43Total Dams
6High Hazard
1Significant
Dam Safety in Platte County, Wyoming
Platte County has 43 dams tracked in the National Inventory of Dams. Of these, 6 are classified as high hazard — meaning failure would probably cause loss of human life. Another 1 carry a significant hazard classification. Currently, 14 dams have a condition assessment of poor or unsatisfactory.
The average dam in Platte County is 67 years old. The most common purpose is irrigation. The tallest dam is Glendo Dam at 196 ft.
Explore more: Oldest dams in Wyoming · Tallest dams · High risk dams · Largest reservoirs
| Dam | Hazard | Condition | Height (ft) | Purpose | Year |
|---|---|---|---|---|---|
| Glendo Dam | High | Not assessed | 196 | Flood Risk Reduction | 1958 |
| Guernsey Dam | High | Not assessed | 137 | Hydroelectric | 1927 |
| Grayrocks | High | Fair | 95 | Other | 1980 |
| Glendo Dike 3 | High | Not assessed | 94 | Flood Risk Reduction | 1959 |
| Glendo Dike 2 | High | Not assessed | 63 | Flood Risk Reduction | 1959 |
| Glendo Dike 1 | High | Not assessed | 50 | Flood Risk Reduction | 1959 |
| Wyoming Development Company No. 1 | Significant | Fair | 49 | Irrigation | 1960 |
| Mbpp Storm Runoff Retention | Low | Fair | 40 | Other | 1976 |
| Hugh Mcdonald | Low | Poor | 37 | Irrigation | 1949 |
| Twiford | Low | Poor | 35 | Irrigation | 1944 |
| Hal No. 2 | Low | Poor | 35 | Flood Risk Reduction | 1968 |
| Ken No. 1 | Low | Fair | 35 | Flood Risk Reduction | 1968 |
| Bagley Brothers | Low | Not assessed | 35 | Irrigation | 1941 |
| Miller No. 1 | Low | Poor | 34 | Irrigation | 1949 |
| Key Bar Water Hole #1 | Low | Fair | 34 | Irrigation | 2011 |
| O Bar O No. 3 | Low | Fair | 33 | Irrigation | 1970 |
| Morrison No. 2 | Low | Poor | 32 | Irrigation | 1975 |
| Pump | Low | Fair | 30 | Flood Risk Reduction | 1968 |
| Spring Creek No. 1 | Low | Poor | 30 | Irrigation | 1954 |
| Richard No. 1 | Low | Not assessed | 30 | Irrigation | 1964 |
| Utter | Low | Fair | 30 | Fish and Wildlife Pond | 1972 |
| North Laramie Land Company No. 1 | Low | Poor | 30 | Irrigation | 1912 |
| Mbpp Raw Water Source | Low | Fair | 30 | Other | 1978 |
| Ryff and Klassert | Low | Not assessed | 29 | Irrigation | 1914 |
| Clay No. 1 | Low | Fair | 29 | Irrigation | 1942 |
| Miller No. 2 | Low | Poor | 29 | Irrigation | 1951 |
| Loren Ramsey Fish | Low | Poor | 29 | Fish and Wildlife Pond | 1972 |
| Hal | Low | Fair | 28 | Flood Risk Reduction | 1968 |
| Eshom | Low | Poor | 28 | Irrigation | 1947 |
| Phelps | Low | Poor | 28 | Irrigation | 1911 |
| Double L | Low | Not assessed | 26 | Irrigation | 1965 |
| Morrison Fish | Low | Poor | 26 | Fish and Wildlife Pond | 1973 |
| Miller | Low | Fair | 25 | Irrigation | 1967 |
| Chug Springs | Low | Fair | 25 | Flood Risk Reduction | 1967 |
| Mbpp Ash Pond | Low | Satisfactory | 25 | Tailings | 1984 |
| Reese | Low | Fair | 23 | Fish and Wildlife Pond | 2007 |
| Wheatland Wastewater Lagoon 1 | Low | Fair | 20 | Other | 2009 |
| Grant No. 2 | Low | Not assessed | 20 | Irrigation | 1911 |
| Mbpp Emergency Holding Pond | Low | Satisfactory | 20 | Other | 1980 |
| Mertz No. 2 | Low | Poor | 19 | Irrigation | 1905 |
| Wheatland Waste Water Lagoon 2 | Low | Fair | 18 | Other | 2009 |
| Rock Lake | Low | Fair | 15 | Irrigation | 1930 |
| J. N. Mertz | Low | Poor | 13 | Irrigation | 1903 |