Dams in Fairfax County, Virginia
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 Rated | 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 Rated | 25 | Other | |
| No. 2 Dam Of 4 Kingstowne Park Impoundments | Significant | Not Rated | 25 | Tailings | |
| Emergency Sewage Retention Pond No.1 Structure | Significant | Not Rated | 21 | Other | |
| Dulles Corner Lake Dam | Significant | Satisfactory | 20 | Other | |
| Daddy Long Lake Dam | Significant | Not Rated | 15 | Fish and Wildlife Pond | |
| South Twin Lake Dam | Significant | Satisfactory | 14 | Recreation | |
| East Market Pond Dam | Significant | Not Rated | 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 Rated | 20 | Flood Risk Reduction | |
| Sewage Holding Pond No.2 Lower Potomac Pollution Control Plant | Low | Not Rated | 16 | Other | |
| Chantilly Country Club Dam | Low | Satisfactory | 15 | Recreation | |
| Wolf Trap Farm Pond Dam | Low | Not Rated | 7 | Fire Protection, Stock, Or Small Fish Pond | |
| Fairfax Dam #7 | Undetermined | Not Rated | 40 | ||
| Fairfax Dam #6 | Undetermined | Not Rated | 28 | ||
| Compton Village Lake Dam | Undetermined | Not Rated | 28 | Flood Risk Reduction | |
| Arrf P Holdings Dam | Undetermined | Not Rated | 27 | ||
| Fox Lair Regional Pond Embankment | Undetermined | Not Rated | 27 | Flood Risk Reduction | |
| Reston Section 43 Swm Facility | Undetermined | Not Rated | 26 | Flood Risk Reduction | |
| Laurel Hill Lake Dam | Undetermined | Not Rated | 25 | Irrigation | |
| Westfields Swm Retention Pond No. 13 Dam | Undetermined | Not Rated | 25 | Flood Risk Reduction | |
| Lakeside Dam No. 2 | Undetermined | Not Rated | 25 | Flood Risk Reduction | |
| Reston Parkway Phase 2 Swm Facility No. 3 | Undetermined | Not Rated | 25 | Flood Risk Reduction | |
| Trinity Centre Dam | Undetermined | Not Rated | 23 | ||
| Springfield Golf & Country Club Lower Dam | Undetermined | Not Rated | 23 | Irrigation | |
| Springfield Golf & Country Club Upper Dam | Undetermined | Not Rated | 23 | Irrigation | |
| Kingstowne Swm/bmp Basin #1 | Undetermined | Not Rated | 22 | Flood Risk Reduction | |
| Walnut Branch Road Detention Pond Dam | Undetermined | Not Rated | 22 | Flood Risk Reduction | |
| F.p. Griffith Water Plant Stormwater Outflow #6 | Undetermined | Not Rated | 22 | Flood Risk Reduction | |
| Hidden Spring Dam | Undetermined | Not Rated | 20 | Recreation | |
| F.p. Griffith Water Plant Lorton Quarry | Undetermined | Not Rated | 20 | Other | |
| Penderbrook North Pond Dam | Undetermined | Not Rated | 20 | Flood Risk Reduction | |
| Martins Lake Dam | Undetermined | Not Rated | 19 | Recreation | |
| Penderbrook South Pond Dam | Undetermined | Not Rated | 19 | Flood Risk Reduction | |
| Burke Hill Dam | Undetermined | Not Rated | 18 | Recreation | |
| Marmota Farm Pond Dam | Undetermined | Not Rated | 16 | Recreation | |
| Crippen Dam | Undetermined | Not Rated | 9 | Other | |
| Lower Timber Lake Dike | Undetermined | Not Rated | 8 | Recreation | |
| Mule Pen Quarry Structure No. 1 (1 Of 3 Structures) | Undetermined | Not Rated | 6 | Other |