160Total Dams
86High Hazard
10Significant
Dam Safety in Collin County, Texas
Collin County has 160 dams tracked in the National Inventory of Dams. Of these, 86 are classified as high hazard — meaning failure would probably cause loss of human life. Another 10 carry a significant hazard classification. Currently, 4 dams have a condition assessment of poor or unsatisfactory.
The average dam in Collin County is 59 years old. The most common purpose is flood risk reduction. The tallest dam is Lavon Dam at 81 ft.
Explore more: Oldest dams in Texas · Tallest dams · High risk dams · Largest reservoirs
| Dam | Hazard | Condition | Height (ft) | Purpose | Year |
|---|---|---|---|---|---|
| Lavon Dam | High | Not assessed | 81 | Flood Risk Reduction | 1952 |
| East Fork Above Lavon Ws Scs Site 46 Dam | High | Fair | 55 | Flood Risk Reduction | 1960 |
| East Fork Above Lavon Ws Scs Site 3b Dam | High | Satisfactory | 55 | Flood Risk Reduction | 1958 |
| East Fork Above Lavon Ws Scs Site 1a Dam | High | Not assessed | 54 | Flood Risk Reduction | 1957 |
| East Fork Above Lavon Ws Scs Site 2a Dam | High | Fair | 53 | Flood Risk Reduction | 1958 |
| East Fork Above Lavon Ws Scs Site 4 Dam | High | Satisfactory | 53 | Flood Risk Reduction | 1959 |
| Sister Grove Creek Ws Scs Site 9 Dam | High | Fair | 50 | Flood Risk Reduction | 1953 |
| East Fork Above Lavon Ws Scs Site 47 Dam | High | Fair | 49 | Flood Risk Reduction | 1960 |
| East Fork Above Lavon Ws Scs Site 15 Dam | High | Not assessed | 49 | Flood Risk Reduction | 1951 |
| East Fork Above Lavon Ws Scs Site 11 Dam | High | Not assessed | 48 | Flood Risk Reduction | 1952 |
| East Fork Above Lavon Ws Scs Site 3a Dam | High | Satisfactory | 48 | Flood Risk Reduction | 1958 |
| Pilot Grove Creek Ws Scs Site 75 Dam | High | Not assessed | 47 | Flood Risk Reduction | 1965 |
| East Fork Above Lavon Ws Scs Site 17 Dam | High | Not assessed | 47 | Flood Risk Reduction | 1967 |
| East Fork Above Lavon Ws Scs Site 1c Dam | High | Not assessed | 45 | Flood Risk Reduction | 1964 |
| East Fork Above Lavon Ws Scs Site 8a Dam | High | Not assessed | 44 | Flood Risk Reduction | 1969 |
| East Fork Above Lavon Ws Scs Site 3c Dam | High | Not assessed | 44 | Flood Risk Reduction | 1958 |
| Rowlett Creek Ws Scs Site 4 Dam | High | Not assessed | 43 | Flood Risk Reduction | 1956 |
| East Fork Above Lavon Ws Scs Site 8e Dam | High | Not assessed | 43 | Flood Risk Reduction | 1957 |
| East Fork Above Lavon Ws Scs Site 9 Dam | High | Not assessed | 43 | Flood Risk Reduction | 1951 |
| East Fork Above Lavon Ws Scs Site 10 Dam | High | Not assessed | 43 | Flood Risk Reduction | 1952 |
| East Fork Above Lavon Ws Scs Site 1da Dam | High | Not assessed | 42 | Flood Risk Reduction | 1964 |
| East Fork Above Lavon Ws Scs Site 16 Dam | High | Not assessed | 42 | Flood Risk Reduction | 1951 |
| Sister Grove Creek Ws Scs Site 38 Dam | High | Not assessed | 41 | Flood Risk Reduction | 1959 |
