Wappapello Dam - Saddle Dike 1
Wappapello Dam - Saddle Dike 1 is an earth dam located in Wayne County, Missouri, built in 1941. It carries a Significant hazard potential classification.
About Wappapello Dam - Saddle Dike 1
The primary purpose of Wappapello Dam - Saddle Dike 1 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 Usace - St. Louis District (federal). It impounds the St. Francis near Wappapello.
The dam stands 114 feet tall and stretches 380 feet across, creates a reservoir covering 23,200 acres, has a maximum storage capacity of 1,134,600 acre-feet, and collects water from a drainage area of 1,310 square miles. Completed in 1941, the structure is well-established, with more than 75 years of service.
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. An emergency action plan is in place for this dam. The most recent inspection on record was 03/02/2017.
At 114 feet, this dam is taller than 98% of all dams in the United States.
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Location
| State | Missouri |
| County | Wayne |
| Nearest City | Wappapello |
| River/Stream | St. Francis |
| Coordinates | 36.93977, -90.27746 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 114 ft |
| Dam Height | 13 ft |
| Dam Length | 380 ft |
| Year Completed | 1941 (85 years old) |
Storage & Hydraulics
| NID Storage | 1,134,600 acre-ft |
| Max Storage | 1,134,600 acre-ft |
| Normal Storage | 613,200 acre-ft |
| Surface Area | 23,200 acres |
| Drainage Area | 1,310 sq mi |
| Spillway Type | None |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | USACE - St. Louis District |
| Owner Type | Federal |
| Hazard Classification | Significant |
| Condition Assessment | Not Available |
| Last Inspection | 03/02/2017 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | MO30204 |
| Federal ID | MO30204S001 |
| More Info | State Dam Safety Program |