Great Star Drive Swm Dam
Great Star Drive Swm Dam is an earth dam located in Howard County, Maryland, built in 1997. It carries a Low hazard potential classification and has a satisfactory condition assessment.
About Great Star Drive Swm Dam
The primary purpose of Great Star Drive Swm 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 Columbia Association (private). It impounds the Middle Patuxent River-tr near River Hill.
The dam stands 20 feet tall and stretches 600 feet across, and has a maximum storage capacity of 52 acre-feet. Completed in 1997, the structure is 29 years old.
This dam has a low hazard potential classification, meaning that failure would cause minimal damage, limited primarily to the dam owner's property, with no expected 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 07/28/2021.
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Location
| State | Maryland |
| County | Howard |
| Nearest City | River Hill |
| River/Stream | Middle Patuxent River-tr |
| Coordinates | 39.20556, -76.92994 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 20 ft |
| Dam Height | 20 ft |
| Dam Length | 600 ft |
| Year Completed | 1997 (29 years old) |
Storage & Hydraulics
| NID Storage | 52 acre-ft |
| Max Storage | 52 acre-ft |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | Columbia Association |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Satisfactory |
| Last Inspection | 07/28/2021 |
| Emergency Action Plan | No |
Identifiers
| NID ID | MD00222 |
| Federal ID | MD00222 |
| More Info | State Dam Safety Program |