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24 Lafayette Slope Stabilization

This Project Has Been Completed

Daytime Project with Occasional Night Work Starts April 19

Caltrans is starting a slope stability project that will build a three-tiered wall adjacent to eastbound State Route 24 in the vicinity of Risa Road in the City of Lafayette.

Construction Details
  • Pre-construction activities in January and February 2015 included tree/brush removal in the project area.
    • The project includes replanting of landscaping that was removed earlier this year. Native species will replace non-native species such as Eucalyptus trees.
    • The majority of work (earthwork and wall construction) will take place during the day. The contractor’s regularly scheduled hours are Monday through Saturday, from 6:30 a.m. to 4:30 p.m. This aggressive work schedule is necessary to meet the environmental work window established for this project, which requires all field work be completed by October 15, 2015.
  • Night work will only be scheduled as necessary.
    • The first night of work will take place from 9 p.m. Sunday night, April 19, to 9 a.m. Monday morning, April 20, so that the contractor can restripe eastbound State Route 24 and place concrete barriers to protect workers and motorists during construction activities.
    • Additional night work and possibly Sunday work are anticipated at the end of the project in August, September and October 2015
    • There may be additional night work that is not currently anticipated or scheduled at this time; updates will be provided as the work progresses.
    • During night work, residents may notice increased noise from construction equipment and mandatory safety back-up alarms.
    • Construction of Retaining Wall No. 1 has been completed as of mid-July. Work is continuing on construction of Retaining Wall No. 2 and excavation for Retaining Wall No. 3
    • Please check the website for updates concerning infrequent night work.
This work is subject to delay due to adverse weather conditions. Please drive cautiously through the construction zone, leave a safe traveling distance between your vehicle and the vehicle ahead of you, and Slow for the Cone Zone.

Please check this webpage for construction updates and follow us on Twitter @CaltransD4. For additional information or concerns, call or email

RocQuel Johnson, Branch Chief
Office of Public Affairs:
(510) 286-4948
RocQuel_Johnson@dot.ca.gov