may use either the westbound CD road or the HOV ramp (if eligible). Solitary drivers, who will be unable to use the HOV lane during HOV hours, should use the westbound CD road to access northbound SR 143.

Westbound I-10 and westbound US 60 drivers should use the westbound CD road to exit at Broadway Road. Eastbound I-10 drivers may exit from the eastbound I-10 mainline at 48th Street.

Westbound I-10 and westbound US 60 drivers should use the westbound CD road to exit at Broadway Road. Eastbound I-10 drivers should also exit the eastbound I-10 mainline at Broadway Road.

Southbound SR 143 traffic entering from University Drive should continue south on 48th Street to Broadway Road to enter the eastbound CD road and access eastbound US 60. There will be no direct access from University Drive to eastbound I-10 once the CD roads are completed.

Westbound I-10 and westbound US 60 drivers should use the westbound CD road to exit at 40th Street. Eastbound I-10 drivers may exit from the eastbound I-10 mainline at 40th Street.

Westbound US 60 drivers should stay to the right, following signage to 40th Street, to exit onto the westbound CD road. Travel on the westbound CD road to 40th Street.

Westbound I-10 and westbound US 60 drivers should use the westbound CD road to exit at Broadway Road.

Drivers on southbound SR 143 should take the ramp to the eastbound CD road, signed for I-10 East. Travel on the eastbound CD road to Baseline Road.

I-10 West mainline to Northbound SR 143: Travel westbound on the westbound I-10 mainline and take Exit 154B, signed for SR 143, to join the westbound CD road. Travel on the westbound CD road to northbound SR 143. If you are traveling in the HOV lane, travel westbound on the I-10 mainline and take the westbound I-10 HOV ramp for northbound SR 143.

I-10 East mainline to Northbound SR 143: Travel eastbound on the I-10 mainline to northbound SR 143.

Southbound SR 143 to I-10 West mainline (west of 40th Street): Travel southbound on southbound SR 143. Take the exit ramp for the westbound CD road, signed for I-10 West. Travel on the westbound CD road until it merges with the westbound I-10 mainline west of 40th Street

Westbound US 60 to I-10 East mainline (south of Baseline Road): Travel westbound on US 60, stay to the left to take the ramp for the eastbound I-10 mainline.

Westbound US 60 to I-10 West mainline (west of 40th Street): Travel westbound on westbound US 60, stay to the middle to join the westbound I-10 mainline.

I-10 West mainline (south of Baseline) to Eastbound US 60: From westbound I-10, take Exit 154A, signed for US 60 East, to the westbound CD road. Travel on the westbound CD road to eastbound US 60.

I-10 East mainline (west of 40th Street) to Eastbound US 60: Travel on the eastbound I-10 mainline to eastbound US 60.

Westbound US 60 to Northbound SR 143: Travel westbound on westbound US 60, stay to the right to exit onto the westbound CD road, signed for SR 143 North. Travel on the westbound CD road to northbound SR 143. If you are traveling in the HOV lane, travel westbound on westbound US 60, stay to left for the westbound US 60 HOV ramp to the westbound I-10 mainline. Take the westbound I-10 HOV ramp for northbound SR 143.

Signage on the roadway guides drivers to the correct lanes based on their destinations. ADOT is also working with companies like Apple and Google to make them aware of the improvements made to the roadway.

Signage to guide drivers to the correct lanes based on their destinations will be placed on the westbound I-10 mainline, westbound US 60 and southbound SR 143 prior to the CD road entrances. These signs will not use the term “Collector-Distributor” or “CD” roads on them. Instead, drivers will be directed to the correct lanes, whether on the mainline or on the CD roads, based on their entrance and destination.

No, drivers will not encounter traffic signals once they are on the CD roads.

The speed limit is 55 mph on the CD roads.

The westbound CD road will generally be three lanes. The eastbound CD road will generally have two lanes.

We suggest looking at the map above for guidance

For the eastbound CD road:

To enter: Drivers can enter the eastbound CD road at the following locations:

• Southbound SR 143 at the I-10 interchange.
• Broadway Road

To exit: The eastbound CD road has exits to eastbound US 60 and Baseline Road. Drivers on the eastbound CD road that do not wish to exit to US 60 or Baseline Road, will merge with eastbound I-10 mainline traffic just south of US 60.  

For the westbound CD road:

To enter: Drivers can enter the westbound CD road at the following locations:

• Westbound I-10 mainline just south of Baseline Road.
• Westbound I-10 mainline just south of US 60.
• Baseline Road.
• Westbound US 60 at the I-10 interchange.
• Southbound SR 143 at the I-10 interchange.

To exit: The westbound CD road has exits to eastbound US 60, Broadway Road, northbound SR 143, and at 40th Street. Drivers on the westbound CD road that do not wish to exit at these locations will merge with westbound I-10 mainline traffic west of 40th Street.

To access Phoenix Sky Harbor International Airport using SR 143, drivers on westbound I-10 must use the westbound CD road to access northbound SR 143. Drivers on eastbound I-10 may exit at northbound SR 143 to access Phoenix Sky Harbor International Airport. Drivers on westbound I-10 heading to northbound SR 143 may use either the westbound CD road or the HOV ramp (if eligible) connecting the westbound I-10 mainline to northbound SR 143. Solitary drivers, who are unable to use the HOV lane during HOV hours, should use the westbound CD road to access northbound SR 143 during HOV hours.

Drivers who do not wish to exit the I-10 in the Broadway Curve area, should remain on the mainline traffic lanes for eastbound and westbound I-10.

While similar to frontage roads, the CD roads separate mainline traffic from local traffic that’s entering and exiting the freeway. The primary difference is that CD roads do not have traffic signals or access to driveways or cross-streets. On I-10, traffic entering, exiting, or traveling a short distance between exits in the Broadway Curve area will access the CD roads first before entering the mainline freeway. CD roads are designed to improve traffic flow and reduce the need for vehicles to weave between lanes.

Similar to missing an exit now, drivers should continue to the next exit to turn around.  Since there are no exits from the westbound I-10 mainline to Broadway Road, SR 143 or 40th Street, drivers who miss the exit from westbound CD road or westbound US 60 to the westbound CD road should continue on the westbound I-10 mainline and exit at 32nd Street. Then, drivers should reenter I-10 heading eastbound to access their destination.

Drivers who unintentionally exit to the CD road should follow the CD road through the Broadway Curve area until it merges back to mainline I-10.

Yes. Both northbound SR 143 and the westbound CD road will have exits at University Drive. Watch for signage on the roadway to direct drivers to the correct lane.