Find Your Lane

Information on this page reflects the roadway in its final configuration

Visit Traffic Alerts for the most current traffic information

 

What are Collector-Distributor (CD) roads?

Collector-Distributor roads collect traffic from the Interstate 10 mainline, State Route 143 and US 60 and distribute it to crossroads or other highways. They separate through-traffic from local traffic entering and exiting I-10 through the Broadway Curve area. This will reduce the need for vehicles to weave between lanes and help keep traffic flowing on I-10.

The westbound CD road is located along westbound I-10 from Baseline Road to 40th Street and is generally three lanes. The eastbound CD road runs along eastbound I-10 from 48th Street to Baseline Road and is generally two lanes.

Overhead signage will help drivers find the correct entrances and exits to get to their destination. Please note that these signs will not use the terms “Collector-Distributor” or “CD” roads on them. Instead, drivers will be directed to the correct lane based on their destination.

There are no traffic signals on the CD roads and the speed limit is 55 miles per hour. The roads are not accessible to pedestrians and bicyclists.

The westbound CD road is scheduled to open to drivers in Spring 2024. The eastbound CD road is scheduled to open in Summer 2024.

 

How do the CD roads work?

Depending on your entrance location and destination, CD roads may change your travel route on I-10 between Baseline Road and 40th Street.

Westbound CD Road

The westbound CD road separates drivers entering and exiting I-10 between Baseline Road and 40th Street from the westbound I-10 mainline traffic.

Drivers heading westbound on I-10 and exiting at eastbound US 60, Broadway Road, northbound SR 143 or 40th Street will need to use the westbound CD road.

Drivers headed westbound on I-10 and exiting to northbound SR 143, a common route to Phoenix Sky Harbor International Airport, an HOV ramp will connect the westbound I-10 mainline to northbound SR 143. Solitary drivers, who will be unable to use the HOV lane during HOV hours, can use the westbound CD road to access northbound SR 143.

Drivers enter the westbound CD road at the following locations

  1. The westbound I-10 mainline just south of Baseline Road.
  2. The westbound CD road entrance at Baseline Road.
  3. The westbound I-10 mainline just south of US 60.
  4. The westbound US 60 ramp to the westbound CD road.
  5. The southbound SR 143 ramp to the westbound CD road.

Drivers on Broadway Road enter westbound I-10 directly onto the westbound I-10 mainline and are not able to enter the westbound CD road.  These drivers will also need to use local streets to get to destinations on 40th Street.

Drivers on westbound I-10, who are not exiting at eastbound US 60, Broadway Road, northbound SR 143 or 40th Street, should stay on the westbound I-10 mainline. The westbound CD road will eventually merge back with I-10 mainline traffic west of 40th Street.

English Map 

Spanish Map

Eastbound CD Road

The eastbound CD road separates drivers entering the freeway between 48th Street and Baseline Road from the eastbound I-10 mainline traffic.

Drivers entering eastbound I-10 at Broadway Road will travel on the eastbound CD road until the US 60 interchange. At this point, drivers on the eastbound CD road will be given the option to exit to eastbound US 60, Baseline Road or join the eastbound I-10 mainline.

Drivers entering eastbound I-10 from southbound SR 143 will have the option to join the eastbound CD road or use a new HOV ramp that will connect southbound SR 143 to the eastbound I-10 HOV lane.

Drivers on the eastbound I-10 mainline will remain on the eastbound I-10 mainline and the existing access to eastbound US 60 and Baseline Road is maintained.

 

How to access common destinations in the Broadway Curve area (upon completion of the project)

Visit Traffic Alerts for the most current traffic information

  • Phoenix Sky Harbor International Airport via SR 143

     

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    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.

  • Tempe Diablo Stadium via Broadway Road

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    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.

  • Rio Salado College via Broadway Road

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    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.

  • US 60 from University Drive

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    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.

  • 40th Street via I-10 West (south of Baseline)

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    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.

  • 40th Street via Westbound US 60

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    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.

  • Broadway Road via I-10 West (south of Baseline)

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

  • Baseline Road via SR 143

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    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.

