Lake Ridge Community Pond Dam (alta Drive) is an earth dam located in Calvert County, Maryland, built in 1969. It carries a Significant hazard potential classification and has a fair condition assessment.
Dam profile
NID height · 28 ft28 ft tall and 285 ft long, taller than 62% of U.S. dams with a recorded height. 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 Lake Ridge Community Pond Dam (alta Drive)
The primary purpose of Lake Ridge Community Pond Dam (alta Drive) is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Lake Ridge Homeowners Association, Inc. (private). It impounds the Fishing Creek-tr near Chesapeake Beach.
The dam stands 28 feet tall and stretches 285 feet across, creates a reservoir covering 7 acres, has a maximum storage capacity of 154 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1969, the structure is well into its service life at over 50 years old.
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. The most recent inspection on record was 11/16/2023.
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Location
| State | Maryland |
| County | Calvert |
| Nearest City | Chesapeake Beach |
| River/Stream | Fishing Creek-tr |
| Coordinates | 38.66045, -76.57707 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 28 ft |
| Dam Height | 28 ft |
| Dam Length | 285 ft |
| Year Completed | 1969 (57 years old) |
Storage & Hydraulics
| NID Storage | 154 acre-ft |
| Max Storage | 154 acre-ft |
| Normal Storage | 67 acre-ft |
| Surface Area | 7 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 38 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | Lake Ridge Homeowners Association, Inc. |
| Owner Type | Private |
| Hazard Classification | Significant |
| Condition Assessment | Fair |
| Last Inspection | 11/16/2023 |
| Emergency Action Plan | No |
Identifiers
| NID ID | MD00186 |
| Federal ID | MD00186 |
| More Info | State Dam Safety Program |