Nacimiento Dam
Dam in San Luis Obispo County, California · Nacimiento River · forms Nacimiento Reservoir
Height
255 ft
78 m (NID height)
Length
1,630 ft
497 m
Completed
1956
Nacimiento Reservoir today
741.92 ft
7 days ▼ 0.30 ft
Normal storage
377,900 acre-ft
Reservoir level measured Oct 23, 2026, 8:30 AM PDT. Full level page →
Facts
- Purposes
- Hydroelectric; Irrigation; Recreation; Water Supply; Flood Risk Reduction
- Dam type
- Earth
- Structural height
- 255 ft
- Owner
- Monterey County Water Resources Agency (Local Government)
- Maximum storage
- 470,000 acre-ft
- Surface area
- 5,400 acres
- Hydraulic height
- 185 ft
- Drainage area
- 330 sq mi
- Spillway
- Controlled, 150 ft wide
- Army Corps district
- San Francisco District
- NID ID
- CA00812
Facts from the U.S. Army Corps of Engineers National Inventory of Dams, record updated Oct 6, 2026. Search NID ID CA00812 at nid.sec.usace.army.mil. Project website.