08/28/2026
CONSTRUCTION UPDATE
Timeframe: August 30 - September 12, 2026
Spotlight: In Santa Barbara North and Santa Barbara South, nighttime lane closures will begin Sept. 8 as crews prepare Highway 101 for upcoming concrete paving. Closures are scheduled from 8 p.m. to 5 a.m. Tuesday, Sept. 8, through Thursday, Sept. 10, on northbound Highway 101 between Evans Avenue and Butterfly Lane, and from 8 p.m. to 7 a.m. on southbound Highway 101 between Milpas Street and Olive Mill Road. Foundation drilling and bridge column work for the Cabrillo Boulevard Undercrossing are also underway, along with retaining wall construction. In Montecito, construction continues on the permanent concrete median barrier between Olive Mill Road and San Ysidro Road.
Closures (weather permitting)
Please drive safely through the corridor and remember to Slow for the Cone Zone. The speed limit is reduced to 55 mph for safety throughout the construction area.
Northbound Highway 101
8 p.m. to 5 a.m. Tues., Sept. 8-Thurs., Sept. 10 overnight lane closures will occur between Evans Avenue and Butterfly Lane for paving operations. During this time, the left lane will be closed Sept. 8-9, with traffic reduced to one lane on Sept. 10.
Off-ramp at Cabrillo Blvd, closed until summer 2028. Drivers can use the off-ramp at Hermosillo Rd.
Southbound Highway 101
On-ramp at Olive Mill Road will be closed overnight from 8 p.m. Thursday, Sept. 10, through 7 a.m. Friday, Sept. 11. Drivers should use the southbound on-ramp at Posilipo Lane as a detour.
8 p.m. to 7 a.m. Tues., Sept. 8-Thurs., Sept. 10 overnight lane closures will occur between Milpas Street and Olive Mill Road for paving operations. During this time, the left lane will be closed Sept. 8-9, with traffic reduced to one lane on Sept. 10.
Off-ramp at Cabrillo Blvd, closed until summer 2028. Drivers can use the off-ramp at Spring/Olive Mill Rd as a detour.
Cabrillo Blvd under Hwy 101
Flaggers will intermittently direct daytime one-way traffic beneath Highway 101 for equipment and material deliveries. Expect short delays.
S. Jameson Lane
Flaggers will direct traffic on S. Jameson Ln. as needed for safety barrier work.
Please note: Closure times may be subject to adjustment if needed due to equipment breakdowns, material compliance or delivery delays, or safety concerns during the shift. Consecutive ramps in the same direction will not be closed at the same time (unless noted) to allow drivers to use a ramp before or after a closure.
To view timelines, detours, and maps, please visit www.SBROADS.com and select the project segment or Construction Update page. Click here to view live project cameras.
Highway 101: Santa Barbara North
The Santa Barbara North segment is located between Hermosillo Rd. and Salinas St.
Highway 101 and On-and Off-Ramps at Cabrillo Boulevard Interchange
Storm drainage installation and irrigation crossover work continue throughout the project area.
Residents and businesses may notice increased daytime construction noise from foundation drilling and retaining wall work.
Cabrillo Blvd Under Hwy 101
Foundation work and drilling continue for the Cabrillo Boulevard Undercrossing (see photo above).
Crews will continue bridge column work and retaining wall construction, including installing supports and reinforcement for the bridge and constructing the retaining wall.
Flaggers will intermittently direct daytime one-way traffic beneath Highway 101 for equipment and material deliveries. Expect short delays.
Highway 101: Santa Barbara South
The Santa Barbara South segment is located between Olive Mill and Hermosillo Rds.
Highway 101 and Southbound Off-Ramp at Spring/Olive Mill Rd
Beginning Sept. 8, crews will conduct nighttime lane closures as they prepare the roadway for upcoming concrete paving. From 8 p.m. to 7 a.m. Tues., Sept. 8-Thurs., Sept. 10, overnight lane closures will occur between Milpas Street and Olive Mill Road for paving operations. The left lane will be closed Sept. 8-9, with traffic reduced to one lane on Sept. 10.
Construction continues permanent roadway improvements in the freeway median, including roadway grading, asphalt paving, and concrete paving.
Highway 101: Montecito
The Montecito segment is located between Sheffield Dr and Olive Mill Rd.
Highway 101
Construction continues on the permanent concrete median barrier between Olive Mill Rd. and San Ysidro Rd. (see photo above).
Highway 101: Padaro
The Padaro segment is located between S Padaro/Santa Claus Ln and N Padaro Ln. Improvements are built and in use for the Padaro segment.
Concrete Mix Site at N Padaro Interchange
By mixing concrete on-site, the project saves an estimated 463,771 truck miles, reduces water use by 400,000 gallons (on-site mixing uses less water), and saves taxpayers between $10-$15 million.
Concrete Recycling Continues by the Northbound Highway 101 Off-Ramp at N. Padaro Ln.
For more information, please visit our project website at www.SBROADS.com, call us at (805) 845-5112, or email the project at [email protected].
BACKGROUND
Highway 101: Carpinteria to Santa Barbara is a project undertaken by Caltrans and Santa Barbara County Association of Governments (SBCAG) in cooperation with local agencies to add a new carpool lane in each direction between Carpinteria and Santa Barbara. The project will improve bridges, interchanges, on- and off-ramps, and add sound walls. Highway 101: Santa Barbara North is the last segment under construction as part of Highway 101: Carpinteria to Santa Barbara project.
This email update is sent as a courtesy to those interested in project construction. The project team aims to provide accurate information, but please expect schedule changes due to weather and on-site revisions needed by the contractor. To remove or add someone to the update distribution, please respond to this email.
Please click on this link for more info:
https://www.sbroads.com/projects/construction-update.aspx
