As construction continues on the I-10 Express Lanes, crews are working throughout the ten-mile corridor on demolition and reconstruction of bridges, retaining walls, sound walls, utility relocation, and pavement rehabilitation. There are several street and ramp modifications, freeway closures, 55-hour lane closures, and 10-day ramp closures being scheduled. Dates are subject to change. Additional information including detours will be shared and posted to the project Google Map at goSBCTA.com/i10corridor. Upcoming activities include:

55-Hour Freeway Lanes and Ramp Closure: Scheduled to begin Friday, May 20 at 10:00 p.m. through Monday, May 23 at 5:00 a.m. three lanes of westbound (WB) I-10 from Vineyard Avenue to 4th Street will be closed while crews repave lanes. The WB Vineyard Avenue on-ramps and 4th Street off-ramp will be closed and detour routes will be posted.

WB I-10 Euclid Avenue On-Ramp Closure: Scheduled for May 20 at 9:00 p.m., the WB I-10 on-ramp from southbound (SB) Euclid Avenue is scheduled to temporarily close for construction for approximately seven months. 

• Motorists traveling SB on Euclid Avenue will be able to access the WB I-10 Euclid Avenue loop on-ramp with a new left-turn only lane.

• Temporary traffic lights will be in place to assist motorists entering the WB I-10 loop on-ramp.
• Parking on SB Euclid Avenue from 8th Street to 7th Street will be prohibited.

To learn more about these changes, join the project team in a Zoom webinar on May 11 at either 12:00 p.m. or 6:00 p.m. (both webinars will feature the same presentation.) Click here to learn more and sign up. 

Eighteen bridges throughout the corridor are being replaced, widened, or improved to accommodate the widening of the freeway. Work on the bridges may be loud and you may feel vibration at times during both daytime and nighttime hours.

Below is an overview of the current bridge work:

• San Antonio Creek Channel: The I-10 over San Antonio Creek is being widened. This work began in August 2021.

• Monte Vista Avenue: Crews continue to relocate underground utilities at Monte Vista Avenue and are building a new center median of the freeway. Work on Monte Vista Avenue began in spring 2020. Monte Vista Avenue under I-10 is reduced to one lane in each direction during daytime hours and will be closed nightly from 7:00 p.m. to 5:00 a.m. Monday through Saturday. Daytime and nighttime activities include building the back wall and relocating utilities and drainage.

• Central Avenue: In November 2020, a portion of the eastbound (EB) I-10 shoulder over Central Avenue was removed. Crews are building a wider section of the bridge. Central Avenue may be reduced to one lane in each direction during nighttime hours. Nighttime activities include demolishing the the WB I-10 shoulder and barrier over Central Avenue.

• Benson Avenue: A portion of the EB I-10 shoulder over Benson Avenue was removed in December 2020 and is being rebuilt into a wider configuration. Crews are now demolishing the WB I-10 shoulder. Benson Avenue is reduced to one lane in each direction during daytime hours and may be intermittently closed during nighttime hours. 

• Mountain Avenue: The outer portions of the EB and WB I-10 over Mountain Avenue was demolished and will be rebuilt into a wider configuration. Daytime and nighttime activities include earthwork, building portions of bridge footing and demolishing portions of the bridge walls next to the WB I-10.

• San Antonio Avenue: San Antonio Avenue over I-10 is scheduled to be demolished in 2022.

• Euclid Avenue: Crews demolished and rebuilt the east side of the bridge. The west side of the bridge was demolished in April 2022. Daytime and nighttime activities include installing steel plates into the ground (shoring) and utility installation and relocation.

• Sultana Avenue: The Sultana Avenue bridge over I-10 is now open.

• Campus Avenue: Campus Avenue over I-10 was demolished in October 2021. Daytime activities include installing steel plates into the ground (shoring), excavating the bridge walls and building footings.

• 6th Street: 6th Street over I-10 was demolished in October 2021.

• Grove Avenue: A portion of the EB and WB I-10 shoulder over Grove Avenue was removed in December 2020. Grove Avenue under I-10 will be closed nightly. Daytime activities include building portions of the bridge.

