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cbec is providing peer review as part of a revision of an EIS/R associated with a proposed development project at Grady Ranch, part of Skywalker Properties, Marin County, CA. The EIS/R is being undertaken by MCFCWCD. cbec staff has performed field geomorphic reconnaissance of Miller Creek and has conducted peer review of design strategies associated with restoration of this heavily degraded creek. The design of … Continue reading Grady Ranch EIS/EIR Review »

This project is a follow-on project to the recently constructed Bear River Levee Setback project although it is approximately three times the size of the Bear River project in terms of setback area and length of new levee (length of new levee = 5.7 miles). Dr. Bowles was the project director under a previous company (not cbec) for the geomorphic and ecosystem enhancement section of … Continue reading Feather River Levee Setback Project »

cbec was contracted by NCPA to perform a Sedimentation Rate Study at McKay’s Point Reservoir. cbec performed a bathymetric survey to document existing conditions in October 2011 and developed a set of plan drawings. The existing conditions data was compared to previous bathymetric surveys performed in 1997, 2000, and 2005, and used to characterize sedimentation rates of the reservoir. Stage versus storage volume relationships were … Continue reading McKay’s Point Reservoir Sedimentation Rate Study »

cbec was contracted by NMFS to construct a two-dimensional hydrodynamic model. The model is capable of quantifying steelhead migration suitability and habitat availability over a range of discharges for subsequent use by NMFS staff. The results of this study will be used to support the NMFS in evaluating the effects of Bradbury Dam on steelhead trout in the Santa Ynez River. MORPHO2D was used to … Continue reading Santa Ynez River Two-Dimensional Flow Model »

This project intends to improve fish and wildlife habitat, water quality, and recreational opportunities in Squaw Creek and its adjacent meadow by rehabilitating the natural hydrologic, geomorphic and ecological functions of the system. A variety of historic and ongoing anthropogenic modifications (e.g., watershed logging and ski resort development, grazing in the meadow, channel modifications, bank hardening, floodplain grading, hydrologic alteration, etc.) have degraded the functional … Continue reading Lower Squaw Creek Restoration Project »

cbec performed a geomorphic assessment of the lower Yuba River adjacent to the Yuba Goldfields. The focus of the effort was to assess the historic rates and predict future rates of lateral migration of the river and subsequent erosion of the training walls.  The training walls were built from unconsolidated gravel and cobble to confine the river to an alignment to the north of its … Continue reading Yuba Goldfields Fluvial Geomorphic Assessment »

The Cougar Wetlands are part of a larger broad-based effort to restore and safeguard the integrity of the Cosumnes River, the last undammed river flowing from the Sierra Nevada to the Central Valley. cbec was contracted by Ducks Unlimited and the US Bureau of Land Management to analyze proposed habitat enhancements. Proposed restoration actions at Cougar Wetlands include the breaching of existing levees and the … Continue reading Cougar Wetlands Habitat Improvement Analysis »

Creek restoration in the Arcade Creek Park Preserve involves creek bank terracing and stabilization and eucalyptus and Himalayan blackberry removal. Re-contouring of creek banks to reduce slopes and application of biotechnical treatments will be implemented to limit future erosion. Replanting of natives will follow eucalyptus and blackberry removal to further stabilize banks as well as enhance habitat. Three priority restoration sites have been identified through … Continue reading Arcade Creek Park Preserve Restoration Project »

cbec has been contracted by the California Department of Fish & Wildlife to assess the feasibility for fish passage barrier construction at multiple sites along Sagehen Creek, CA. The proposed barriers will prevent non-native fishes from recolonizing Sagehen Creek following the eradication of non-natives and the reintroduction of Lahontan cutthroat trout, a state and federally listed species endemic to the Lahontan Basin. Fish passage barrier … Continue reading Feasibility Assessment for Barrier Construction along Sagehen Creek »

cbec is part of a team preparing the SMARA reclamation and restoration plan for the Urrutia Pond and associated river bank in the Lower American River Parkway. cbec was instrumental in providing support for the development and successful $5 million grant application to DWR FESSRO to support design and implementation of the river bank restoration piece of the project. Bank restoration along the Lower American … Continue reading Urrutia Pond and Bank Restoration Project »