Broadway Curve Improvement Project

Constructing Concrete Barrier Walls: The Slipforming method

Constructing Concrete Barrier Walls: The Slipforming method

Constructing Concrete Barrier Walls: The Slipforming method

By the I-10 Broadway Curve Improvement Project Team / ADOT Communications

March 1, 2024

Crews preparing for using the slipforming method to build a concrete barrier

We see them all along the freeways, concrete barrier walls, placed to help protect drivers. When constructing these walls, crews can use different methods. One method is called slipforming.

Crews with the I-10 Broadway Curve Improvement Project are using the slipforming method to construct concrete barriers in some areas of the project. When this method is used, a concrete machine continuously pours concrete into a desired form or shape such as the barrier wall shown below.

Before construction of a concrete barrier wall using the slip forming method begins, rebar cages are placed into the ground and then concrete is poured around the rebar, creating a footing or base for the new barrier wall. Crews then bring in a concrete machine. Concrete is fed into one side of the machine and then on the other side of the machine, the concrete is poured into a desired shape or form such as a concrete barrier wall and this is what is referred to as the “slipforming” method.

Once the wall is placed, crews smooth out and finish the wet concrete and then let it cure for 3-7 days.

View this Behind the Scenes video on slipforming.

Learn more about the I-10 Broadway Curve Improvement Project by visiting I10broadwaycurve.com or by downloading the free project mobile app called TheCurve.

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Eastbound I-10 to close between SR 51 and US 60 (Feb. 16-19)

Eastbound I-10 to close between SR 51 and US 60 (Feb. 16-19)

Eastbound I-10 to close between SR 51 and US 60 (Feb. 16-19)

February 13, 2024

Plan to use detours and expect delays

PHOENIX - The Arizona Department of Transportation is advising motorists to plan ahead and expect delays as eastbound Interstate 10 between SR 51 and US 60 will be closed from 10 p.m. Friday, Feb. 16, through 4 a.m. Monday, Feb. 19, for a traffic shift. At the same time, the following will be closed.

The eastbound I-10 on-ramps at Third, Seventh, and Jefferson streets, Buckeye Road, 24th, 32nd and 40th streets and Broadway Road
The loop ramp from southbound SR 143 to eastbound I-10
The southbound I-17 on-ramps at Seventh Avenue and Seventh Street
The ramp from southbound I-17 to eastbound I-10
The westbound Loop 202 (Red Mountain Freeway) ramp to eastbound I-10.
The southbound SR 51 on ramp at McDowell Road
The ramps from southbound SR 51 to eastbound I-10
The high-occupancy vehicle (HOV) ramp from eastbound I-10 to eastbound Loop 202 (Red Mountain Freeway)

Detour: Use eastbound Loop 202 (Red Mountain Freeway) to southbound Loop 101 (Price Freeway) to westbound US 60 or westbound Loop 202 (Santan Freeway) to access eastbound I-10 beyond the closure. Drivers traveling on southbound I-17 can use westbound I-10 to eastbound Loop 202 (Red Mountain Freeway).

West Valley drivers heading to the Southeast Valley can bypass the closure by using Loop 202 (South Mountain Freeway). From I-10 and 59th Avenue, travel south and east to connect with eastbound I-10 south of Chandler Blvd.

New lane configuration: When eastbound I-10 reopens, drivers can expect a new lane configuration. The existing split between 48th Street and Broadway Road will shift with a roadway barrier and work zone in between. There will be three lanes to the left of the work zone and two lanes to the right of the work zone. Drivers wishing to exit onto US 60 using the general purpose lanes are encouraged to move into the right two lanes before 48th Street. HOV lane access to eastbound US 60 will be unchanged.

Please note: 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.

Southbound SR 143 ramp to eastbound I-10 to close (Jan. 26-29)

Southbound SR 143 ramp to eastbound I-10 to close (Jan. 26-29)

Southbound SR 143 ramp to eastbound I-10 to close (Jan. 26-29)

January 23, 2024

Broadway Road also closed between 48th and 52nd Streets

PHOENIX - The Arizona Department of Transportation is advising motorists to plan ahead and expect to use detours as the southbound SR 143 ramp to eastbound I-10 will be closed from 10 p.m. Friday, Jan. 26 through 4 a.m. Monday, Jan. 29 for a traffic shift. At the same time, the following will be closed.

