Colorado Dams

1,962 dams tracked by the National Inventory of Dams

Total Dams

1,962

High Hazard

451

23%

Poor / Unsatisfactory

119

Average Age

84 yrs

Hazard Classification

High451 (23.0%)
Significant294 (15.0%)
Low1,217 (62.0%)

Condition Assessment

Satisfactory691 (35.2%)
Fair533 (27.2%)
Poor / Unsatisfactory119 (6.1%)
Not Rated619 (31.5%)

Federal

141

State

80

Local

416

Private

1,221

Poor Condition Dams

All Dams in Colorado

Showing 5175 of 691

Dam NameHeight (ft)YearHazardCondition
Big Sandy Creek Watershed N-21

Elbert County

321959LowSatisfactory
Big Sandy Creek Watershed S-22

Elbert County

361959LowSatisfactory
Big Tooth

El Paso County

1021927HighSatisfactory
Bills Ranch Lake

Summit County

81933SignificantSatisfactory
Binco

Grand County

451913LowSatisfactory
Black Hollow

Weld County

421918HighSatisfactory
Black Lake #1

Eagle County

731939HighSatisfactory
Black Lake #2

Eagle County

301957SignificantSatisfactory
Blackmer #1

Arapahoe County

121936LowSatisfactory
B.L. Swift

Weld County

121890LowSatisfactory
Blunn

Jefferson County

1251979HighSatisfactory
Bolen, Anderson, Jacobs

Mesa County

191969LowSatisfactory
Bonnie Meade

Pueblo County

201948LowSatisfactory
Boomerang

Weld County

301990LowSatisfactory
Bosley Wash Detention Basin

Mesa County

262019HighSatisfactory
Boulder - North

Boulder County

511955HighSatisfactory
Boulder - South

Boulder County

591955HighSatisfactory
Bowles #1

Jefferson County

251973SignificantSatisfactory
Box Elder #2

Larimer County

131885LowSatisfactory
Box Springs #2

Crowley County

151899LowSatisfactory
Boyd Lake

Larimer County

401900HighSatisfactory
Branith #1

Boulder County

16LowSatisfactory
Breidenbach

Logan County

161941LowSatisfactory
Brett Gray

Lincoln County

291939LowSatisfactory
Bristlecone

El Paso County

881986SignificantSatisfactory
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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.