| East Fork Above Lavon Ws Scs Site 8g Dam | High | Not assessed | 41 | Flood Risk Reduction | 1955 |
| East Fork Above Lavon Ws Scs Site 1b Dam | High | Not assessed | 40 | Flood Risk Reduction | 1957 |
| East Fork Above Lavon Ws Scs Site 14 Dam | High | Not assessed | 40 | Flood Risk Reduction | 1951 |
| East Fork Above Lavon Ws Scs Site 13 Dam | High | Not assessed | 40 | Flood Risk Reduction | 1952 |
| East Fork Above Lavon Ws Scs Site 8c Dam | High | Not assessed | 39 | Flood Risk Reduction | 1956 |
| East Fork Above Lavon Ws Scs Site 32 Dam | High | Not assessed | 39 | Flood Risk Reduction | 1966 |
| Stonebridge Lake 11 a Dam | High | Not assessed | 38 | Flood Risk Reduction | 1998 |
| Stonebridge Lake 12 Dam | High | Not assessed | 38 | Flood Risk Reduction | 1988 |
| Rowlett Creek Ws Scs Site 7 Dam | High | Not assessed | 38 | Flood Risk Reduction | 1957 |
| Sister Grove Creek Ws Scs Site 7 Dam | High | Unsatisfactory | 38 | Flood Risk Reduction | 1952 |
| Little Elm and Laterals Ws Scs Site 18a Dam | High | Fair | 38 | Flood Risk Reduction | 1970 |
| East Fork Above Lavon Ws Scs Site 12 Dam | High | Not assessed | 38 | Flood Risk Reduction | 1952 |
| Stonebridge Lake F 2 Dam | High | Not assessed | 37 | Flood Risk Reduction | 1988 |
| East Fork Above Lavon Ws Scs Site 33 Dam | High | Not assessed | 37 | Flood Risk Reduction | 1966 |
| East Fork Above Lavon Ws Scs Site 31 Dam | High | Not assessed | 37 | Flood Risk Reduction | 1965 |
| Stonebridge Lake 13 Dam | High | Not assessed | 36 | Flood Risk Reduction | 1988 |
| Upper East Fk Laterals Ws Scs Site 2 Dam | High | Fair | 36 | Flood Risk Reduction | 1958 |
| East Fork Above Lavon Ws Scs Site 2b Dam | High | Not assessed | 36 | Flood Risk Reduction | 1959 |
| Stonebridge Lake F 4 Dam | High | Fair | 35 | Flood Risk Reduction | 1988 |
| Sister Grove Creek Ws Scs Site 3 Dam | High | Unsatisfactory | 35 | Flood Risk Reduction | 1963 |
| East Fork Above Lavon Ws Scs Site 30 Dam | High | Not assessed | 35 | Flood Risk Reduction | 1965 |
| East Fork Above Lavon Ws Scs Site 3d Dam | High | Not assessed | 35 | Flood Risk Reduction | 1958 |
| Carter Ranch Dam | High | Not assessed | 34 | Recreation | |
| Pilot Grove Creek Ws Scs Site 80 Dam | High | Not assessed | 34 | Flood Risk Reduction | 1965 |
| Upper East Fk Laterals Ws Scs Site 3b Dam | High | Fair | 34 | Flood Risk Reduction | 1958 |
| Pilot Grove Creek Ws Scs Site 28 Dam | High | Not assessed | 34 | Flood Risk Reduction | 1964 |
| East Fork Above Lavon Ws Scs Site 5a Dam | High | Satisfactory | 34 | Flood Risk Reduction | 1958 |
| East Fork Above Lavon Ws Scs Site 3e Dam | High | Not assessed | 33 | Flood Risk Reduction | 1967 |
| East Fork Above Lavon Ws Scs Site 32a Dam | High | Not assessed | 33 | Flood Risk Reduction | 1966 |
| East Fork Above Lavon Ws Scs Site 29 Dam | High | Fair | 31 | Flood Risk Reduction | 1965 |
| Pilot Grove Creek Ws Scs Site 79 Dam | High | Not assessed | 31 | Flood Risk Reduction | 1965 |
