33Total Dams
13High Hazard
5Significant
Dam Safety in Prince William County, Virginia
Prince William County has 33 dams tracked in the National Inventory of Dams. Of these, 13 are classified as high hazard — meaning failure would probably cause loss of human life. Another 5 carry a significant hazard classification. Currently, 1 dam has a condition assessment of poor or unsatisfactory.
The most common purpose is flood risk reduction. The tallest dam is Possum Point Ash Dam #d at 140 ft.
Explore more: Oldest dams in Virginia · Tallest dams · High risk dams · Largest reservoirs
| Dam | Hazard | Condition | Height (ft) | Purpose | Year |
|---|---|---|---|---|---|
| Possum Point Ash Dam #d | High | Satisfactory | 140 | Debris Control | |
| T. Nelson Elliott Dam | High | Satisfactory | 76 | Water Supply | |
| Lake Montclair Dam | High | Poor | 74 | Recreation | |
| Upper Occoquan Dam | High | Satisfactory | 65 | Water Supply | |
| Prince William Parkway Regional Swm | High | Satisfactory | 48 | Flood Risk Reduction | |
| Silver Lake Dam | High | Satisfactory | 27 | Recreation | |
| Locust Shade Park Dam | High | Satisfactory | 24 | ||
| North Fork Wetlands Bank Dam | High | Satisfactory | 24 | Other | |
| Arc Redevelopment Swm Pond Dam | High | Not assessed | 22 | Flood Risk Reduction | |
| Rocky Branch Regional Swm Dam | High | Satisfactory | 22 | Flood Risk Reduction | |
| Omisol Dam | High | Fair | 21 | Recreation | |
| Innovation at Prince William - Pond 3 | High | Satisfactory | 16 | Flood Risk Reduction | |
| New Bristow Village Regional Swm Facility Dam | High | Not assessed | 16 | Flood Risk Reduction | |
| Nvcc Woodbridge Campus Dam | Significant | Satisfactory | 48 | Recreation | |
| Market Center Pond 1 Dam | Significant | Satisfactory | 38 | Flood Risk Reduction | |
| Southern Shores Drive Dam | Significant | Not assessed | 34 | Flood Risk Reduction | |
| Potomac Club Regional Pond Dam | Significant | Satisfactory | 34 | Flood Risk Reduction | |
| Lake Jackson Dam | Significant | Satisfactory | 28 | Recreation | |
| Possum Point Ash Dam #e | Low | Satisfactory | 40 | Debris Control | |
| Possum Point Power Station Oil Water Treatment Basin Dam | Low | Satisfactory | 37 | ||
| Meadows Dry Pond Dam | Low | Not assessed | 27 | Flood Risk Reduction | |
| Meadows Wet Pond Dam | Low | Not assessed | 25 | Flood Risk Reduction | |
| Camp 5 Dam | Low | Not assessed | 24 | Recreation | |
| Camp 4 Dam | Low | Not assessed | 16 | ||
| Manassas Nbp, Noname Dam #1 Thru 10 | Low | Not assessed | 10 | Fire Protection, Stock, Or Small Fish Pond | |
| Shirley Bell Dam | Undetermined | Not assessed | 33 | ||
| Va E&p Co Dam | Undetermined | Not assessed | 28 | ||
| Br Golf Dam | Undetermined | Fair | 24 | ||
| Vc Conley Dam | Undetermined | Not assessed | 24 | ||
| Buckland Dam | Undetermined | Not assessed | 22 | Recreation | |
| Lake Plaza Prop Dam | Undetermined | Not assessed | 22 | ||
| Schumacher Dam | Undetermined | Not assessed | 18 | ||
| Engh Dam | Undetermined | Not assessed | 18 | Irrigation |