The mural inside the Butterfly Lane Pedestrian undercrossing will be retained.

The mural inside the Butterfly Lane Pedestrian undercrossing will be retained. (Courtesy photo)

A long-term 24/7 closure of the Highway 101 pedestrian undercrossing at Butterfly Lane will begin Monday, Dec. 6 for a major improvement project.

The project will include reconstructing the stairs and adding new ramps for wheelchair and mobility scooter access at each end of the undercrossing that are compliant with the Americans with Disabilities Act. The railroad crossing at the south side of the undercrossing will include a new walkway, handrails and crossing arms with visual and audio signals.

The mural inside the undercrossing will be maintained as part of this project.

Pedestrians and cyclists are encouraged to use the Olive Mill Road overcrossing as a detour during this construction project. Notices will be posted to advise all travelers about the temporary closure of this undercrossing.

Contractor for the $3.7 million project is C.A. Rasmussen Inc. of Valencia, California. This project is expected to be completed next summer.

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

Caltrans reminds motorists to move over and slow down when driving through highway construction zones.