Project Description

The Black Mountain-Purissima Road Evacuation Route Maintenance Project in Los Altos Hills, California, provides an important egress route for a significant portion of the western area of the Los Altos Hills community in the event of an evacuation, such as during a wildfire. To secure the integrity of this route, Los Altos Hills County Fire District and Santa Clara County FireSafe Council propose roadside treatment of hazardous fuels.

 

Project Updates

  • Project began Monday, April 6, 2026.
  • Project has been postponed to April due to wet weather.
  • Please keep an eye on your mailbox! Informational postcards were mailed to property owners along the route on February 13, 2026.
  • Initial treatment was completed in March 2024. The project is now in the 2 year maintenance cycle.
  • Next maintenance treatment is scheduled for March 2026.
  • Project completed on Thursday April 9, after 4 days of work.

Media Release – March 17, 2026

Right of Entry Permit (ROE) due back date: TBD

Submission Instructions – Ways to confirm your participation:

Participation is voluntary; please follow the steps below to join this project.

  1. Fill out, sign, and submit the enclosed Right of Entry Permit (ROE)
    • Complete, sign, and mail the paper copy of the ROE, using the self-addressed, stamped envelope, also enclosed to:
      Santa Clara County FireSafe Council
      Attn: Black Mountain-Purissima Road ER Maintenance
      14380 Saratoga Avenue
      Saratoga, CA 95070-5953

OR

OR

    • Download an electronic copy of the ROE, sign via certified electronic signature, which includes time and date stamp, and return via email to Barbara Gonzalez at: bgonzalez@sccfiresafe.org
  2. If you request, a representative can meet with you, at your request, to discuss the specific work to be conducted on your property.
  3. To learn more, attend a virtual Project Community Meeting and visit: www.lahcfd.org

Project Site

This evacuation route project will treat four roads along the route. These include Black Mountain Road, Natoma Road, Elena Road, and Purissima Road.

The southwestern end of the project is located at the intersection of Black Mountain Road and Altamont Road (37.366180, -122.158790) and the northeastern end of the project is located at the intersection of Purissima Road and Arastradero Road (37.386986, -122.152411).

The length of the project is approximate:

  • The Black Mountain Road portion is 0.5 linear miles, which equates to 1 mile when accounting for treatment on both sides of the road.
  • The Natoma Road portion is 0.6 linear miles, which equates to 1.2 miles when accounting for treatment on both sides of the road.
  • The Elena Road portion is 0.6 linear miles, which equates to 1.2 mile when accounting for treatment on both sides of the road.
  • The Purissima Road portion is 0.5 linear miles, which equates to 1 miles when accounting for treatment on both sides of the road.
  • The total treatment of the project is approximately 2.2 miles in length which equates to 4.4 miles of treatment when accounting for both sides of the route.