Grahams Lake Dam is an earth dam located in Peoria County, Illinois, built in 1950. It carries a Low hazard potential classification.
Dam profile
NID height · 32 ft32 ft tall and 412 ft long, taller than 74% 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 Grahams Lake Dam
Grahams Lake Dam is a dam in Peoria, Illinois. The dam is owned by Mr. Beecher (private). It impounds the Trib Tiber Creek near Glasford-offstream.
The dam stands 32 feet tall and stretches 412 feet across, and has a maximum storage capacity of 90 acre-feet. Completed in 1950, the structure is well-established, with more than 75 years of service.
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 09/15/2022.
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Location
| State | Illinois |
| County | Peoria |
| Nearest City | Glasford-offstream |
| River/Stream | Trib Tiber Creek |
| Coordinates | 40.65569, -89.92181 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 32 ft |
| Dam Height | 32 ft |
| Dam Length | 412 ft |
| Year Completed | 1950 (76 years old) |
Storage & Hydraulics
| NID Storage | 90 acre-ft |
| Max Storage | 90 acre-ft |
| Normal Storage | 60 acre-ft |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Other |
| Owner | Mr. Beecher |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 09/15/2022 |
| Emergency Action Plan | No |
Identifiers
| NID ID | IL00357 |
| Federal ID | IL00357 |
| More Info | State Dam Safety Program |