012921 Los Alamos bridge replacement

An artist rendering shows how the Highway 101 bridge over Highway 135 in Los Alamos might appear once a reconstruction project is completed by summer 2022.

Reconstruction of the bridge at the Highway 101 bridge at the Highway 135 interchange in Los Alamos began Monday, a Caltrans District 5 spokesman said. 

The $10 million project, overseen by CalPortland of Santa Maria, will involve demolishing the bridge and installing girders and is expected to be complete by summer 2022. 

Motorists will encounter one-way reversing traffic control on Highway 135 between Main Street and San Antonio Boulevard from 8 a.m. to 4 p.m. Monday through Friday and overnight from 8 p.m. to 6 a.m., the spokesman said.

Delays are not expected to exceed 15 minutes.

Tree work scheduled to begin the week of Feb. 8 will lead to overnight lane closures in both directions of Highway 101 at that location from 7 p.m. until 6 a.m. Monday through Friday as well as ramp closures between 8 p.m. and 6 a.m.

Closures are expected in May, July and October, as well as January and April 2022, when Highway 101 motorists will be detoured to Los Alamos via Cat Canyon Road, he said.

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A shuttle service will be provided for pedestrians, bicyclists and those using wheelchairs when Highway 135 is closed, the spokesman said.

Electronic message boards will be posted to advise all travelers about the lane closures and detours, the spokesman said.

For traffic updates on other state highways in Santa Barbara County, call the Caltrans District 5 Public Affairs Office at 805-549-3318 or visit https://dot.ca.gov/caltrans-near-me/district-5.

Lisa André covers lifestyles and local news for Santa Ynez Valley News and Lompoc Record.