Lake Montowese Dam
High HazardSatisfactory ConditionEmergency Action Plan: Yes
Location
| State | Missouri |
| County | Jefferson |
| Nearest City | TIMES BEACH |
| River/Stream | TR BIG RIVER |
| Coordinates | 38.43779, -90.56516 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 54 ft |
| Dam Height | 54 ft |
| Dam Length | 1,000 ft |
| Year Completed | 1942 (84 years old) |
Storage & Hydraulics
| NID Storage | 800 acre-ft |
| Max Storage | 800 acre-ft |
| Normal Storage | 606 acre-ft |
| Surface Area | 48 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 1,740 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | LAKE MONTOWESE CORP |
| Owner Type | Private |
| Hazard Classification | High |
| Condition Assessment | Satisfactory |
| Last Inspection | 09/01/2022 |
| Emergency Action Plan | Yes |