Santa Cruz, CA
831.421.9291
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  Portland, OR
503.227.5979
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uc canyonClient: Sierra Nevada Alliance

The Upper Carson River has been identified as a Category I priority watershed for water quality improvement by the California Unified Watershed Assessment. In response, the Sierra Nevada Alliance, on behalf of the Alpine Watershed Group, initiated preparation of a Stream Corridor Condition Assessment for the Upper Carson River Watershed with funding from the California State Water Resources Control Board. The assessment included a fluvial geomorphic assessment, a survey of conditions in the riparian and floodplain zone, a list of prioritized restoration projects, and a recommended list of management measures. Waterways staff acted as the project team hydrologists and geomorphologists and were the primary project team member in evaluating riparian health and providing restoration project recommendations. The assessment included approximately 66 miles of stream channel within the West Fork Carson River, East Fork Carson River, Wolf Creek, and Markleeville/Hot Springs Creek.

slr-weirClient: County of Santa Cruz Department of Environmental Health

The objectives of this project were to develop a comprehensive plan that identified, through focused research and analysis of existing data, the limiting factors affecting habitat and populations conditions on the San Lorenzo River for steelhead trout and coho salmon. The San Lorenzo River is noted as having the largest run of steelhead south of San Francisco Bay and historically supported populations of coho.

kunzler1Client: Granite Construction Company

Waterways staff assisted Granite Construction Company with planning, design, and permitting of a proposed off-channel gravel extraction project on the Kunzler Ranch property, located at the confluence of Ackerman Creek and the Russian River, in the Ukiah Valley of Mendocino County. Waterways has conducted hydrologic, hydraulic, and geomorphic analyses to assess flooding impacts, habitat development potential, and channel stability at the proposed project site, under both project-life and reclamation phases.

PostConstruction web

Client: Monument Soil and Water Conservation District

Cottonwood Creek is a major tributary to the North Fork John Day River and has been identified as critical habitat for Middle Columbia River steelhead. The lower four miles of the creek enters a broad valley, providing opportunities for agriculture that relies on the water of Cottonwood Creek for production. There are currently 12 diversion sites along lower Cottonwood Creek, referred to as points of diversion (POD’s). Many of these diversions result in fish passage barriers during the low flow season. The Monument Soil and Water Conservation district requested Waterways assistance in the assessment of channel stability and fish passage for all 12 PODs and designs for three of the known fish passage barriers.

 

downstream end of culvert 271Client: Scappoose Bay Watershed Council

Waterways was retained by the Scappoose Bay Watershed Council to develop bid-ready engineering drawings for six culverts on Salmon and Cox Creeks in the Scappoose Bay Watershed that were identified as high priority fish passage barriers during an assessment conducted in 2001.  The design approach consisted of replacing each culvert with a bottomless arch culvert using streambed simulation criteria established by NOAA Fisheries and Oregon Department of Fish and Wildlife. 

Copy of P1010305Client: Sonoma County Public Works

Waterways assisted the Sonoma County Department of Transportation and Public Works with planning and design services to address two fish passage barriers associated with stream crossings on County roads. The sites consisted of two large concrete box culverts that were limiting fish passage to high quality spawning and rearing habitat located upstream. At each of these culverts, the natural streambed had incised to at least 4 feet below the culvert outlet, resulting in a partial barrier to migrating salmonids. The design solution included structural retrofit of the culverts using concrete baffles, and the construction of a roughened channel to aggrade the stream profile sufficiently to eliminate the passage barrier. Work consisted of topographic mapping, hydrologic and hydraulic modeling, and preparation of preliminary and final design drawings and specifications.

ds from courthouse ped bridge 2010 webClient: City of Santa Cruz- Public Works Department

Waterways performs annual cross section surveys at seventeen permanent monitoring sections established along the San Lorenzo River, from Highway 1 to the river mouth.   This project assists the City of Santa Cruz in meeting flood protection requirements and habitat restoration goals by quantifying changes in channel elevation, form, and vegetation cover.  The monitoring data is presented in an annual report discussing the geomorphic and hydrologic trends, and providing adaptive management recommendations to the City’s riparian vegetation and sediment management operations.

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Project Menu

Central California Project Portfolio
Aptos Creek Watershed Assessment and Enhancement Plan
Attiyeh Ranch Conservation Easement
Camp Pico Blanco Fish Ladder and Dam Retrofit
City of Santa Cruz Watershed Management Plan
Corralitos Creek Bank Stabilization
Eureka Canyon Bridge Replacement and Fish Passage Improvements @ Koinonia Conference Center
Fall Creek Fish Ladder
Geyer Quarry Restoration Plan
Mitchell Creek Dam Removals & Fish Passage Improvements
North Monterey County High School Nature Area Design Project
Pajaro River Care Project
Potrero Hills Wetland Mitigation
Quail Hollow Bridge Replacement and Channel Restoration
Salmonid Enhancment Plan for the San Lorenzo River
San Lorenzo River Monitoring
Soquel Creek Floodplain Restoration
Sycamore Creek Bank Stabilization
Valencia Creek Fish Ladder
Watsonville Sloughs Landfill Site Restoration near Ramsay Park
Watsonville Sloughs Manabe Property Wetland Restoration
Watsonville Trails Master Plan
West Valley College Stream and Wetland Enhancement and Riparian Trail Plan
Zayante Area Sediment Source Reduction Plan
Northern Cal-Nevada Project Portfolio
Big Meadow Creek Watershed Assessment
Blackwood Creek Stream Restoration
Cold Creek/ High Meadow Ecosystem Restoration
Coldstream Floodplain Enhancement Project
Edgewood Creek Watershed Assessment, Enhancement Plan, & Restoration
Hat Creek Restoration
Hope Valley Meadow Restoration
Independence Lake Log Cribwall and Fish Barrier Design
Kunzler Ranch Gravel Extraction
Perazzo Meadows Geomorphic Assessment
Russian River Projects
Sonoma County Fish Passage Projects
St. Helena Comprehensive Flood Protection Plan
Trout Creek Restoration
Upper Carson River Watershed Assessment
Pacific Northwest Project Portfolio
Batwater Station Floodplain Enhancement Project
Clackamas County Water Environment Services Action Planning & Geomorphic Monitoring
Dairy Creek- Sturgeon Lake Restoration
East Valley Mine Wetland Mitigation Project
Fox Creek Restoration Plan
Gales Creek Restoration Planning
Gooseneck Creek Restoration
Half Mile Lane Mitigation Bank
Hillsboro Landfill Wetlands Outfall Channel and No-Rise Documentation
Jackson Creek Restoration Plan
Lower Clatskanie Floodplain Restoration
Lower Cottonwood Creek Points of Diversion Modification Projects
Mill Creek Side Channel Restoration
Milton Creek Large Wood Enhancement Project
Murtaugh Creek Fish Passage
North Fork Deep Creek Habitat Enhancement Project
Rinearson Creek Natural Area Restoration
Salmon and Cox Creek Fish Barrier Improvement Project
Scappoose Bay Restoration Plan
South Fork Necanicum Fish Passage Improvement Project
Southern California Project Portfolio
Arroyo Grande Creek Channel Flood Mitigation
Circle G Ranch Fish Passage Improvement
Gobernador Creek Bridge Replacement and Fish Passage Improvements - Widdoes Residence
Morro Fish Review
Pismo Creek Fish Passage Project
Rodriguez Fish Passage Project
Tally Ho Channel Assessment