Sioux Power Plant Dam
Sioux Power Plant Dam is an other dam located in St. Charles County, Missouri. It carries a High hazard potential classification.
About Sioux Power Plant Dam
Sioux Power Plant Dam is a dam in St. Charles, Missouri. The dam is public utility-owned. It impounds the T Mississippi near Portage Des Sioux.
The dam stands 21 feet tall and stretches 12,000 feet across, creates a reservoir covering 204 acres, has a maximum storage capacity of 14,039 acre-feet, and collects water from a drainage area of 204 square miles.
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. An emergency action plan is in place for this dam.
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 | St. Charles |
| Nearest City | Portage Des Sioux |
| River/Stream | T Mississippi |
| Coordinates | 38.90237, -90.29455 |
Physical Characteristics
| Dam Type | Other |
| NID Height | 21 ft |
| Dam Height | 21 ft |
| Dam Length | 12,000 ft |
Storage & Hydraulics
| NID Storage | 14,039 acre-ft |
| Max Storage | 14,039 acre-ft |
| Normal Storage | 14,039 acre-ft |
| Surface Area | 204 acres |
| Drainage Area | 204 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Owner Type | Public Utility |
| Hazard Classification | High |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | MO40160 |
| Federal ID | MO40160 |
| More Info | State Dam Safety Program |