Approve Agreement No. 2025-DMP-CSA6-01 in the amount of $450,000 between County Service Area No. 6 and the California Department of Water Resources for the removal of a 48-inch corrugated metal gravity flow pipe penetrating the levee; and adopt a resolution accepting funds. (No general fund impact) (Lindbo/Liebler)

The Knights Landing Levee System ("KLLS") is a part of the Sacramento River Flood Control Project ("SRFCP").  The SRFCP was authorized by the Flood Control Act of 1917 as Public Law 367 during the 64th Congress, and was later modified in 1928, 1937, and 1941.  The KLLS consists of three levee segments with a total length of approximately 15.19 miles.

County Service Area No. 6 ("CSA-6"), which was established in 1975 and is governed by the Yolo County Board of Supervisors, is the local maintaining agency responsible for the operations and maintenance ("O&M") of 5.97 miles in the middle of the KLLS.  CSA-6's responsibility runs along the Sacramento River's right bank from the Knights Landing Ridge Cut outfall gates downstream to the Fremont Weir.  The levee is part of Unit No. 127 of the SRFCP with O&M standards prescribed by the United States of Army Corps of Engineers.  All CSA-6 services are paid for by a percentage of property tax, and sometimes grant funding when available.  All CSA-6 activities are coordinated by the County's Department of Community Services, Natural Resources Division, with assistance from MBK Engineers, the County's contracted Levee District Engineer.

In April 2025, the California Department of Water Resources ("DWR") presented the Department of Community Services with a Deferred Maintenance Program Project Agreement to fund the removal of a 48-inch corrugated metal gravity flow pipe (identification no. DSIS 19516) that is penetrating through the CSA-6 levee near State Route 45.  The subject pipe has exceeded its useful life and is an eminent levee safety risk, necessitating its removal.  In addition to removing the pipe, the levee driveway and ramp access at State Route 45 will be widened to support an adequate turn radius for construction equipment to support the O&M of the levee embankment.  The agreement is in the amount of $450,000 (Attachment A) and covers all anticipated project costs (e.g., preparation of plans and specifications, coordination with permitting agencies, real estate coordination, construction and associated monitoring, construction management, and project management).  As stipulated in paragraph 7 of the agreement, DWR will pay one-hundred percent of all eligible project costs.
 

At this time, staff is requesting that the Board approve the subject agreement, delegate signing authority to the Director of Community Services, and adopt a resolution accepting the DWR funds (Attachment B).

Office of County Counsel
MBK Engineers - County's contracted Levee District Engineer
CA Department of Water Resources

Not applicable to this action. Staff will follow all applicable procurement policies when contracting for any work funded under the agreement.