| Stonebridge Lake F 3 Dam | High | Not assessed | 30 | Flood Risk Reduction | 1988 |
| East Fork Above Lavon Ws Scs Site 8d Dam | High | Not assessed | 30 | Flood Risk Reduction | 1957 |
| Willow Bend Lake No 1 Dam | High | Satisfactory | 30 | Recreation | 1960 |
| 380 Town Centre Dam | High | Not assessed | 28 | ||
| Apples Crossing Pond 1 Dam | High | Not assessed | 28 | 2019 | |
| Stonebridge Lake B Dam | High | Not assessed | 28 | Flood Risk Reduction | 1988 |
| Stonebridge Lake 11 D Dam | High | Not assessed | 28 | Flood Risk Reduction | 1988 |
| Lake Rr2 Dam | High | Fair | 27 | Recreation | 1955 |
| Rowlett Creek Ws Scs Site 5 Dam | High | Not assessed | 27 | Flood Risk Reduction | 1956 |
| Pilot Grove Creek Ws Scs Site 83a Dam | High | Not assessed | 27 | Flood Risk Reduction | 1921 |
| Clark Middle South Dam | High | Fair | 25 | ||
| Phillips Park Lake Dam | High | Poor | 25 | Recreation | 1920 |
| Stonebridge Lake F 1 Dam | High | Not assessed | 25 | Flood Risk Reduction | 1988 |
| Prestonwood West Dam | High | Fair | 25 | Flood Risk Reduction | 1959 |
| Pilot Grove Creek Ws Scs Site 82 Dam | High | Not assessed | 25 | Flood Risk Reduction | 1935 |
| The Preserve Dam | High | Satisfactory | 24 | Recreation | 2012 |
| Lago Grande Dam | High | Fair | 24 | Irrigation | 1973 |
| Little Elm and Laterals Ws Scs Site 8b Dam | High | Not assessed | 24 | Flood Risk Reduction | 1971 |
| Little Elm and Laterals Ws Scs Site 9 Dam | High | Not assessed | 24 | Flood Risk Reduction | 1971 |
| Willow Bend Lake No 2 Dam | High | Satisfactory | 23 | Recreation | 1957 |
| Vial Lake Dam | High | Satisfactory | 23 | 1965 | |
| Stonebridge Lake C Dam | High | Not assessed | 22 | Flood Risk Reduction | 1998 |
| Clark Southwest Dam | High | Fair | 21 | ||
| Clark Northwest Dam | High | Fair | 21 | ||
| Lake Lacima Dam | High | Fair | 21 | Recreation | 1975 |
| Trinity Falls Pond D Weir Dam | High | Satisfactory | 21 | 2016 | |
| Old Town Retention Pond Dam | High | Satisfactory | 20 | 2021 | |
| Lavon Bluff Dam | High | Fair | 18 | ||
| Garilen Pond 1 Dam | High | Fair | 17 | ||
| Eldorado Detention Basin E Dam | High | Fair | 13 | Flood Risk Reduction | 1987 |
| Lake Rr3 Dam | High | Poor | 12 | Recreation | 1955 |
| Feagins Dam | High | Fair | 9 | ||
| Sister Grove Creek Ws Scs Site 5 Dam | Significant | Not assessed | 49 | Flood Risk Reduction | 1952 |
| Pilot Grove Creek Ws Scs Site 29 Dam | Significant | Not assessed | 35 | Flood Risk Reduction | 1964 |
| Sister Grove Creek Ws Scs Site 4 Dam | Significant | Not assessed | 28 | Flood Risk Reduction | 1960 |
| Pilot Grove Creek Ws Scs Site 58 Dam | Significant | Fair | 27 | Flood Risk Reduction | 1981 |
| Seis Lagos No 5 Dam | Significant | Fair | 25 | Irrigation | 1968 |
| Domain Subdivision Pond a | Significant | Satisfactory | 18 | 2003 | |
| Eds Dam No 2 | Significant | Not assessed | 18 | Irrigation | 1992 |
| Domain Subdivision Pond B | Significant | Fair | 15 | 2003 | |
