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 10011025 of 2,990

Dam NameHeight (ft)YearHazardCondition
Night Fever School

Liberty County

151960LowNot Rated
Nies

Carter County

201960LowNot Rated
Nielsen

Rosebud County

311973LowNot Rated
Nickwall

McCone County

121953LowNot Rated
Nickles Worth

Chouteau County

121930LowNot Rated
Newton #1

Dawson County

201945LowNot Rated
Newman #1

Garfield County

201965LowNot Rated
Newlan Creek Dam

Meagher County

1311977HighPoor
Newhouse Reservoir

Blaine County

271930LowNot Rated
New Calve

Hill County

201970LowNot Rated
Nevada Creek Dam

Powell County

1051938HighSatisfactory
Neuman Dam

Cascade County

351956LowNot Rated
Neuman #2

Cascade County

251930LowNot Rated
Neufeld No 2

Valley County

101966LowNot Rated
Neufeld No 1

Valley County

281966LowNot Rated
Ness #1

Powder River County

221950LowNot Rated
Nerud Ranch #1

McCone County

201945LowNot Rated
Neptune

Teton County

161920LowNot Rated
N E Olsen #1

Garfield County

241938LowNot Rated
Nelsons

Valley County

151947LowNot Rated
Nelson Reservoir #2

McCone County

151952LowNot Rated
Nelson (Phillips)

Phillips County

271920LowNot Rated
Nelson Irrigation (Wheatland)

Wheatland County

251956LowNot Rated
Nelson Dike C

Phillips County

281915HighNot Available
Nelson #2

McCone County

151960LowNot Rated
PreviousPage 41 of 120Next

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