Hiland Lake Dam is an earth dam located in Hancock County, Illinois, built in 1965. It carries a Low hazard potential classification.
Dam profile
NID height · 29 ft29 ft tall and 270 ft long, taller than 65% 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 Hiland Lake Dam
The primary purpose of Hiland Lake Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Larry Hiland (private). It impounds the Trib Flour Creek near Plymouth-offstream.
The dam stands 29 feet tall and stretches 270 feet across, and has a maximum storage capacity of 52 acre-feet. Completed in 1965, 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 04/08/2024.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | Illinois |
| County | Hancock |
| Nearest City | Plymouth-offstream |
| River/Stream | Trib Flour Creek |
| Coordinates | 40.26929, -90.92291 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 29 ft |
| Dam Height | 29 ft |
| Dam Length | 270 ft |
| Year Completed | 1965 (61 years old) |
Storage & Hydraulics
| NID Storage | 52 acre-ft |
| Max Storage | 52 acre-ft |
| Normal Storage | 30 acre-ft |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | Larry Hiland |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 04/08/2024 |
| Emergency Action Plan | No |
Identifiers
| NID ID | IL01167 |
| Federal ID | IL01167 |
| More Info | State Dam Safety Program |