Idaho Dams

395 dams tracked by the National Inventory of Dams

Total Dams

395

High Hazard

97

24.6%

Poor / Unsatisfactory

42

Average Age

76 yrs

Hazard Classification

High97 (24.6%)
Significant141 (35.7%)
Low156 (39.5%)

Condition Assessment

Satisfactory76 (19.2%)
Fair248 (62.8%)
Poor / Unsatisfactory42 (10.6%)
Not Rated29 (7.3%)

Federal

33

State

14

Local

18

Private

325

Poor Condition Dams

All Dams in Idaho

Showing 76100 of 395

Dam NameHeight (ft)YearHazardCondition
Curlew Valley

Oneida County

411911SignificantPoor
Current Creek

Bannock County

491977SignificantSatisfactory
Daniels

Oneida County

961967HighFair
Davis

Valley County

341942SignificantFair
Deadwood Dam

Valley County

1651931HighNot Available
Deep Creek

Oneida County

911952HighFair
Deep Creek No 1

Twin Falls County

181911LowFair
Deep Creek No 2

Twin Falls County

421911SignificantFair
Deep Creek Upper

Oneida County

361906SignificantFair
Deer Creek

Clearwater County

482003SignificantFair
Deer Flat Lower Dam

Canyon County

491908HighNot Available
Deer Flat Middle

Canyon County

161911HighFair
Deer Flat Upper Dam

Canyon County

741908HighNot Available
Delamar Wmp-1

Owyhee County

422009LowSatisfactory
Devil Creek

Oneida County

841969HighFair
Dewey

Cassia County

301913SignificantSatisfactory
Deyo

Clearwater County

412011SignificantSatisfactory
Diamond A

Owyhee County

291931LowFair
Dog Creek

Gooding County

261958SignificantFair
Dry Creek Dike

Payette County

341976SignificantFair
Dry Creek Diversion

Payette County

351976LowFair
Dry Creek Main

Payette County

681976HighFair
Dworshak Dam

Clearwater County

7171973HighNot Available
Egbert Dam

Fremont County

151982LowFair
Egin Canal Diversion

Fremont County

71903LowSatisfactory
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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.