Stevens Creek Dam Plan

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Stevens Creek Dam Failure Plan

The Stevens Creek Dam and Reservoir is an earthen and rock 1,000 foot long dam rising 120 feet above the valley floor. Designed to trap 4,000 acre-feet of water, its current capacity is 3,138 acre-feet. The facility is owned and operated by the Santa Clara Valley Water District (SCVWD). The surrounding 1,042-acres are operated as Stevens Creek County Park, a unit of the Santa Clara County Parks and Recreation Department. The park abuts the Monta Bello Open Space Preserve’s Piccetti Ranch Area to the west, the Fremont Older Open Space Reserve to the east, and the City of Cupertino to the north. Additionally, the waters of the reservoir could reach the cities of Sunnyvale, Mountain View, Los Altos, and Santa Clara County unincorporated areas. In the United States dam failures are rare but they do occur. Although the risk of dam failure is uncertain, there is a high probability of a major earthquake occurring in the San Francisco Bay Area, potentially increasing our failure risk.

This Plan identifies how the cities, public and private agencies, special districts, non-governmental organizations and mutual aid organizations will prepare, respond, recover and mitigate a failure of the Stevens Creek Dam and Reservoir.

The goals of this plan are to:

  • Mitigate the dam hazard, and
  • Prevent or minimize injury and loss of lives
This plan is intended to provide guidance, direction and clarification to all participatory organizations involved in the dam failure preparation, response, recovery and mitigation activities.
 
The document includes:

  •  Hazard analysis
  •  Identified inundation areas
  •  Roles and responsibilities of all stakeholders
  •  Evacuation guidelines
Download Stevens Creek Dam Plan