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 19261950 of 2,606

Dam NameHeight (ft)YearHazardCondition
Dry Hollow

Madison County

251999LowNot Rated
Dry Fork Fairhaven #2

Cascade County

151943LowNot Rated
Dry Fork Fairhaven #1

Cascade County

81947LowNot Rated
Dry Fields

Beaverhead County

201965LowNot Rated
Dry Coulee Dam

Big Horn County

301974LowNot Rated
Drury

Daniels County

121950LowNot Rated
Drum No 2

Carbon County

221950LowNot Rated
Dr Lee #2

Yellowstone County

201965LowNot Rated
Dr Lee #1

Yellowstone County

201979LowNot Rated
Dreyer Brothers INCorporated #2

McCone County

251975LowNot Rated
Dreyer Brothers INCorporated #1

McCone County

251964LowNot Rated
Dreyer #2

McCone County

201964LowNot Rated
Dreyer

McCone County

251944LowNot Rated
Drew #1

Garfield County

201966LowNot Rated
Dreary

Blaine County

121950LowNot Rated
Dramamine

Judith Basin County

451967LowNot Rated
Dragons Head

Liberty County

121975LowNot Rated
Drag Creek Retention Dam

Petroleum County

351964LowFair
Draco

Judith Basin County

351950LowNot Rated
Drabbels

Phillips County

151960LowNot Rated
Downy

Dawson County

121957LowNot Rated
Downs, Jack

Dawson County

231938LowNot Rated
Downs #1

Rosebud County

141946LowNot Rated
Dovetail #1

Petroleum County

201961LowNot Rated
Dover D Dam #1

Yellowstone County

151977LowNot 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.