Lopez Dam
Dam in Los Angeles County, California · Pacoima Wash · forms Lopez Reservoir
Height
50 ft
15 m (NID height)
Length
1,300 ft
396 m
Completed
1954
Lopez Reservoir today
1,254.00 ft
7 days –
Reservoir level measured Oct 19, 2026, 6:00 AM PDT. Full level page →
Facts
- Purposes
- Debris Control; Flood Risk Reduction
- Dam type
- Earth
- Owner
- USACE - Los Angeles District (Federal)
- Maximum storage
- 209 acre-ft
- Surface area
- 1 acres
- Hydraulic height
- 44 ft
- Drainage area
- 34 sq mi
- Spillway
- Uncontrolled, 122 ft wide
- Army Corps district
- Los Angeles District
- Also known as
- Lopez Reservoir
- NID ID
- CA10020
Facts from the U.S. Army Corps of Engineers National Inventory of Dams, record updated Oct 8, 2026. Search NID ID CA10020 at nid.sec.usace.army.mil. Project website.