Exchequer Main Dam
Dam in Mariposa County, California · Merced River · forms Lake McClure
Height
490 ft
149 m (NID height)
Length
1,220 ft
372 m
Completed
1966
Lake McClure today
775.11 ft
7 days ▼ 2.48 ft
vs full pool
▼ 46.36 ft
Normal storage
1,024,600 acre-ft
Reservoir level measured Oct 23, 2026, 12:00 AM PDT. Full level page →
Facts
- Purposes
- Hydroelectric; Fire Protection, Stock, Or Small Fish Pond; Irrigation; Fish and Wildlife Pond; Recreation; Flood Risk Reduction
- Dam type
- Rockfill
- Owner
- Merced Irrigation District (Public Utility)
- Maximum storage
- 1,100,000 acre-ft
- Surface area
- 7,110 acres
- Hydraulic height
- 437 ft
- Drainage area
- 1,037 sq mi
- Spillway
- Controlled, 1,360 ft wide
- Army Corps district
- San Francisco District
- NID ID
- CA00240
Facts from the U.S. Army Corps of Engineers National Inventory of Dams, record updated Oct 6, 2026. Search NID ID CA00240 at nid.sec.usace.army.mil. Project website.