Broadway Road in both directions between 48th and 52nd Streets
The eastbound I-10 on ramp at Broadway Road
The connector ramp between 48th Street and Broadway Road

Eastbound I-10 detour: Use southbound SR 143/48th Street to westbound Broadway Road to northbound 40th Street to access eastbound I-10.

Westbound Broadway Road detour: Use westbound I-10 to southbound 40th Street to access eastbound I-10 and Broadway Road west of the closure.

Eastbound Broadway Road detour: Use southbound 48th Street to eastbound Southern Avenue to northbound Priest Drive to access Broadway Road east of the closure.

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Southbound SR 143 to close between Loop 202 (Red Mountain Freeway) and I-10 (Jan 5-8)

Southbound SR 143 to close between Loop 202 (Red Mountain Freeway) and I-10 (Jan 5-8)

Southbound SR 143 to close between Loop 202 (Red Mountain Freeway) and I-10 (Jan 5-8)

January 2, 2024

Northbound 48th Street/SR 143 will also be closed between Broadway Road and University Drive

PHOENIX - The Arizona Department of Transportation is advising motorists to plan ahead and expect to use detours as southbound State Route 143 will be closed between Loop 202 (Red Mountain Freeway) and I-10 from 10 p.m. Friday, Jan. 5 to 4 a.m. Monday, Jan 8 for a traffic shift. At the same time the following ramps will be closed:

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

Southbound SR 143 detour for westbound Loop 202 drivers: Use westbound Loop 202 (Red Mountain Freeway) to eastbound I-10 to access destinations south of the closure. To access University Drive and Washington Street, use eastbound I-10 to northbound 40th Street.

Southbound SR 143 detour for eastbound Loop 202 drivers: Use eastbound Loop 202 (Red Mountain Freeway) to southbound Loop 101 (Price Freeway) to westbound US 60 to access destinations south of the closure. To access University Drive, use eastbound Loop 202 (Red Mountain Freeway) to southbound Priest Drive.

In addition to this closure, northbound 48th Street/SR 143 between Broadway Road and University Drive will be closed and the westbound I-10 ramp to northbound SR 143 will be closed.

Northbound 48th Street detour: Use westbound Broadway Road to northbound 40th Street or Priest Drive to access University Drive.
Westbound I-10 ramp to northbound to northbound SR 143 detour: Use westbound I-10 to eastbound Loop 202 (Red Mountain Freeway). Use northbound 24th Street to access the airport. Use southbound 44th Street to access Washington St.

New northbound 48th Street configuration: Drivers will begin using new northbound 48th Street lanes to access northbound SR 143 when the roadway reopens. The existing northbound 48th Street lanes will be permanently closed and eventually removed.

East Valley airport and Washington Street access: From Loop 202 (Red Mountain Freeway), use southbound 44th Street.

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Milestones and Progress: I-10 Broadway Curve Improvement Project 2023 Year in Review

Milestones and Progress: I-10 Broadway Curve Improvement Project 2023 Year in Review

Milestones and Progress: I-10 Broadway Curve Improvement Project 2023 Year in Review

By the I-10 Broadway Curve Improvement Project Team / ADOT Communications

December 30, 2023

Multiple construction vehicles in the foreground with Interstate 10 in the background. These vehicles are working on the Broadway Curve Improvement Project.

2023 is just about over and for the I-10 Broadway Curve Improvement Project, significant progress was made in the last 12 months. Let’s take a look back at some of the major construction work successes.

Throughout the year, we saw a lot of bridge work. The previous 48th Street and Broadway Road bridges were removed and the new ones opened up to motorists earlier in the year. Also, work began on the construction of new I-10 bridges over Southern Avenue, and two new multiuse bridge trusses were placed over I-10 near Alameda Drive and the Western Canal. Work to widen the I-10 bridge over the Salt River also continued throughout 2023.

Summer 2023 saw the commencement of motorists using the new westbound US 60 to westbound I-10 ramp-an essential step in streamlining traffic flow and improving connectivity between these two major freeways. At the same time, construction work accelerated at the I-10 and SR 143 interchange, laying the groundwork for smoother transitions for motorists transitioning from the I-10 and SR 143 freeways and vice versa.

