Andrews Lake Dam
Andrews Lake Dam is a gravity dam located in Kent County, Delaware. It carries a Significant hazard potential classification and has a fair condition assessment.
About Andrews Lake Dam
The primary purpose of Andrews Lake Dam is fish and wildlife pond. The dam creates habitat for fish and wildlife, supporting local ecosystems and potentially serving conservation goals. The dam is owned by Deldot;dnrec Dfw (state). It impounds the Pratt Branch near Frederica.
The dam stands 18 feet tall and stretches 600 feet across, creates a reservoir covering 20 acres, has a maximum storage capacity of 407 acre-feet, and collects water from a drainage area of 6 square miles.
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 fair — the dam has minor deficiencies that are being addressed or do not pose an immediate safety threat. An emergency action plan is in place for this dam. The most recent inspection on record was 05/17/2023.
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Location
| State | Delaware |
| County | Kent |
| Nearest City | Frederica |
| River/Stream | Pratt Branch |
| Coordinates | 39.02489, -75.50852 |
Physical Characteristics
| Dam Type | Gravity |
| NID Height | 18 ft |
| Dam Height | 18 ft |
| Dam Length | 600 ft |
Storage & Hydraulics
| NID Storage | 407 acre-ft |
| Max Storage | 407 acre-ft |
| Normal Storage | 89 acre-ft |
| Surface Area | 20 acres |
| Drainage Area | 6 sq mi |
| Max Discharge | 2,202 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Fish and Wildlife Pond |
| Owner | DELDOT;DNREC DFW |
| Owner Type | State |
| Hazard Classification | Significant |
| Condition Assessment | Fair |
| Last Inspection | 05/17/2023 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | DE00037 |
| Federal ID | DE00037 |
| More Info | State Dam Safety Program |