Jessup Park Dam
Jessup Park Dam is an earth dam located in Howard County, Maryland, built in 2010. It carries a Significant hazard potential classification and has a poor condition assessment.
About Jessup Park Dam
The primary purpose of Jessup Park 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 Francis O. Day Company (private). It impounds the Dorsey Run-tr near Jessup.
The dam stands 15 feet tall and stretches 663 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 2010, 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 poor, meaning the dam has recognized safety deficiencies that require remediation to address risks. The most recent inspection on record was 11/16/2022.
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Location
| State | Maryland |
| County | Howard |
| Nearest City | Jessup |
| River/Stream | Dorsey Run-tr |
| Coordinates | 39.15399, -76.77509 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 15 ft |
| Dam Height | 10 ft |
| Dam Length | 663 ft |
| Year Completed | 2010 (16 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 | 313 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | Francis O. Day Company |
| Owner Type | Private |
| Hazard Classification | Significant |
| Condition Assessment | Poor |
| Last Inspection | 11/16/2022 |
| Emergency Action Plan | No |
Identifiers
| NID ID | MD00468 |
| Federal ID | MD00468 |
| More Info | State Dam Safety Program |