We also saw a lot of construction on new sound and retaining walls throughout the project, changing the landscape all along the project corridor.

In fall of 2023, crews began work to convert the Tempe Drain that runs parallel to westbound I-10 near I-10 and 32nd Street. The conversion consists of lining the drain with concrete instead of rock, making the drain more efficient for freeway water runoff.

As we say goodbye to 2023, we look forward to 2024 and the I-10 Broadway Curve Improvement Project’s future construction work milestones and successes. Stay tuned as we continue to navigate towards a future of improved and enhanced mobility and connectivity in the region.

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Enhancing the I-10 Broadway Curve: Revamping Tempe Drain for improved freeway safety, efficiency

Enhancing the I-10 Broadway Curve: Revamping Tempe Drain for improved freeway safety, efficiency

Enhancing the I-10 Broadway Curve: Revamping Tempe Drain for improved freeway safety, efficiency

By the I-10 Broadway Curve Improvement Project Team / ADOT Communications

December 8, 2023

The Tempe Drain that is being improved as part of the Broadway Curve Improvement Project

Keeping excess amounts of water off freeways is always a goal when designing and constructing roadways and crews with the Interstate 10 Broadway Curve Improvement Project are working to ensure that this goal is met.

One of the major components of the I-10 Broadway Curve Improvement Project includes widening I-10 by adding more lanes through the Broadway Curve area and that addition willsubsequently increase stormwater runoff from the highway. In order to ensure that large amounts of water stay off the freeway, crews are improving the Tempe Drain that runs along westbound I-10 near 32nd Street.

Work in this area consists of converting the lining of the Tempe Drain from rock to concrete, which will help increase water capacity flow as the water flows towards and empties into the Salt River. This conversion will also help reduce maintenance needs in the drain area.

Once work is completed, about a half mile of the Tempe Drain will be newly lined with concrete and in some areas will be as wide as 40 feet.

You can learn more about the I-10 Broadway Curve Improvement Project by visiting i10broadwaycurve.com and download the free project mobile app called The Curve.

Also, watch the I-10 Broadway Curve Improvement Project Behind the Scenes video on the Tempe Drain below:

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Southbound SR 143 to close between Loop 202 (Red Mountain Freeway) and I-10 (Nov. 17-18)

Southbound SR 143 to close between Loop 202 (Red Mountain Freeway) and I-10 (Nov. 17-18)

Southbound SR 143 to close between Loop 202 (Red Mountain Freeway) and I-10 (Nov. 17-18)

November 14, 2023

Drivers should expect delays and plan for detours

PHOENIX – The Arizona Department of Transportation is advising motorists to plan ahead and anticipate delays as southbound SR 143 will be closed between Loop 202 (Red Mountain Freeway) and I-10 from 10 p.m. Friday, Nov. 17 to 10 p.m. Saturday, Nov. 18, for a traffic shift. The following ramps will be closed.

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

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

Southbound SR 143 detour for eastbound Loop 202 drivers: 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.

East Valley airport access: From Loop 202 (Red Mountain Freeway), use the Sky Harbor Boulevard entrance.

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

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Westbound I-10 to close between US 60 and 40th Street (Nov. 17-20)

Westbound I-10 to close between US 60 and 40th Street (Nov. 17-20)

Westbound I-10 to close between US 60 and 40th Street (Nov. 17-20)

November 14, 2023

Drivers should expect delays and plan for detours

PHOENIX – The Arizona Department of Transportation is advising motorists to plan ahead and anticipate delays as westbound I-10 will be closed between US 60 and 40th Street from 10 p.m. Friday, Nov. 17 to 4 a.m. Monday, Nov. 20 for a traffic shift. The following ramps will also be closed:

The ramps from westbound US 60 to westbound I-10
The westbound I-10 ramps at Elliot, Baseline and Broadway roads.
The westbound US 60 on-ramps at McClintock Drive, Rural Road and Mill Avenue

Westbound I-10 detour: Use eastbound Loop 202 (Santan Freeway) or eastbound US 60 to northbound Loop 101 (Price Freeway) to westbound Loop 202 (Red Mountain Freeway) to access westbound I-10. Drivers heading to the West Valley can bypass the work zone by using Loop 202 (South Mountain Freeway) west and north to connect with I-10 at 59th Avenue.

