Mathes
Low HazardPoor ConditionEmergency Action Plan: Yes
Location
| State | Iowa |
| County | Des Moines |
| Nearest City | Ft. Madison |
| River/Stream | Long Creek |
| Coordinates | 40.78164, -91.25241 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 64 ft |
| Dam Height | 64 ft |
| Dam Length | 1,120 ft |
| Year Completed | 1941 (85 years old) |
Storage & Hydraulics
| NID Storage | 1,440 acre-ft |
| Max Storage | 1,440 acre-ft |
| Normal Storage | 1,220 acre-ft |
| Surface Area | 74 acres |
| Max Discharge | 15,000 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | Iowa Army Ammunition Plant |
| Owner Type | Federal |
| Hazard Classification | Low |
| Condition Assessment | Poor |
| Last Inspection | 10/11/2016 |
| Emergency Action Plan | Yes |