Public Works

Drainage problems in South Yuba County have been documented in numerous reports since 1962.  Existing problems along with new development and the potential to increase rainwater runoff instigated the need for a Drainage Master Plan for the area. 

In 1981 a South Yuba Drainage Master Plan (SYDMP) was released and included an excellent history of drainage in southwest Yuba County, as well as proposed solutions to help alleviate interior drainage flooding caused by inadequate infrastructure.  The history was updated in the Revised SYDMP of 1992.

To view the 1992 revised SYDMP, download the following document:  PDF

Since the 1992 SYDMP, there has been a marked rise of man-made changes and improvements, both in this study area and to the west in the Olivehurst/RD784/Plumas Lake areas.  Some of the more important drainage infrastructure changes now in place were ones suggested in the 1992 SYDMP.

Updated Study

Revisions to the SYDMP have been prepared to update previous studies, to assess the impacts of future development within the East Linda area, and to delineate alternative drainage improvements within the study area.

All drainage covered in this study eventually conveys by gravity to Reeds Creek and from there by gravity to the Western Pacific Interceptor Canal (WPIC) which conveys to the Bear River at the southern boundary of Yuba County.  The total hydrologic area represented is 7430 acres.

We are posting this document for your information.  This update to the SYDMP was presented to the Board of Supervisors and adopted on June 12, 2012.

Due to it's size, we are not only posting the complete document, but the same document broken into 5 parts for easier downloading.