Motorists traveling westbound on I-10 and US 60 heading to Phoenix Sky Harbor International Airport should use northbound Loop 101 (Price Freeway) to westbound Loop 202 (Red Mountain Freeway) and use the Sky Harbor Boulevard entrance.

New westbound lane configuration: When the freeway reopens, the existing lanes between Broadway Road and 40th Street will be split with roadway barriers and work zones in between lanes. Drivers wishing to exit onto northbound SR 143 should select the right two lanes. Drivers wishing to exit onto 40th Street should select the middle two lanes. To view the new configuration map and animation, visit this link here.

NOTE: Several other ramp and lane closures are also scheduled this weekend. For a complete list of up-to-date project-related restrictions and closures, visit i10broadwaycurve.com/alerts.

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Westbound I-10 to close between Loop 202 (Santan/South Mountain Freeway) and US 60 (Oct. 13-16)

Westbound I-10 to close between Loop 202 (Santan/South Mountain Freeway) and US 60 (Oct. 13-16)

Westbound I-10 to close between Loop 202 (Santan/South Mountain Freeway) and US 60 (Oct. 13-16)

October 13, 2023

Drivers should expect delays and plan for detours

PHOENIX – The Arizona Department of Transportation is advising motorists to plan ahead and expect to use detours as westbound I-10 will be closed between Loop 202 (Santan/South Mountain Freeway) and US 60 from 10 p.m. Friday, Oct. 13 to 4 a.m. Monday, Oct. 16 as crews conduct bridge work as part of the I-10 Broadway Curve Improvement Project. At the same time, the following ramps will be closed:

The westbound I-10 on-ramps at Wild Horse Pass Boulevard/Sundust Road, Chandler Boulevard, and Ray, Warner, Elliot and Baseline roads
The westbound Loop 202 (Santan Freeway) ramps to westbound I-10
The eastbound Loop 202 (South Mountain Freeway) ramp to westbound I-10

Westbound I-10 detour: Use eastbound Loop 202 (Santan Freeway) to northbound Loop 101 (Price Freeway) to westbound US 60 or westbound Loop 202 (Red Mountain Freeway) to access westbound I-10 beyond the closure.

Drivers heading to the West Valley can bypass the closure by using the Loop 202 (South Mountain Freeway) west and north to connect with I-10 at 59th Ave.

Please note: 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.

Westbound I-10 to close between US 60 and 32nd Street (June 2-5)

Westbound I-10 to close between US 60 and 32nd Street (June 2-5)

Westbound I-10 to close between US 60 and 32nd Street (June 2-5)

May 31, 2023

Plan ahead and expect to use detours

PHOENIX –The Arizona Department of Transportation is advising motorists to expect delays and plan ahead as westbound Interstate 10 is closed between US 60 and 32nd Street from 10 p.m. Friday, June 2, to 4 a.m. Monday, June 5. Crews with the Interstate 10 Broadway Curve Improvement Project will be conducting a traffic shift and bridge work.

The following ramps will also be closed.

The ramps from westbound US 60 to westbound I-10.
The ramp from southbound SR 143 to westbound I-10.
The westbound I-10 on-ramps at Elliot, Baseline, and Broadway roads and 40th Street.
The westbound US 60 on-ramps at McClintock Drive, Rural Road and Mill Avenue.

Detour: Use eastbound Loop 202 (Santan Freeway) or eastbound US 60 to northbound Loop 101 (Price Freeway) to westbound Loop 202 (Red Mountain Freeway) to access westbound I-10.

West Valley drivers can bypass the work zone by using Loop 202 (South Mountain Freeway) west and north to connect with I-10 at 59th Avenue.

Motorists traveling westbound on I-10 and US 60 heading to Phoenix Sky Harbor International Airport should head northbound on Loop 101 (Price Freeway) to westbound Loop 202 (Red Mountain Freeway) and use the Sky Harbor Boulevard entrance from Loop 202.

New westbound US 60 to westbound I-10 ramp to open on Monday, June 5: Drivers will begin using the new westbound US 60 ramp to westbound I-10 when westbound I-10 reopens on Monday, June 5. The existing bridge will be permanently closed and eventually removed.

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