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 376400 of 1,217

Dam NameHeight (ft)YearHazardCondition
Nienhuser

Lincoln County

141924LowSatisfactory
Nichols

El Paso County

571929LowNot Rated
Newton Gulch

Routt County

411907LowSatisfactory
New Cache Agricultural Pond

Weld County

102016LowNot Rated
Nelson

Douglas County

301953LowNot Rated
Neff Lake

Weld County

10LowNot Rated
Needle Creek

Saguache County

901961LowNot Rated
Native Lake

Archuleta County

261970LowSatisfactory
Nast Reservoir

Pitkin County

101966LowNot Rated
Nakomis Lake

Larimer County

181920LowSatisfactory
Myron Isabel

Weld County

27LowSatisfactory
Muskrat Dam

Jackson County

211985LowFair
Murray

Huerfano County

271893LowNot Rated
Murray

Clear Creek County

111904LowSatisfactory
Munger #2

Weld County

111902LowNot Rated
Munger #1

Weld County

101902LowNot Rated
Mulligan

Weld County

101878LowFair
Muleshoe

La Plata County

241996LowNot Rated
Muddy Pass Lake

Jackson County

221969LowNot Rated
Muddy Creek

Grand County

381954LowFair
Mower

Jefferson County

111885LowNot Rated
Mount Gunnison #1-Fw 1

Gunnison County

261982LowSatisfactory
Mountain Supply # 9

Larimer County

241907LowFair
Mountain Supply # 7

Larimer County

141908LowSatisfactory
Mountain Supply # 6

Larimer County

81910LowNot Rated
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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.