Windspeed
Humidity
Buchanan Dam, also known as H.V. Eastman Lake, is a rockfill dam located in Chowchilla, California, along the Chowchilla River. Completed in 1975 by the US Army Corps of Engineers, the primary purpose of the dam is flood risk reduction, with additional benefits including hydroelectric power generation, irrigation, and recreation. Standing at a structural height of 218 feet and with a storage capacity of 185,256 acre-feet, Buchanan Dam plays a crucial role in managing water levels and mitigating flood risks in the region.
With a hazard potential rated as high, the dam is regularly inspected and maintained by the US Army Corps of Engineers to ensure its structural integrity and safety. Risk management measures include continual monitoring, prioritizing activities to address risks, and engaging with local emergency managers and the public to raise awareness and readiness for potential dam-related emergencies. The dam's emergency action plan is regularly updated, and maintenance and repairs are conducted as needed to keep the dam functioning properly. Despite the risks associated with severe weather events and potential dam releases, Buchanan Dam plays a vital role in managing water resources and protecting downstream communities from flooding.
Storage 24hr Change | -1.09% |
Percent of Normal | 236% |
Minimum |
9,063 acre-ft
2022-11-29 |
Maximum |
172,105 acre-ft
2024-07-08 |
Average | 41,281 acre-ft |
Dam_Height | 179 |
Hydraulic_Height | 192 |
Drainage_Area | 235 |
Year_Completed | 1975 |
Nid_Storage | 150000 |
Structural_Height | 218 |
Primary_Dam_Type | Rockfill |
Foundations | Rock |
Surface_Area | 1780 |
Hazard_Potential | High |
River_Or_Stream | CHOWCHILLA RIVER |
Dam_Length | 1746 |
Nid_Height | 218 |
Discharge | Stage | Elevation | |
ELEANOR C NR HETCH HETCHY CA
2024-12-19T02:00:00.000-08:00 |
8cfs | 9.6ft | 4531ft |
LK ELEANOR DIV TO CHERRY LAKE NR HETCH HETCHY CA
2018-03-15T01:15:00.000-07:00 |
1cfs | ft | 4666ft |
TUOLUMNE R A GRAND CYN OF TUOLUMNE AB HETCH HETCHY
2024-12-21T00:15:00.000-08:00 |
54cfs | 7.59ft | 3831ft |
BLACK C NR COPPEROPOLIS CA
2024-12-19T01:45:00.000-08:00 |
1cfs | 2.32ft | 752ft |
CHERRY C BL VALLEY DAM NR HETCH HETCHY CA
2024-12-19T02:00:00.000-08:00 |
7cfs | 5.14ft | 4355ft |
TUOLUMNE R NR HETCH HETCHY CA
2024-12-19T02:00:00.000-08:00 |
48cfs | 2.94ft | 3498ft |
TURLOCK CN NR LA GRANGE CA
2024-12-19T02:00:00.000-08:00 |
36cfs | ft | 299ft |