Monticello Dam
Dam in Napa County, California · Putah Creek · forms Lake Berryessa
Height
304 ft
93 m (NID height)
Length
1,023 ft
312 m
Completed
1957
Lake Berryessa today
427.74 ft
7 days –
Normal storage
1,602,278 acre-ft
Reservoir level measured Oct 18, 2026, 1:00 AM PDT. Full level page →
Facts
- Purposes
- Irrigation; Water Supply
- Dam type
- Concrete
- Structural height
- 304 ft
- Owner
- BUREAU OF RECLAMATION (Federal)
- Maximum storage
- 1,902,086 acre-ft
- Surface area
- 20,240 acres
- Hydraulic height
- 273 ft
- Drainage area
- 567 sq mi
- Spillway
- Uncontrolled, 67 ft wide
- Army Corps district
- San Francisco District
- Also known as
- Lake Berryessa
- NID ID
- CA10170
Facts from the U.S. Army Corps of Engineers National Inventory of Dams, record updated Nov 21, 2024. Search NID ID CA10170 at nid.sec.usace.army.mil. Project website.