The dam was built in the early 20th century to provide a reliable source of water for Santa Barbara and surrounding areas. The hydrology of the area is heavily influenced by the Mediterranean climate, which results in a wet winter season and dry summers. Snowpack in the nearby mountains is a significant contributor to the river's flow. The Santa Ynez River provides water for agricultural uses, including vineyards and orchards, as well as recreational activities such as fishing, swimming, and boating. The dam also serves as a source of hydropower for the region. Despite challenges such as drought and changing land use patterns, the Santa Ynez River remains a vital resource for the people of Santa Barbara County.
| Lake Or Reservoir Water Surface Elevation Above Ngvd 1929, Ft 24hr Change | 0.01% |
| Percent of Normal | 100% |
| Minimum |
1,365.43 ft
2014-02-26 |
| Maximum |
1,401.85 ft
2023-01-10 |
| Average | 1,381 ft |
| Dam_Height | 169 |
| Hydraulic_Height | 167 |
| Drainage_Area | 214 |
| Year_Completed | 1920 |
| Nid_Storage | 9998 |
| River_Or_Stream | Santa Ynez Rv |
| Surface_Area | 335 |
| Hazard_Potential | High |
| Dam_Length | 600 |
| Primary_Dam_Type | Arch |
| Nid_Height | 169 |
| Location | Reservations | Toilets |
|---|---|---|
Upper Oso
|
||
Upper Oso Campground
|
||
P-Bar Flat Campground
|
||
Sage Hill Group Campground
|
||
Middle Santa Ynez Campground
|
||
Middle Santa Ynez
|