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 201225 of 1,490

Dam NameHeight (ft)YearHazardCondition
Tailings Pond No. 1

Sweetwater County

38LowNot Available
Tabasco

Johnson County

432006LowFair
T55nr76w31sese

Sheridan County

281960LowFair
T55nr76w30nese

Sheridan County

301960LowFair
T55nr76w29nwse

Sheridan County

321960LowFair
T55nr76w19sesw

Sheridan County

241960LowPoor
T55nr75w24swsw

Campbell County

302001LowFair
T55nr75w23swne

Campbell County

342002LowFair
T55nr75w22nwne

Campbell County

282002LowFair
T55nr75w11senw

Campbell County

292010LowFair
T42nr75w14swse

Campbell County

322001LowFair
Swope No. 2

Niobrara County

261953LowPoor
Swan Creek No. 7

Park County

221911LowPoor
Swan Creek No. 2

Park County

151908LowPoor
Swan

Laramie County

251907SignificantPoor
Suranyi Stock

Campbell County

291953LowPoor
Sunset

Sublette County

201966LowPoor
Sundby No. 2

Albany County

261971LowPoor
Sundby

Albany County

211945LowPoor
Summit

Carbon County

251954LowPoor
Sulphur Creek

Uinta County

851964HighFair
Sullivan No. 2

Natrona County

261992LowFair
Sucker Lake

Carbon County

131931LowPoor
Sturgeon No. 3

Albany County

301950LowPoor
Sturgeon No. 2

Albany County

251949LowPoor
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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.