Drivers traveling along the SR-91 in Los Angeles County should expect overnight lane and ramp closures this week as Caltrans carries out construction work between Gardena and Cerritos. Restrictions will affect both directions of the freeway, with some extending into Saturday morning.
Work is scheduled for Monday, November 9, Thursday, November 12, and Friday, November 13. Construction will pause on Tuesday and Wednesday for the Veterans Day holiday. Monday night’s closures are expected to reopen by 4 a.m. Tuesday.
When will lanes close on the SR-91?
Both eastbound and westbound traffic will face overnight lane reductions between Vermont Avenue in Gardena and the Orange County line in Cerritos (post mile 20.7). The number of unavailable lanes and closure times will vary by location.
⚠️ Monday, November 9, and Thursday, November 12:
- Eastbound SR-91: Up to three lanes will close between Vermont Avenue and I-710 from 8 p.m. to 6 a.m.; between I-710 and I-605 from 9 p.m. to 6 a.m.; and between I-605 and the Orange County line from 10 p.m. to 5 a.m.
- Westbound SR-91: Up to three lanes will close between Atlantic Avenue and Vermont Avenue from 8 p.m. to 5 a.m., and between I-605 and Atlantic Avenue from 10 p.m. to 5 a.m. Up to two lanes will also close between the Orange County line and I-605 from 11:59 p.m. to 4 a.m.
⚠️ Friday, November 13, into Saturday, November 14:
- Eastbound SR-91: Up to three lanes will close between Vermont Avenue and I-710 from 8 p.m. to 10 a.m. Saturday. Up to two lanes will close between I-710 and I-605 from 10 p.m. to 8 a.m., while up to three lanes will be unavailable between I-605 and the Orange County line from 11:59 p.m. to 6 a.m.
- Westbound SR-91: Up to two lanes will close between Atlantic Avenue and Vermont Avenue from 8 p.m. to 10 a.m. Saturday, between I-605 and Atlantic Avenue from 11 p.m. to 7 a.m., and between the Orange County line and I-605 from 11:59 p.m. to 6 a.m.
Which freeway ramps and connectors will close?
In addition to the mainline lane reductions, construction will affect connectors linking the SR-91 with I-110, I-710, I-605, and I-405. Some will close in both directions, with restrictions starting as early as 7 p.m. Several entrance ramps will also be unavailable on Monday and Thursday nights:
⛔ Eastbound entrance ramps:
- Alameda Street
- Santa Fe Avenue
- Long Beach Boulevard
- Cherry Avenue
- Paramount Boulevard
⛔ Westbound entrance ramps:
- Main Street
- Central Avenue
- Long Beach Boulevard
- Atlantic Avenue
- Downey Avenue
Affected exits
⛔ Eastbound:
- Main Street
- Avalon Boulevard
- Acacia Avenue
- Long Beach Boulevard
- Paramount Boulevard
⛔ Westbound:
- Main Street
- Wilmington Avenue
- Alameda Street/Santa Fe Avenue
- Long Beach Boulevard
- Carmenita Avenue
On Friday night, some ramp and connector closures will remain in place into Saturday morning, with the latest scheduled reopening at 10 a.m. Detour signs will direct drivers around the affected areas.
What is the $34 million SR-91 project?
The closures are part of a $34 million project to rehabilitate and upgrade roadside and overhead signs. The work also includes lighting improvements, highway landscaping restoration, guardrail replacement, and additional measures to improve worker safety, expected to continue through summer 2029.
Drivers are encouraged to allow extra travel time and use caution near construction zones. The schedule may change due to weather or operational needs, so check Caltrans QuickMap for the latest road conditions before setting out.
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