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 226250 of 1,962

Dam NameHeight (ft)YearHazardCondition
Thibodeaux

La Plata County

18SignificantSatisfactory
The Ranch

Adams County

271979SignificantSatisfactory
Theos Reservoir #1

Rio Blanco County

141973LowSatisfactory
Thatcher

Pueblo County

121971LowSatisfactory
Terry Lake

Larimer County

401890HighSatisfactory
Terrace

Conejos County

1831912HighFair
Terminal

La Plata County

781982HighFair
Terminal

Broomfield County

601995HighSatisfactory
Tepper No. 1

Jefferson County

221912LowNot Rated
Ten Mile Pond #3 Dam

Summit County

416HighNot Available
Teller No. 2

Boulder County

121904LowFair
Teller Lake No. 5 - West

Boulder County

91911LowNot Rated
Teller Lake No. 5 - East

Boulder County

121911LowNot Rated
Teller

Pueblo County

851908HighFair
Taylor Park Dam

Gunnison County

2061937HighNot Available
Taylor Draw

Rio Blanco County

811984HighSatisfactory
Taylor

La Plata County

191971LowNot Rated
Tatum Reservoir

Delta County

281959LowNot Rated
Tarryall Ranch Reservoir Dam

Park County

401977LowNot Rated
Tarryall

Park County

701929HighUnsatisfactory
Talbott Irrigation

Adams County

171912LowNot Rated
Tagert Lake

Pitkin County

91930LowNot Rated
Sylvan Lake

Eagle County

351947HighSatisfactory
Sylvan

Grand County

401910HighFair
Swede

Boulder County

151930LowSatisfactory
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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.