Workgroups & Teams

SJRRP Restoration Daily Flow Hydrograph Query

Data Courtesy of CDEC and San Joaquin River Restoration Program (SJRRP)
SJRRP Restoration Queries

Select Output Format

Select Restoration Year, Month

Select Flow Type

Select Stations


Multiple selections for stations allowed.
Query Notes

A network of flow gauging stations is operated by various agencies. These stations typically measure the river stage (i.e. the depth of the river at a particular cross-section) and convert that to a flow (typically expressed as cubic feet per second or “cfs”). Flow gauging stations can be accurate to +/- 5%, though there are many possible reasons why flow measurements may be less accurate at times. Restoration Flows released from Friant Dam may take up to 13 days to reach the Vernalis gauging station in the Delta. Not all San Joaquin River flows are necessarily Restoration Flows (here those non-Restoration Flows are labeled as “other water”), and in some cases Restoration Flows may not be present in sections of the San Joaquin River.

Sample output graph