Approve a three-year agreement with MBK Engineers in the amount of $475,000 for professional engineering and consulting services to undertake hydrologic and hydraulic modeling and analysis that will describe and predict how the watershed and water course system in the Rolling Acres/West Plainfield area of Central Yolo County reacts to rainfall events and show the inundation of the study area in the 100-year event, and prepare a Feasibility Study Report to analyze alternatives for reducing flood risks in Central Yolo County. (No general fund impact) (Lindbo/Cormier)

Approve a three-year agreement with MBK Engineers in the amount of $475,000 (Att. A) for professional engineering and consulting services to undertake hydrologic and hydraulic modeling and analysis that will describe and predict how the watershed and water course system in the Rolling Acres/West Plainfield area of Central Yolo County reacts to rainfall events and show the inundation of the study area in the 100-year event, and prepare a Feasibility Study Report to analyze alternatives for reducing flood risks in Central Yolo County.

On November 9, 2023, the County was awarded $577,500 of Hazard Mitigation Grant Program (HMGP) funds through a Federal Emergency Management Agency (FEMA) Hazard Mitigation Assistance Grant by the California Office of Emergency Services (CalOES) for the Yolo County Rolling Acres/West Plainfield, Central Yolo Flood Mitigation Study (HMGP DR-4610-597-006). The purpose of the study is to advance previous hydrology and hydraulic efforts in the project area to develop a feasibility level hydraulic model to evaluate existing flood risk and potential flood risk reduction alternatives, as well as develop reasonable cost estimates and methodology to compare costs and benefits to one or more actions. The resulting Feasibility Report and Strategic Permitting Plan from the study will inform the County, Yolo County Flood Control and Water Conservation District (YCFCWCD), residents, landowners, farmers, and other business owners of the costs and benefits to pursue funding and implementation of flood risk-reduction actions for the project area.

Staff recommends that the Board approve the agreement, Attachment A, with MBK Engineers in the amount of $475,000 for professional engineering and consulting services to perform a hydrologic and hydraulic study for the valley floor that includes the Rolling Acres and West Plainfield communities.

Collaborations include District 2 staff, Procurement and Public Works Divisions, and Office of the County Counsel.