Reservoir A Dam
Dam in Nez Perce County, Idaho · Lindsay Creek · forms Mann Lake
Height
61 ft
19 m (NID height)
Length
2,200 ft
671 m
Completed
1907
Mann Lake today
1,788.28 ft
7 days ▼ 0.64 ft
Normal storage
3,300 acre-ft
Reservoir level measured Oct 21, 2026, 1:00 AM MDT. Full level page →
Facts
- Purposes
- Irrigation
- Dam type
- Earth
- Structural height
- 60 ft
- Owner
- BUREAU OF RECLAMATION (Federal)
- Maximum storage
- 3,665 acre-ft
- Surface area
- 155 acres
- Hydraulic height
- 58 ft
- Drainage area
- 1 sq mi
- Spillway
- Uncontrolled, 400 ft wide
- Army Corps district
- Seattle District
- Also known as
- Mann Lake
- NID ID
- ID00261
Facts from the U.S. Army Corps of Engineers National Inventory of Dams, record updated Oct 6, 2026. Search NID ID ID00261 at nid.sec.usace.army.mil. Project website.