PROJECTS: FLOOD CONTROL

San Joaquin County Department of Public Works

Corral Hollow Off Stream Detention Feasibility Study

Team Members:          Joe Domenichelli, Tony Barela and Sara Miller

Role:                           Project Manager, Project Engineer, Hydrology

Project Description:  Providing hydrology and hydraulic studies, water quality analysis, preliminary designs and cost analysis for alternatives to use aggregate quarries for off-stream detention basins along Corral Hollow creek in southern San Joaquin County.  The feasibility report will be used to determine benefit/cost relationships and obtain funding for the project.

Granite Quarry Site 1

County of Colusa

Powell Slough Levee and Channel Improvements

Team Members:           Joe Domenichelli, Tony Barela

Role:                            Project Manager/Hydraulic Designer, Project  Engineer/Modeler

Project Description:  Provided hydraulic analyses, floodplain mapping and levee improvement pre-design for the western portion of Colusa along the Colusa Basin Main Drain channel.  Improvements included levee construction, channel widening at Highway 20, and energy dissipation of channel flow into a sensitive wildlife refuge.  Portions of the levee are complete and when the remaining improvements are made a LOMR will be issued to FEMA.

                                                                                                                  Colusa Drain at Hwy 20
Utilized HEC-2 and HEC-RAS to develop a working model of the floodplain west of the city of

Colusa. Water elevations and velocities of the existing and proposed conditions were evaluated for project completeness. The Colusa basin drain being the main factor, stage data was collected from two river stations and utilized in the flood frequency analysis.

Other Pump Station Clients Include:

-            Town of Yountville

-            Sacramento County

-            San Joaquin Area Flood Control Agency (SJAFCA)