Willow Creek Bor Mt Dam
Dam in Lewis and Clark County, Montana · Willow Creek · forms Willow Creek Reservoir
Height
93 ft
28 m (NID height)
Length
650 ft
198 m
Completed
1911
Willow Creek Reservoir today
4,129.72 ft
7 days ▲ 0.99 ft
Normal storage
32,300 acre-ft
Reservoir level measured Oct 21, 2026, 12:00 AM MDT. Full level page →
Facts
- Purposes
- Irrigation
- Dam type
- Earth
- Structural height
- 93 ft
- Owner
- BUREAU OF RECLAMATION (Federal)
- Maximum storage
- 39,800 acre-ft
- Surface area
- 1,470 acres
- Hydraulic height
- 64 ft
- Drainage area
- 118 sq mi
- Spillway
- None
- Army Corps district
- Walla Walla District
- Also known as
- Willow Creek Reservoir Mt
- NID ID
- MT00577
Facts from the U.S. Army Corps of Engineers National Inventory of Dams, record updated Oct 22, 2025. Search NID ID MT00577 at nid.sec.usace.army.mil. Project website.
Other dams at Willow Creek Reservoir
- Willow Creek Bor Mt-Dike 5
- Willow Creek Bor Mt-Dike 4
- Willow Creek Bor Mt-Dike 2
- Willow Creek Bor Mt-Dike 3