Asarco Lake Dam
Asarco Lake Dam is an earth dam located in Iron County, Missouri, built in 1971. It carries a High hazard potential classification and has a satisfactory condition assessment.
About Asarco Lake Dam
The primary purpose of Asarco 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 The Doe Run Company (private). It impounds the Tributary To Big Creek near Glover.
The dam stands 51 feet tall and stretches 700 feet across, creates a reservoir covering 34 acres, has a maximum storage capacity of 2,056 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1971, the structure is well into its service life at over 50 years old.
This dam carries a high hazard potential classification, which means that a failure or uncontrolled release of water would likely cause loss of human life. This classification reflects the consequences of failure, not the likelihood — it indicates that people live or work in the area downstream. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. An emergency action plan is in place for this dam. The most recent inspection on record was 03/02/2021.
At 51 feet, this dam is taller than 93% of dams nationwide.
Living Downstream
If you live or work downstream of this dam, consider taking these steps: learn your local evacuation routes, check whether your county emergency management office has a dam failure inundation map, and sign up for local emergency alerts. The Missouri dam safety program can provide more specific information about emergency planning for this structure.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | Missouri |
| County | Iron |
| Nearest City | Glover |
| River/Stream | Tributary To Big Creek |
| Coordinates | 37.49142, -90.68683 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 51 ft |
| Dam Height | 50 ft |
| Dam Length | 700 ft |
| Year Completed | 1971 (55 years old) |
Storage & Hydraulics
| NID Storage | 2,056 acre-ft |
| Max Storage | 2,056 acre-ft |
| Normal Storage | 2,056 acre-ft |
| Surface Area | 34 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 1,080 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Water Supply |
| Owner | THE DOE RUN COMPANY |
| Owner Type | Private |
| Hazard Classification | High |
| Condition Assessment | Satisfactory |
| Last Inspection | 03/02/2021 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | MO30216 |
| Federal ID | MO30216 |
| More Info | State Dam Safety Program |