Tri-Dam Project

A partnership of the Oakdale and South San Joaquin Irrigation Districts

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Meetings

Monthly meetings of the Joint Board of Directors of the Tri-Dam Project and of the Commissioners of the Tri-Dam Power Authority are regularly held on the third Thursday of each month beginning at 9 am.

Meetings typically alternate between the offices of the Oakdale Irrigation District and the South San Joaquin Irrigation District. Each agenda specifies the meeting time and location. Agendas are published for the previous six months.

Note: agendas and minutes are published in Portable Document Format (PDF). Free reader software is available from Adobe and Foxit Software.

Meeting Locations
Oakdale Irrigation District
1205 East F Street (downtown Oakdale on SR 108/120)
Oakdale, CA 95361
(209) 847-0342

South San Joaquin Irrigation District
11011 East Highway 120 (on SR 120 east of SR 99)
Manteca, CA 95336
(209) 823-3101

Meetings /
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Agendas    

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Minutes    

About Tri-Dam

  • People
  • Meetings
  • Jobs
  • Surplus Sales
  • Open Solicitations
  • Annual Reports
  • Archive Documents
  • Historic Videos

Water Data

Data For 06/28/2022

Elevation (feet above sea level)

Donnells 4,912.17

Beardsley 3,384.50

Tulloch 507.95

Storage (acre feet)

Donnells 62,718

Beardsley 88,972

Tulloch 64,429

Outflow (cubic feet/sec)

Donnells 43

Beardsley 55

Tulloch 901


*Spilling

View historical data

News & Updates

Tulloch 2022 Internal Guidance Memo—Grandfathered Facilities

April 22, 2022 by Tri-Dam Project

Tulloch Spring 2022 Fill Schedule

March 10, 2022 by Tri-Dam Project

Road Conditions

Current road conditions to Beardsley and Donnells Reservoirs can be found on their respective pages.

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PO Box 1158 · Pinecrest, CA 95364-0158 · 209-965-3996