Hematite Lake Dam
Hematite Lake Dam is a gravity dam located in St. Francois County, Missouri, built in 1944. It carries a Low hazard potential classification.
About Hematite Lake Dam
The primary purpose of Hematite Lake Dam is water supply. The dam stores water for municipal, industrial, or agricultural use, helping ensure a reliable supply for the surrounding area. The dam is owned by Hanna Mining Co (private). It impounds the St Francois River near Knob Lick.
The dam stands 24 feet tall, creates a reservoir covering 220 acres, has a maximum storage capacity of 2,825 acre-feet, and collects water from a drainage area of 10,250 square miles. Completed in 1944, 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.
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Location
| State | Missouri |
| County | St. Francois |
| Nearest City | Knob Lick |
| River/Stream | St Francois River |
| Coordinates | 37.73125, -90.63354 |
Physical Characteristics
| Dam Type | Gravity |
| NID Height | 24 ft |
| Dam Height | 24 ft |
| Year Completed | 1944 (82 years old) |
Storage & Hydraulics
| NID Storage | 2,825 acre-ft |
| Max Storage | 2,825 acre-ft |
| Normal Storage | 1,760 acre-ft |
| Surface Area | 220 acres |
| Drainage Area | 10,250 sq mi |
Ownership & Safety
| Purpose | Water Supply |
| Owner | HANNA MINING CO |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not Rated |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MO30001 |
| Federal ID | MO30001 |
| More Info | State Dam Safety Program |