Maas Dam
Maas Dam is an earth dam located in Fulton County, Illinois, built in 1999. It carries a Low hazard potential classification.
About Maas Dam
The primary purpose of Maas Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Paul Maas (private). It impounds the Trib Little Coal Creek near Ellisville.
The dam stands 60 feet tall and stretches 700 feet across, creates a reservoir covering 7 acres, has a maximum storage capacity of 195 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1999, the structure is 27 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 05/27/2022.
At 60 feet, this dam is taller than 95% of all dams in the United States.
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Location
| State | Illinois |
| County | Fulton |
| Nearest City | Ellisville |
| River/Stream | Trib Little Coal Creek |
| Coordinates | 40.63164, -90.23542 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 60 ft |
| Dam Height | 60 ft |
| Dam Length | 700 ft |
| Year Completed | 1999 (27 years old) |
Storage & Hydraulics
| NID Storage | 195 acre-ft |
| Max Storage | 195 acre-ft |
| Normal Storage | 156 acre-ft |
| Surface Area | 7 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 480 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | PAUL MAAS |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not Available |
| Last Inspection | 05/27/2022 |
| Emergency Action Plan | No |
Identifiers
| NID ID | IL50437 |
| Federal ID | IL50437 |
| More Info | State Dam Safety Program |