Martinsville Pond Dam is an earth dam located in Clark County, Illinois, built in 1910. It carries a Significant hazard potential classification.
Dam profile
NID height · 6 ft6 ft tall and 200 ft long. 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 Martinsville Pond Dam
The primary purpose of Martinsville Pond Dam is fish and wildlife pond. The dam creates habitat for fish and wildlife, supporting local ecosystems and potentially serving conservation goals. The dam is owned by Marathon Pipe Line LLC (private). It impounds the North Fork Embarras River near Martinsville.
The dam stands 6 feet tall and stretches 200 feet across, creates a reservoir covering 5 acres, has a maximum storage capacity of 60 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1910, the structure is over a century 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. The most recent inspection on record was 07/08/2020.
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Location
| State | Illinois |
| County | Clark |
| Nearest City | Martinsville |
| River/Stream | North Fork Embarras River |
| Coordinates | 39.32511, -87.89511 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 6 ft |
| Dam Height | 6 ft |
| Dam Length | 200 ft |
| Year Completed | 1910 (116 years old) |
Storage & Hydraulics
| NID Storage | 60 acre-ft |
| Max Storage | 60 acre-ft |
| Normal Storage | 45 acre-ft |
| Surface Area | 5 acres |
| Drainage Area | 0 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Fish and Wildlife Pond |
| Owner | Marathon Pipe Line LLC |
| Owner Type | Private |
| Hazard Classification | Significant |
| Condition Assessment | Not assessed |
| Last Inspection | 07/08/2020 |
| Emergency Action Plan | No |
Identifiers
| NID ID | IL50651 |
| Federal ID | IL50651 |
| More Info | State Dam Safety Program |