Alhambra Creek Watershed Resources Inventory
Alhambra Creek Watershed GIS Data Set
Alhambra Creek Watershed Management Plan (April 2001)
To use the CD you will need a PC with MS Word and a CD-ROM drive. We recommend that you copy the 140 MB Word document to your hard drive for easier access. To obtain a CD, please contact Lisa Anich (925) 787-6746.
The Alhambra Watershed Management Plan Appendices is a comprehensive companion to the Plan with natural resource information (water, geology, soils, and wildlife biology) as well as watershed enhancement guides and resources. Unfortunately, the Appendices are not available in electronic form. However, the Appendices can be borrowed from Contra Costa RCD.
About the Alhambra Creek WatershedAlhambra Creek Watershed Map
(A large map of Alhambra Creek Watershed is available. The map includes aerial photos and shaded relief views of the watershed, 50 and 100-year floodplains, restoration projects, trails and open space. It can be obtained from Lisa Anich)
The Alhambra Creek Watershed covers approximately 16.5 square miles in north central Contra Costa County in Northern California and encompasses a portion of the City of Martinez. The land in the upper Alhambra Creek Watershed is used for parks and recreation, grazing, tree farming, and semi-rural living. The main stem of Alhambra Creek flows through open space, wildlife habitat, residential neighborhoods and then through the commercial area of downtown Martinez before it discharges into the Carquinez Straits through a tidal wetland. The valley floors along tributary creeks are mostly residential/agricultural areas. There are no reservoirs and no heavy industry in the watershed. An oil refinery is located just over the ridge to the east, and two railroads and a freeway cross the watershed.
In November 1995, the Environmental Alliance, a local non-profit organization, asked the Contra Costa Resource Conservation District for assistance in preparing a watershed management plan for Alhambra Creek. The two organizations began to build community support and seek funding to support a planning group.
The City of Martinez had experienced flooding on a yearly basis and had been searching for solutions to this problem for many years. The floods of 1996 galvanized the people of Alhambra Creek watershed. The town of Martinez experienced heavy damage and the upper watershed was damaged by severe erosion, flooding and silting. The community realized that to solve these problems the entire watershed system needed to be evaluated.
The stakeholders in the watershed were identified and asked to participate through the Coordinated Resource Management and Planning (CRMP) process, forming the Alhambra Creek Watershed Planning Group. A diverse group of stakeholders contributed to the plan:
From 1996 to April 2001, the planning group received grants from the California Department of Conservation, the Contra Costa Clean Water Program, and CALFED to fund the salary of the Watershed Coordinator and to pay publication and meeting costs. The watershed plan was published in April 2001. At that point the group changed its name to the Alhambra Watershed Action Group and began work to implement the plan's goals.
In 2004, the Alhambra Watershed Action Group evolved into the Alhambra Watershed Council with the mission to continue implementation of the Watershed Plan, act as a community resource, and provide a forum for new ideas and projects that will promote the health and vitality of the entire watershed community.
Goals Presented in the Alhambra Creek Watershed Management Plan
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