Freeway to Freeway Connections (upon completion of the project)

Visit Traffic Alerts for the most current traffic information

  • State Route 143

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    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

    Southbound SR 143 to 1-10 East mainline (south of Baseline Road): Travel southbound on southbound SR 143, take the ramp to the eastbound CD road, signed for I-10 East. Travel on the eastbound CD road until it merges with the eastbound I-10 mainline south of the US 60 interchange.
    Southbound SR 143 to Eastbound US 60: Travel southbound on southbound SR 143, take the ramp to the eastbound CD road, signed for I-10 East. Travel on the eastbound CD road to eastbound US 60.

     

  • US 60

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    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.

Frequently Asked Questions

  • How will I know if I should remain on I-10 or use the CD road?

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    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.

  • Where will signage for the CD roads be placed? What will it look like?

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    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.

  • Will the CD roads have traffic signals?

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

  • What is the speed limit on the CD roads?

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    The speed limit is 55 mph on the CD roads.

  • How many lanes will the CD road have?

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

  • Where and how do you enter and exit the CD roads?

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    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.

     

  • How do you access Phoenix Sky Harbor International Airport?

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    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.

  • What if I’m not exiting I-10 between Baseline Road and 40th Street?

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    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.

  • Are the CD roads similar to the frontage roads alongside other freeways?

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    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.

  • What if I miss the entrance to the westbound CD road from westbound I-10 or westbound US 60, how do I get off at my exit in the Broadway Curve area?

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    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.

  • What if I unintentionally enter the CD road? How do I get back onto mainline I-10?

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    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.

  • Can I still access University Drive from northbound SR 143 or westbound I-10?

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    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.

Talk with Team Members and learn more about the CD roads at community events

Paul’s ACE Hardware & Lumber on Saturday, April 13, 10 a.m. – 12 p.m. – 1153 W. Broadway Road, Tempe, AZ 85282

ACE Hardware and Rental on Saturday, April 13, 1-3 p.m. – 4825 E. Warner Road #16, Phoenix, AZ 85044

Paul’s ACE Hardware & Lumber on Saturday, April 20, 10 a.m. – 12 p.m. – 1153 W. Broadway Road, Tempe, AZ 85282

Ironwood Public Library on Saturday, April 20, 2-4:30 p.m. – 4333 East Chandler Boulevard, Phoenix, AZ 85048

Ironwood Public Library on Saturday, April 27, 9-10:30 a.m. – 4333 East Chandler Boulevard, Phoenix, AZ 85048

Fry’s Food & Drug Store on Saturday April 27, 2-4 p.m. – 2700 W. Baseline Road, Tempe, AZ 85283

Escalante Multigenerational Center on Sunday, April 28, 2:30-4:30 p.m. – 2150 E. Orange Street, Tempe, AZ 85281

Westside Multi-Generational Center on Monday, April 29, 4:30 – 6:30 p.m. – 715 West 5th Street, Tempe, AZ 85281

Past Events

Chandler Innovation Fair on Saturday, Feb. 24, 10 a.m. – 2 p.m. 178 E. Commonwealth Ave., Chandler, AZ 85225

MLB Spring Training 2024 – Rangers at Angels on Monday, March 11, 10:30 a.m. – 1 p.m. Tempe Diablo Stadium – 2200 W. Alameda Drive, Tempe, AZ 85282

MLB Spring Training 2024 – Giants at Angels on Wednesday, March 20, 10:30 a.m. – 1 p.m. Tempe Diablo Stadium – 2200 W. Alameda Drive, Tempe, AZ 85282

Paul’s ACE Hardware & Lumber on Saturday, April 6, 10 a.m. – 12 p.m. – 1153 W. Broadway Road, Tempe, AZ 85282

Tempe Public Library on Saturday, April 6, 12:30 p.m. – 2:30 p.m. 3500 S. Rural Road, Tempe, AZ 85282

Ironwood Public Library on Monday, April 8, 10:00 a.m. to 12:00 p.m. – 4333 East Chandler Boulevard, Phoenix, AZ 85048

Download CD Road Resources

CD Road Flyer – English

CD Road Flyer – Spanish