Montana Dams

2,990 dams tracked by the National Inventory of Dams

Total Dams

2,990

High Hazard

188

6.3%

Poor / Unsatisfactory

132

Average Age

74 yrs

Hazard Classification

High188 (6.3%)
Significant193 (6.5%)
Low2,606 (87.2%)

Condition Assessment

Satisfactory113 (3.8%)
Fair44 (1.5%)
Poor / Unsatisfactory132 (4.4%)
Not Rated2,701 (90.3%)

Federal

278

State

151

Local

84

Private

2,466

All Dams in Montana

Showing 125 of 2,606

Dam NameHeight (ft)YearHazardCondition
Zinger #1

Richland County

161960LowNot Rated
Zimmerman Retention Dam #1

Petroleum County

192003LowNot Rated
Zempel #3

Rosebud County

201940LowNot Rated
Zempel

Rosebud County

221936LowNot Rated
Zelzo

Carter County

151920LowNot Rated
Z Cake

Rosebud County

151950LowNot Rated
Zanzi Pal

Hill County

251930LowNot Rated
Yunck

Glacier County

201950LowNot Rated
Yuletide

Blaine County

201930LowNot Rated
Young Sun

Teton County

151970LowNot Rated
Young Clemons

Teton County

181950LowNot Rated
Young #1

Custer County

261952LowNot Rated
Yellow Sarpy

Treasure County

251965LowNot Rated
Yellow Minni Stone

Treasure County

201965LowNot Rated
Yellow Haired Custer

Yellowstone County

151967LowNot Rated
Yastremski Dam

Park County

101950LowNot Rated
Yantighem

Chouteau County

141961LowNot Rated
Wyrick

Fallon County

221984LowNot Rated
Wyotana Ranch #5

Carter County

151962LowNot Rated
Wyotana Ranch #4

Carter County

181962LowNot Rated
Wyant Lake

Ravalli County

181909LowNot Rated
Workman #1

Rosebud County

181948LowNot Rated
Wood (Toole)

Toole County

191963LowNot Rated
Wood Lake Dam

Lewis and Clark County

131955LowNot Rated
Woodhouse-Lattin

Teton County

341963LowNot Rated
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Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.