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 801825 of 2,990

Dam NameHeight (ft)YearHazardCondition
Dye #1

Carter County

241918SignificantNot Rated
Dye #2

Carter County

201959LowNot Rated
Dyncan #2

Valley County

251964LowNot Rated
Eagle Eyes

Chouteau County

241946LowNot Rated
Eagle Land #1

Big Horn County

301940LowNot Rated
Earl Krietel #3

Carter County

121959LowNot Rated
Earl Krietel #4

Carter County

301956LowNot Rated
Early Bird

Phillips County

101960LowNot Rated
East Axolotl Lake

Madison County

101945LowNot Rated
East Blacktail

Rosebud County

251952SignificantNot Rated
East Boulder Tailings Dam

Sweet Grass County

HighSatisfactory
East Dam

Deer Lodge County

80SignificantSatisfactory
East Fork

Hill County

762007HighSatisfactory
East Fork Dam

Fergus County

931974HighSatisfactory
East Fork Reservoir

Rosebud County

111945LowNot Rated
Easy Retention Dam

Musselshell County

341972LowNot Rated
E B Ranch #1

Powder River County

301956LowNot Rated
Echo Reservoir

Liberty County

181950LowNot Rated
Eddie #1

Valley County

151969LowNot Rated
Eddie #2

Valley County

201950LowNot Rated
Eddie #6

Valley County

71970LowNot Rated
Ed Mcintyre

Toole County

151889LowNot Rated
Ed Rath #1

Carter County

151940LowNot Rated
Ed Styer #2

Fergus County

201963LowNot Rated
Ed Styer #3

Fergus County

301958LowNot Rated
PreviousPage 33 of 120Next

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