• 4th Street: Crews continue to relocate underground utilities at 4th Street and are building a new wider section of the EB side of the freeway. Work on 4th Street began in spring 2020. 4th Street between El Dorado Avenue and Baker Avenue is reduced to one lane in each direction during daytime hours and will be intermittently closed from 7:00 p.m. to 5:00 a.m., Monday through Friday. Daytime and nighttime activities include building portions of bridge walls and utility installation and relocation.

• Vineyard Avenue: The east side of Vineyard Avenue over I-10 was partially demolished in March 2021 and is being rebuilt into a wider footprint to accommodate the Express Lanes. Vineyard Avenue over I-10 may have reduced lanes during daytime and nighttime hours. Daytime activities include building portions of the bridge and utility work.

• Cucamonga Wash Bridge: The EB I-10 over the Cucamonga Wash is being widened. Work began in September 2021. Daytime activities include building the approach slabs.

• Day Canyon Channel: Work began in August 2021 to widen the I-10 over Day Canyon Channel.

Freeway lane closures are necessary for crews to remove trees, perform maintenance, and demolish and rebuild retaining walls, sound walls, and bridges.

• Scheduled intermittent nighttime connector ramp closures (11:00 p.m. to 5:00 a.m.):
• Northbound (NB) I-15 to WB/EB I-10
• SB I-15 to WB I-10

• Intermittent nighttime lane closures (9:00 p.m. to 5:00 a.m.): EB and WB I-10 between Fairplex Drive and I-15. At least one lane in each direction on I-10 will remain open.

• Intermittent daytime lane closures: EB and WB I-10 between Indian Hill Boulevard and Euclid Avenue. Four lanes in each direction on I-10 will remain open. These closures will occur between 9:00 a.m. and 2:00 p.m.

Intermittent nighttime EB and WB I-10 on- and off-ramp and ramp lane closures will occur throughout the project corridor. Detour routes are posted. Please check the Google Map for the most updated information.

• EB I-10 Vineyard Avenue off-ramp closed through Friday, May 13 at 5:00 a.m.



• Monte Vista Avenue EB on-ramp closed in August 2020 and will be closed for approximately two years. Detour routes include Arrow Highway and Palo Verde Street to Central Avenue.



• EB I-10 Monte Vista Avenue off-ramp, WB I-10 Monte Vista Avenue on- and off-ramps may be completely closed or limited to right-turns only from 7:00 p.m. to 5:00 a.m.

• Scheduled intermittent nighttime EB and/or WB on- and off-ramp closures (detour routes will be posted): Indian Hill Boulevard, Mountain Avenue, Euclid Avenue, 4th Street, Vineyard Avenue, Archibald Avenue, Haven Avenue, Milliken Avenue, and Etiwanda Avenue.

Crews are removing and building sound walls and retaining walls, relocating utilities, and removing trees on several local streets adjacent to the I-10; at times this work may be loud and you may feel vibration. One side of the sidewalk will always remain open. Flaggers may be onsite to direct traffic. Please check the Google Map for the most updated information including closures, detours, and wall locations.

• Daytime and/or nighttime lane closures (streets will remain open):
• Monte Vista Avenue, Palo Verde Avenue, Central Avenue, Mountain Avenue, Benson Avenue, San Antonio Avenue, Euclid Avenue, Grove Avenue, 4th Street, Princeton Avenue, and Vineyard Avenue

• Nighttime street closures (detour routes will be posted); businesses will remain accessible:
• Monte Vista Avenue: NB/ SB street closed under I-10 (7:00 p.m. to 5:00 a.m.)
• Palo Verde Street: WB street closed from Central Avenue to Monte Vista Avenue
• Benson Avenue: NB/SB street intermittently closed under I-10
• Grove Avenue: NB/SB street closed under I-10
• 4th Street: NB/SB street intermittently closed under I-10 (7:00 p.m. to 5:00 a.m.)

• Retaining wall and sound wall locations:
• EB I-10: intermittently from Benson Avenue to Haven Avenue
• WB I-10: approaching Haven Avenue, from 4th Street to Grove Avenue, and intermittently from 6th Street to Central Avenue

The west side of the Euclid Avenue bridge over I-10 was demolished on April 29 and 30. Crews will continue to demolish the walls and footings before rebuilding the bridge into a wider footprint.