Santa Cruz, CA
831.421.9291
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  Portland, OR
503.227.5979
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Geyer Quarry Restoration Plan

geyer fullview webClient: Resource Conservation District of Santa Cruz County

Waterways was retained by the Resource Conservation District of Santa Cruz County (RCD) to prepare a sediment source analysis and action plan for the recently acquired Geyer Quarry property. The Land Trust of Santa Cruz County purchased the property in 2008 to provide protection to a portion of the unique and delicate Sandhill ecosystem that extends from Bonny Doon through the Scotts Valley area of the Santa Cruz Mountains. Mining activity, road construction, logging, and off‚Äźhighway vehicle (OHV) use have exposed steep, denuded hillslopes in many locations throughout the parcel. These sources of erosion have caused excessive sediment delivery to the San Lorenzo River and its key tributaries (in this case Bean Creek and Zayante Creek) resulting in impacts to salmonid habitat.

Three high priority projects to reduce sediment delivery to these waterways were identified in the action plan, from which conceptual level designs and cost estimates were developed. These included stabilization of an eroding gully; repairs, maintenance, and enhancements to an existing sediment detention basin; and a guide for decommissioning, repair, and maintenance of the existing road and trail network. Waterways provided design and construction observation services for the trail system improvements which were implemented in summer 2010. Enhancements to the sediment basin and stabilization of the gullies will be implemented in the near future, pending receipt of grant funding.