Lake Sainte Louise Dam
High HazardSatisfactory ConditionEmergency Action Plan: Yes
Location
| State | Missouri |
| County | St. Charles |
| Nearest City | O'FALLON |
| River/Stream | BRANCH PERUQUE CREEK |
| Coordinates | 38.80038, -90.79054 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 52 ft |
| Dam Height | 52 ft |
| Dam Length | 790 ft |
| Year Completed | 1967 (59 years old) |
Storage & Hydraulics
| NID Storage | 1,420 acre-ft |
| Max Storage | 1,420 acre-ft |
| Normal Storage | 1,170 acre-ft |
| Surface Area | 70 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 2,544 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | LAKE SAINT LOUIS COMM. |
| Owner Type | Private |
| Hazard Classification | High |
| Condition Assessment | Satisfactory |
| Last Inspection | 08/02/2022 |
| Emergency Action Plan | Yes |