I-15 Construction Update – July 27, 2017

Night Work Tonight

NIGHT WORK TONIGHT: Lane closures are required on northbound and southbound I-15 from Cajalco Road to the SR-60, beginning at 11 p.m. tonight, July 27, and lasting through 4 a.m. Friday, July 28. The moving lane closures are required for crews to conduct LiDAR surveying to map out the project corridor. Motorists will be allowed to travel on I-15 during the moving lane closures but speeds will be reduced to approximately 40 mph.


Intermittent Lane Closures: Pre-construction work requires daytime lane closures from 9 a.m. to 3 p.m. on the I-15 next week. The scheduled closures are:

Date Location Closures
Monday, July 31 Northbound I-15 1) I-15/SR-60 Interchange
2) Santa Ana River Bridge
Monday, July 31 Southbound I-15 1) From Limonite Avenue to the Santa Ana River Bridge
Tuesday, August 1 Northbound I-15 1) Santa Ana River Bridge
2) From Magnolia Avenue to SR-91
Tuesday, August 1 Southbound I-15 1) From Limonite Avenue to the Santa Ana River Bridge
Wednesday, August 2 Southbound I-15 1) From Cantu-Galleano Road to the Santa Ana River Bridge
Thursday, August 3 Northbound I-15 1) From Ontario Avenue to Magnolia Avenue

Motorists will still be able to travel the I-15 but should remain alert for the safety of construction crews.


I-15 Bridge Work over Santa Ana River: Construction crews will perform soil testing underneath the bridge, requiring use of a boring rig that will drill holes at various locations underneath the bridge to gather soil samples. The work is expected to take place 7 a.m. to 5 p.m. weekdays, beginning this week and lasting through September. The work is necessary to accommodate the future widening of the bridge, as part of the I-15 Express Lanes Project. Some noise is expected, but it will not exceed levels permitted by local, state, and federal regulations.

Shoulder Closures: Shoulder closures are scheduled from 6 a.m. to 4 p.m. Monday, July 31, through Friday, August 4, on the southbound I-15 from El Cerrito Road to Cajalco Road.

Lane Reduction on El Cerrito Road: The outside lane will be reduced on westbound El Cerrito Road at the I-15 undercrossing from 9 a.m. to 3 p.m., Wednesday, August 3.

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