Heritage Glen Dam is an earth dam located in Prince George's County, Maryland, built in 2004. It carries a Significant hazard potential classification and has a satisfactory condition assessment.
Dam profile
NID height · 12 ft12 ft tall and 260 ft long. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic embankment section and the water level is illustrative.
About Heritage Glen Dam
The primary purpose of Heritage Glen Dam is flood risk reduction. The dam is designed to control downstream flooding by temporarily storing excess water during storms and releasing it at a controlled rate. The dam is owned by Prince Georges County Depart. of the Environment (local government). It impounds the Southwest Branch-tr near New Orchard Estates.
The dam stands 12 feet tall and stretches 260 feet across, creates a reservoir covering 0 acres, has a maximum storage capacity of 5 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 2004, the structure is relatively new.
This dam has a significant hazard potential classification, meaning that a failure could cause significant economic damage — flooding roads, bridges, or property downstream — but is not expected to result in loss of life. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. The most recent inspection on record was 06/09/2022.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | Maryland |
| County | Prince George's |
| Nearest City | New Orchard Estates |
| River/Stream | Southwest Branch-tr |
| Coordinates | 38.87243, -76.83298 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 12 ft |
| Dam Height | 12 ft |
| Dam Length | 260 ft |
| Year Completed | 2004 (22 years old) |
Storage & Hydraulics
| NID Storage | 5 acre-ft |
| Max Storage | 5 acre-ft |
| Normal Storage | 0 acre-ft |
| Surface Area | 0 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 750 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | Prince Georges County Depart. of the Environment |
| Owner Type | Local Government |
| Hazard Classification | Significant |
| Condition Assessment | Satisfactory |
| Last Inspection | 06/09/2022 |
| Emergency Action Plan | No |
Identifiers
| NID ID | MD00419 |
| Federal ID | MD00419 |
| More Info | State Dam Safety Program |