75Total Dams
29High Hazard
11Significant
Dam Safety in Fairfax County, Virginia
Fairfax County has 75 dams tracked in the National Inventory of Dams. Of these, 29 are classified as high hazard — meaning failure would probably cause loss of human life. Another 11 carry a significant hazard classification.
The average dam in Fairfax County is 50 years old. The most common purpose is flood risk reduction. The tallest dam is Barcroft Dam at 69 ft.
Explore more: Oldest dams in Virginia · Tallest dams · High risk dams · Largest reservoirs
| Dam | Hazard | Condition | Height (ft) | Purpose | Year |
|---|---|---|---|---|---|
| Barcroft Dam | High | Fair | 69 | Recreation | |
| Kingstowne Lake Dam | High | Satisfactory | 64 | Recreation | |
| Pohick Creek Dam #1 | High | Satisfactory | 60 | Flood Risk Reduction | |
| Lake Thoreau Dam | High | Satisfactory | 56 | Recreation | |
| Burke Lake Dam | High | Fair | 50 | Recreation | |
| Lake Anne Dam | High | Fair | 47 | Recreation | |
| Pohick Creek Dam #7 | High | Satisfactory | 47 | Flood Risk Reduction | |
| Lake Audubon Dam | High | Satisfactory | 46 | Recreation | |
| Pohick Creek Dam #8 | High | Satisfactory | 45 | Flood Risk Reduction | |
| Kingstowne Swm Dp #4 Regional | High | Satisfactory | 43 | Flood Risk Reduction | |
| Pohick Creek Dam #4 | High | Satisfactory | 42 | Flood Risk Reduction | |
| Upper Occoquan Sewage Authority Dam | High | Fair | 41 | Other | |
| Pohick Creek Dam #2 | High | Satisfactory | 39 | Flood Risk Reduction | |
| Pohick Creek Dam #3 | High | Satisfactory | 38 | Flood Risk Reduction | |
| Burke Centre Section 11b Dam | High | Satisfactory | 35 | Flood Risk Reduction | |
| Lake Fairfax Dam | High | Satisfactory | 32 | Recreation | |
| Lake Newport Dam | High | Satisfactory | 32 | Recreation | |
| Lake Accotink Dam | High | Fair | 28 | Recreation | |
| Fairview Lake Dam | High | Satisfactory | 27 | Flood Risk Reduction | |
| West Ox Road Bmp Dam | High | Satisfactory | 26 | Flood Risk Reduction | |
| Fair Lakes Dam #1 | High | Satisfactory | 25 | Flood Risk Reduction | |
| Carrington Regional Dam | High | Satisfactory | 25 | Flood Risk Reduction | |
| Reston Town Center Western Bmp Dam | High | Satisfactory | 21 | Flood Risk Reduction | |
| Reston Northern Sector Pond 1 Dam | High | Satisfactory | 21 | Flood Risk Reduction | |
| Fair Lakes Land Bay 2 Swm Bmp Pond Dam | High | Satisfactory | 21 | Flood Risk Reduction | |
| Occoquan Lower Storage Dam | High | Satisfactory | 20 | Water Supply | |
| Crosspointe Lake Dam | High | Fair | 20 | Flood Risk Reduction | |
| Pulte Mclean Swm Pond Dam | High | Satisfactory | 17 | ||
| Hampton Forest Section 4 Swm Dam | High | Satisfactory | 16 | Flood Risk Reduction | |
| Island Creek Dam | Significant | Not assessed | 40 | Flood Risk Reduction | |
| Nvcc Annandale Campus Dam | Significant | Satisfactory | 29 | Recreation | |
| Kings Park West Section 18 Dam | Significant | Satisfactory | 26 | Flood Risk Reduction | 1976 |
| North Twin Lake Dam | Significant | Satisfactory | 26 | Recreation | |
| Emergency Sewage Retention Pond No.2 Structure | Significant | Not assessed | 25 | Other | |
| No. 2 Dam of 4 Kingstowne Park Impoundments | Significant | Not assessed | 25 | Tailings | |
| Emergency Sewage Retention Pond No.1 Structure | Significant | Not assessed | 21 | Other | |