| Eds Dam No 1 | Significant | Not assessed | 14 | Irrigation | 1992 |
| Erwin Farms Phase 3 Dam A1 | Significant | Not assessed | 0 | ||
| East Fork Above Lavon Ws Scs Site 42 Dam | Low | Not assessed | 56 | Flood Risk Reduction | 1958 |
| Sister Grove Creek Ws Scs Site 12 Dam | Low | Not assessed | 53 | Flood Risk Reduction | 1958 |
| Sister Grove Creek Ws Scs Site 6 Dam | Low | Not assessed | 48 | Flood Risk Reduction | 1959 |
| Pilot Grove Creek Ws Scs Site 73 Dam | Low | Not assessed | 47 | Flood Risk Reduction | 1965 |
| East Fork Above Lavon Ws Scs Site 34 Dam | Low | Not assessed | 46 | Flood Risk Reduction | 1966 |
| East Fork Above Lavon Ws Scs Site 8b1 Dam | Low | Not assessed | 45 | Flood Risk Reduction | 1974 |
| East Fork Above Lavon Ws Scs Site 43 Dam | Low | Not assessed | 44 | Flood Risk Reduction | 1959 |
| Sister Grove Creek Ws Scs Site 16 Dam | Low | Not assessed | 44 | Flood Risk Reduction | 1965 |
| Sister Grove Creek Ws Scs Site 1 Dam | Low | Not assessed | 43 | Flood Risk Reduction | 1963 |
| East Fork Above Lavon Ws Scs Site 8h Dam | Low | Not assessed | 43 | Flood Risk Reduction | 1956 |
| East Fork Above Lavon Ws Scs Site 53 Dam | Low | Not assessed | 43 | Flood Risk Reduction | 1969 |
| Sister Grove Creek Ws Scs Site 8 Dam | Low | Not assessed | 42 | Flood Risk Reduction | 1959 |
| East Fork Above Lavon Ws Scs Site 44 Dam | Low | Not assessed | 42 | Flood Risk Reduction | 1959 |
| East Fork Above Lavon Ws Scs Site 45 Dam | Low | Not assessed | 42 | Flood Risk Reduction | 1959 |
| Sister Grove Creek Ws Scs Site 13 Dam | Low | Not assessed | 39 | Flood Risk Reduction | 1959 |
| Pilot Grove Creek Ws Scs Site 85b Dam | Low | Not assessed | 39 | Flood Risk Reduction | 1966 |
| East Fork Above Lavon Ws Scs Site 48 Dam | Low | Not assessed | 39 | Flood Risk Reduction | 1966 |
| East Fork Above Lavon Ws Scs Site 8f Dam | Low | Not assessed | 38 | Flood Risk Reduction | 1955 |
| Sister Grove Creek Ws Scs Site 10 Dam | Low | Not assessed | 38 | Flood Risk Reduction | 1953 |
| Pilot Grove Creek Ws Scs Site 70 Dam | Low | Not assessed | 37 | Flood Risk Reduction | 1975 |
| Sister Grove Creek Ws Scs Site 17 Dam | Low | Not assessed | 37 | Flood Risk Reduction | 1965 |
| Sister Grove Creek Ws Scs Site 2 Dam | Low | Not assessed | 34 | Flood Risk Reduction | 1960 |
| Pilot Grove Creek Ws Scs Site 71 Dam | Low | Not assessed | 34 | Flood Risk Reduction | 1975 |
| Sister Grove Creek Ws Scs Site 14 Dam | Low | Not assessed | 33 | Flood Risk Reduction | 1959 |
| Twin Arrow No 2 Dam | Low | Not assessed | 32 | 1973 | |
| East Fork Above Lavon Ws Scs Site 24 Dam | Low | Not assessed | 32 | Flood Risk Reduction | 1953 |
| Little Elm and Laterals Ws Scs Site 12 Dam | Low | Not assessed | 31 | Flood Risk Reduction | 1971 |
| Upper East Fk Laterals Ws Scs Site 3a Dam | Low | Not assessed | 31 | Flood Risk Reduction | 1958 |
| Jim Porter Dam | Low | Not assessed | 30 | Fire Protection, Stock, Or Small Fish Pond | 1972 |
