Blackhawk GHAD


Contra Costa County, California

Project Overview

One of the first GHADs in Northern California.

ENGEO has led the implementation and monitoring of this Geologic Hazard Abatement District (GHAD) since the mid-1980s. It was one of the first GHADs in Northern California and also the first to be applied to a new residential development.

ENGEO has provided on-going monitoring services for this GHAD in accordance with the Plan of Control. We have provided extensive engineering, geologic consultation and numerous repair recommendations; the development of instrumentation monitoring and bi-annual reconnaissance to observe and report the general conditions of the slopes adjacent to the development; assessment of conditions of site drainage in the open space and common areas; preventive maintenance and operations; initial incident response and evaluation; data collection and maintenance of GHAD weather station; and general consultation on landslide and erosion hazards, analysis and mitigation schemes.

Engeo's Role

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