Wyoming Dams

1,490 dams tracked by the National Inventory of Dams

Total Dams

1,490

High Hazard

100

6.7%

Poor / Unsatisfactory

576

Average Age

62 yrs

Hazard Classification

High100 (6.7%)
Significant104 (7.0%)
Low1,283 (86.1%)

Condition Assessment

Satisfactory45 (3.0%)
Fair752 (50.5%)
Poor / Unsatisfactory576 (38.7%)
Not Rated117 (7.9%)

Federal

193

State

22

Local

82

Private

1,174

Tallest Dams

Poor Condition Dams

All Dams in Wyoming

Showing 676700 of 1,490

Dam NameHeight (ft)YearHazardCondition
Lox

Natrona County

351966LowPoor
Lower Sunshine

Park County

1621972HighFair
Lower Spicer

Natrona County

171951SignificantPoor
Lower Snake Draw (4th Enl.)

Sweetwater County

851998SignificantFair
Lower Morgan

Campbell County

882001SignificantNot Rated
Lower Hackett Dam

Natrona County

371967LowUnsatisfactory
Lower Goose Pond

Fremont County

8LowNot Rated
Lower Afton

Lincoln County

301942LowSatisfactory
Lowe No. 1

Sheridan County

251954LowPoor
Low

Carbon County

201946LowFair
Love Ex 11-14

Campbell County

351952LowFair
Louis

Crook County

261959LowPoor
Lost

Natrona County

291966LowFair
Loren Ramsey Fish

Platte County

291972LowPoor
Long Pond

Carbon County

191947LowFair
Longeley

Niobrara County

221972LowPoor
Lone Tree No. 2

Albany County

71909LowFair
Lone Tree

Albany County

351947LowPoor
Lone Tree

Crook County

171955LowPoor
Logan Jct. Detention Dam

Fremont County

231952LowUnsatisfactory
Loco Creek

Carbon County

482004LowFair
Little Willow

Goshen County

101906LowPoor
Little Sage Creek Reservoir

Carbon County

261969HighSatisfactory
Little Robber Det. Dam X

Carbon County

481953HighPoor
Little Red No. 2

Sheridan County

361966LowPoor
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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.