Hwy 101 Improvements between Milpas St. and Hot Springs Rd.

Two Week Project Update for Sepember 19 - October 2, 2010

Planned Work Activities:

* Milpas St. under Hwy 101 closed at night as needed for bridge work; drivers can use the new Hwy 101 hook off-ramp and the Mason, Quarantina, and Cacique Sts. detour

* Cacique St. under-crossing: rebar work continues on arches under bridge and bridge deck

* Sycamore Creek bridge: drainage work and construction of inside shoulder barrier continues; bridge deck poured

* Southbound Hwy 101 guardrail work in the shoulder areas between Milpas St. and Los Patos Way

* Montecito: handrail installation at new pedestrian crossing between Old Coast Hwy and Cabrillo Blvd

Hwy 101 will continue to have 2 lanes open during the day in each direction.

Hwy 101 bridge widening over Milpas St.:

Crews will continue rebar and falsework for the arches under the bridge and bridge deck. Please note: during bridge construction, clearance under the Hwy 101 bridges at Milpas St. will be 14‘8” through February 2011.

At night as needed, Milpas St. under Hwy 101 will be closed from 9pm to 6am weekdays. During the day, Milpas St. will have one lane open in each direction under Hwy 101 and the Hwy 101 on and off-ramps at Milpas St. will remain open. Drivers can use the new Hwy 101 hook off-ramp at Milpas St. and the Mason, Quarantina, and Cacique Sts. detour (see map below) during the nighttime closures.

Milpas St. nighttime closures detour route map

Milpas detour map
Click to enlarge photo


Milpas detour map

Cacique St. under-crossing:

Crews are continuing rebar and temporary support structure work on bridge arches and decking.

Northbound Hwy 101:

At Sycamore Creek bridge, crews have poured the bridge deck and will continue work on drainage improvements. Work begins on the inside shoulder barrier.

Southbound Hwy 101:

Crews will work on extending guardrails in the shoulder area between Milpas St. and Los Patos Way.


Crews have added visors to the signal heads at Cabrillo Blvd. and the Hwy 101 ramps. At the roundabout, work will continue on new handrails at the pedestrian crossing between Old Coast Hwy and Cabrillo Blvd. Flagmen will be on Old Coast Hwy as needed during installation near the roadway. New signs will also be added to the roundabout over the next two weeks.

Rideshare Incentives:

SBCAG, Caltrans, and the project team are encouraging drivers to reduce single-occupant vehicle trips during construction with the Curb Your Commute program. Curb Your Commute with incentives and resources to help you reduce your time on the road and improve your quality of life. Traffic Solutions is offering carpool matching, enhanced bus service, commuter cash incentives, free vanpooling and employer assistance. Visit the rideshare page on

Project Information:

The Highway 101 Operational Improvements between Milpas and Hot Springs include the reconstruction of two major interchanges, six new or improved bridges, freeway widening, and improvements to local streets and pedestrian pathways. The $53 million construction and landscaping project is funded by Proposition 1B and $13 million Measure D dollars. This project is a joint Santa Barbara County Association of Governments, Caltrans, and City of Santa Barbara highway and local street improvement program.

Construction is currently in Stage 2 work, and overall construction is anticipated through 2012. The majority of construction will occur behind concrete barriers during daytime work hours; some nighttime lane closures will occur. Motorists should expect an estimated 10 minutes of added travel time in each direction.

Additional Information online at: SB and


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