Country Lake Dam is an earth dam located in Menard County, Illinois, built in 1975. It carries a Low hazard potential classification.
Dam profile
NID height · 39 ft39 ft tall and 530 ft long, taller than 85% 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 Country Lake Dam
The primary purpose of Country Lake Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Country Lake Homeowners Assoc. (private). It impounds the Halls Branch near Springfield.
The dam stands 39 feet tall and stretches 530 feet across, and has a maximum storage capacity of 123 acre-feet. Completed in 1975, the structure is well into its service life at over 50 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. The most recent inspection on record was 09/21/2023.
At 39 feet, this dam is taller than 85% of dams nationwide.
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Location
| State | Illinois |
| County | Menard |
| Nearest City | Springfield |
| River/Stream | Halls Branch |
| Coordinates | 39.96352, -89.74739 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 39 ft |
| Dam Height | 39 ft |
| Dam Length | 530 ft |
| Year Completed | 1975 (51 years old) |
Storage & Hydraulics
| NID Storage | 123 acre-ft |
| Max Storage | 123 acre-ft |
| Normal Storage | 93 acre-ft |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | Country Lake Homeowners Assoc. |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 09/21/2023 |
| Emergency Action Plan | No |
Identifiers
| NID ID | IL01065 |
| Federal ID | IL01065 |
| More Info | State Dam Safety Program |