Aldercroft heights road from 250 FT east of old santa cruz HWY to 1100 FT west of alma bridge RD PR: stabilize landslide mass, construct approx. 200

The Federal Highway Administration awarded a Project Grant of $1,281,131 to the California Department of Transportation (Caltrans) on June 26, 2025, under the Highway Planning and Construction program (CFDA 20.205). This grant funds critical stabilization and reconstruction work on Aldercroft Heights Road in California, specifically addressing a landslide hazard along a 1,100-linear-foot segment between Old Santa Cruz Highway and Alma Bridge Road. The project scope includes stabilization of the landslide mass, construction of approximately 200 linear feet of retaining wall to support the upper roadway section, regrading of the landslide toe, installation of a dewatering system to manage subsurface water, and restoration of both upper and lower roadway sections.

This project exemplifies the Highway Planning and Construction program's focus on highway safety enhancements and infrastructure preservation. By addressing the active landslide condition through engineering controls and improved drainage, the grant enables Caltrans to restore safe passage on this critical California roadway while implementing proven geotechnical solutions to prevent future failures and maintain long-term infrastructure integrity.

Project description

Aldercroft heights road from 250 FT east of old santa cruz HWY to 1100 FT west of alma bridge RD PR: stabilize landslide mass, construct approx. 200 LF retaining wall to support upper roadway section, regrade landslide TOE, install dewatering system, restore upper and lower roadways.