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 76100 of 2,606

Dam NameHeight (ft)YearHazardCondition
Whitetail Detention Dam

Valley County

291965LowPoor
Whitetail (Daniels)

Daniels County

211930LowNot Rated
Whitetail (Custer)

Custer County

201952LowNot Rated
Whitetail

Rosebud County

181961LowNot Rated
White Sulphur Springs Sewage Disposal

Meagher County

81960LowNot Rated
White Silver

Silver Bow County

151950LowNot Rated
Whitefish Sewage Lagoon

Flathead County

91962LowNot Rated
White Elk Dam #2

Wheatland County

81927LowNot Rated
White Elk

Wibaux County

201955LowNot Rated
White Bear Reservoir

Blaine County

121960LowNot Rated
Whisker Dam

Fergus County

241954LowNot Rated
Wheeler #1

Rosebud County

201952LowNot Rated
Wheatley Farms INC #1

McCone County

301949LowNot Rated
Wheatley Farms #2

McCone County

281947LowNot Rated
Wheat Crop

Wheatland County

271938LowNot Rated
Whatshisname

Valley County

161909LowNot Rated
Whatshername

Valley County

261943LowNot Rated
Whaley #13

Rosebud County

201974LowNot Rated
Whaley #11 Dam

Rosebud County

26LowPoor
Whaley #10

Rosebud County

181945LowNot Rated
Wet Mutt

Fergus County

201965LowNot Rated
Westling

Park County

301954LowNot Rated
Westgard

McCone County

121947LowNot Rated
Westermark

Toole County

451964LowNot Rated
Weson

Valley County

221951LowNot 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.