| Dulles Corner Lake Dam | Significant | Satisfactory | 20 | Other | |
| Daddy Long Lake Dam | Significant | Not assessed | 15 | Fish and Wildlife Pond | |
| South Twin Lake Dam | Significant | Satisfactory | 14 | Recreation | |
| East Market Pond Dam | Significant | Not assessed | 12 | Flood Risk Reduction | |
| Brookfield Park Dam | Low | Satisfactory | 34 | ||
| Fox Lake Dam | Low | Satisfactory | 33 | Recreation | |
| Hunter Mill Estates Regional Pond D-52/25 | Low | Satisfactory | 31 | Flood Risk Reduction | |
| Fairfax Center Regional Swm Pond #d77 | Low | Satisfactory | 26 | Flood Risk Reduction | |
| Dulles Station Regional Pond Dam | Low | Satisfactory | 21 | Flood Risk Reduction | |
| Reston Parkway Phase 2 Swm Facility #2 | Low | Not assessed | 20 | Flood Risk Reduction | |
| Sewage Holding Pond No.2 Lower Potomac Pollution Control Plant | Low | Not assessed | 16 | Other | |
| Chantilly Country Club Dam | Low | Satisfactory | 15 | Recreation | |
| Wolf Trap Farm Pond Dam | Low | Not assessed | 7 | Fire Protection, Stock, Or Small Fish Pond | |
| Fairfax Dam #7 | Undetermined | Not assessed | 40 | ||
| Fairfax Dam #6 | Undetermined | Not assessed | 28 | ||
| Compton Village Lake Dam | Undetermined | Not assessed | 28 | Flood Risk Reduction | |
| Arrf P Holdings Dam | Undetermined | Not assessed | 27 | ||
| Fox Lair Regional Pond Embankment | Undetermined | Not assessed | 27 | Flood Risk Reduction | |
| Reston Section 43 Swm Facility | Undetermined | Not assessed | 26 | Flood Risk Reduction | |
| Laurel Hill Lake Dam | Undetermined | Not assessed | 25 | Irrigation | |
| Westfields Swm Retention Pond No. 13 Dam | Undetermined | Not assessed | 25 | Flood Risk Reduction | |
| Lakeside Dam No. 2 | Undetermined | Not assessed | 25 | Flood Risk Reduction | |
| Reston Parkway Phase 2 Swm Facility No. 3 | Undetermined | Not assessed | 25 | Flood Risk Reduction | |
| Trinity Centre Dam | Undetermined | Not assessed | 23 | ||
| Springfield Golf & Country Club Lower Dam | Undetermined | Not assessed | 23 | Irrigation | |
| Springfield Golf & Country Club Upper Dam | Undetermined | Not assessed | 23 | Irrigation | |
| Kingstowne Swm/bmp Basin #1 | Undetermined | Not assessed | 22 | Flood Risk Reduction | |
| Walnut Branch Road Detention Pond Dam | Undetermined | Not assessed | 22 | Flood Risk Reduction | |
| F.p. Griffith Water Plant Stormwater Outflow #6 | Undetermined | Not assessed | 22 | Flood Risk Reduction | |
| Hidden Spring Dam | Undetermined | Not assessed | 20 | Recreation | |
| F.p. Griffith Water Plant Lorton Quarry | Undetermined | Not assessed | 20 | Other | |
| Penderbrook North Pond Dam | Undetermined | Not assessed | 20 | Flood Risk Reduction | |
| Martins Lake Dam | Undetermined | Not assessed | 19 | Recreation | |
| Penderbrook South Pond Dam | Undetermined | Not assessed | 19 | Flood Risk Reduction | |
| Burke Hill Dam | Undetermined | Not assessed | 18 | Recreation | |
| Marmota Farm Pond Dam | Undetermined | Not assessed | 16 | Recreation | |
| Crippen Dam | Undetermined | Not assessed | 9 | Other | |
| Lower Timber Lake Dike | Undetermined | Not assessed | 8 | Recreation | |
| Mule Pen Quarry Structure No. 1 (1 of 3 Structures) | Undetermined | Not assessed | 6 | Other |