| Pilot Grove Creek Ws Scs Site 76 Dam | Low | Not assessed | 30 | Flood Risk Reduction | 1965 |
| Pilot Grove Creek Ws Scs Site 44a Dam | Low | Not assessed | 30 | Flood Risk Reduction | 1974 |
| Meat Producers Dam | Low | Not assessed | 29 | Irrigation | 1969 |
| East Fork Above Lavon Ws Scs Site 29a Dam | Low | Not assessed | 29 | Flood Risk Reduction | 1965 |
| Jordan Dam | Low | Not assessed | 28 | 1966 | |
| Twin Arrow No 1 Gss | Low | Not assessed | 28 | 1974 | |
| Pilot Grove Creek Ws Scs Site 49 Dam | Low | Not assessed | 28 | Flood Risk Reduction | 1963 |
| Pilot Grove Creek Ws Scs Site 43 Dam | Low | Not assessed | 28 | Flood Risk Reduction | 1969 |
| Pilot Grove Creek Ws Scs Site 33 Dam | Low | Not assessed | 28 | Flood Risk Reduction | 1966 |
| Sister Grove Creek Ws Scs Site 11 Dam | Low | Not assessed | 28 | Flood Risk Reduction | 1953 |
| Sister Grove Creek Ws Scs Site 15 Dam | Low | Not assessed | 28 | Flood Risk Reduction | 1959 |
| Twin Arrow No 3 Dam | Low | Not assessed | 27 | 1970 | |
| Timber Creek Dam | Low | Not assessed | 27 | Irrigation | |
| Little Elm & Laterals Ws Scs Site 16 Dam | Low | Not assessed | 27 | Flood Risk Reduction | 1976 |
| Boyd Lake Dam | Low | Not assessed | 26 | Fire Protection, Stock, Or Small Fish Pond | 1968 |
| Pilot Grove Creek Ws Scs Site 48 Dam | Low | Not assessed | 26 | Flood Risk Reduction | 1963 |
| Bell Lake Dam | Low | Not assessed | 25 | Recreation | 1968 |
| Pilot Grove Creek Ws Scs Site 77 Dam | Low | Not assessed | 25 | Flood Risk Reduction | 1965 |
| Pilot Grove Creek Ws Scs Site 50 Dam | Low | Not assessed | 24 | Flood Risk Reduction | 1963 |
| Little Elm and Laterals Ws Scs Site 19 Dam | Low | Not assessed | 24 | Flood Risk Reduction | 1970 |
| Pilot Grove Creek Ws Scs Site 85a Dam | Low | Not assessed | 23 | Flood Risk Reduction | 1966 |
| Anderson Lake Dam | Low | Not assessed | 22 | Fire Protection, Stock, Or Small Fish Pond | 1960 |
| Little Elm and Laterals Ws Scs Site 11 Dam | Low | Not assessed | 21 | Flood Risk Reduction | 1971 |
| Renner Road West Detention Pond Dam | Low | Not assessed | 20 | Flood Risk Reduction | |
| Tx No Name No 26 Dam | Low | Not assessed | 19 | Recreation | 1960 |
| Box Lake Dam | Low | Not assessed | 18 | Fire Protection, Stock, Or Small Fish Pond | 1967 |
| Reed Lake Dam | Low | Not assessed | 18 | Recreation | 1960 |
| Monroe Lake Dam | Low | Not assessed | 15 | Recreation | 1961 |
| Mustang Ranch Pond No 5 Dam | Low | Not assessed | 15 | 2015 | |
| Collin County Adventure Camp Dam No 1 | Low | Not assessed | 15 | Recreation | 1995 |
| Lewis Lake Dam | Low | Not assessed | 14 | Fire Protection, Stock, Or Small Fish Pond | 1968 |
| Pierce Pond Dam | Low | Not assessed | 14 | Recreation | 1950 |
| Collin County Adventure Camp Dam No 2 | Low | Not assessed | 12 | Recreation | 2006 |
| Tp and L Dam | Low | Not assessed | 10 | Other | 1960 |
| Caldwell Dam | Low | Not assessed | 8 | Irrigation | 1957 |