Construction Update – Week of Jan 4



Ongoing drainage repairs will require the full closure of the southbound 15 Hidden Valley Pkwy. on-ramp and nighttime closures of the southbound 15 to westbound 91 connector the weekend of Jan. 8-11. Additional closures are expected for the weekends of Jan. 15 and Jan. 22, weather permitting.

See below for planned closure details for Jan. 8-11: 

Date, Time Location
Friday, Jan. 8 at 9 p.m. to
Monday, Jan. 11 at 5 a.m.
Southbound 15 
Hidden Valley Pkwy. on-ramp
Lane reductions (Hidden Valley Pkwy. to 15/91 Interchange)
Friday, Saturday, Sunday nights
(Jan. 8, 9, 10)
9 p.m. to 6 a.m.
Open during daytime hours
15/91 Connector
Southbound 15 to
westbound 91 connector

DETOUR: During the Hidden Valley Pkwy. on-ramp closure, please use Main St. to access westbound 91. During the 15/91 connector closures, please use the southbound 15 Magnolia Ave. off-ramp and enter northbound 15 to access westbound 91.

Map: 91 Westbound Connectors Closure Jan 8-11 and 15-18

Map: 91 Westbound Connectors Closure Jan 8-11 and 15-18

Construction activities may be postponed or canceled due to unforeseen circumstances or inclement weather.


Weeknight lane reductions on northbound and southbound I-15, between Weirick Rd. and Route 60, will take place intermittently from 9 p.m. to 6 a.m. At least one lane will remain open at all times.


91 Express Lanes customers using the 15 south connector can enjoy the additional free miles until the 15 Express Lanes open in spring 2021. If you do not use the 91 Express Lanes for your trip, do not enter the new extension on the 15.

Elsewhere, the new 15 Express Lanes remain closed as crews continue to work. Do not drive in the closed lanes and please drive safely in the construction area.


91 Corridor Operations Project: Register for updates by texting 91COP to 80123. Visit for more info.

Hamner Ave. Bridge and Widening Project: Work has begun on this County of Riverside project. A single lane closure is planned on Hamner Ave. from Detroit St. to Citrus St. the nights of Jan. 5 and 6, from 9 p.m. to 5 a.m. For information, please call 877-278-7606 or follow @HamnerAveProject on social media.

60 Swarm: Work is continuing on the Caltrans 60 Swarm Project. Visit for details.

Due to the dynamic nature of construction, this information is subject to change.

If information is needed in another language, please contact RCTC at (951) 787-7141 for free translation services.

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