Milne Creek Weir Dam is a concrete dam located in Will County, Illinois. It carries a Low hazard potential classification.
Dam profile
NID height · 7 ft7 ft tall and 330 ft long. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic concrete gravity section and the water level is illustrative.
About Milne Creek Weir Dam
The primary purpose of Milne Creek Weir Dam is flood risk reduction. The dam is designed to control downstream flooding by temporarily storing excess water during storms and releasing it at a controlled rate. The dam is owned by Lago Vista Master Homeowner's Associatio (private). It impounds the Milne Creek near Lockport.
The dam stands 7 feet tall and stretches 330 feet across, has a maximum storage capacity of 57 acre-feet, and collects water from a drainage area of 0 square miles.
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 11/18/2022.
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Location
| State | Illinois |
| County | Will |
| Nearest City | Lockport |
| River/Stream | Milne Creek |
| Coordinates | 41.57973, -88.03398 |
Physical Characteristics
| Dam Type | Concrete |
| NID Height | 7 ft |
| Dam Height | 7 ft |
| Dam Length | 330 ft |
Storage & Hydraulics
| NID Storage | 57 acre-ft |
| Max Storage | 57 acre-ft |
| Drainage Area | 0 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | Lago Vista Master Homeowner's Associatio |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 11/18/2022 |
| Emergency Action Plan | No |
Identifiers
| NID ID | IL55073 |
| Federal ID | IL55073 |
| More Info | State Dam Safety Program |