Tonderum Dam
Tonderum Dam is an earth dam located in Emmet County, Iowa, built in 1970. It carries a Low hazard potential classification.
About Tonderum Dam
The primary purpose of Tonderum Dam is fire protection, stock, or small fish pond. The dam maintains a small impoundment used for fire suppression, livestock watering, or as a fish pond. The dam is owned by Olvin Tonderum (private). It impounds the Tr- East Fork Des Moines R near Armstrong.
The dam stands 21 feet tall and stretches 245 feet across, creates a reservoir covering 4 acres, has a maximum storage capacity of 69 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1970, the structure is well into its service life at over 50 years old.
This dam has a low hazard potential classification, meaning that failure would cause minimal damage, limited primarily to the dam owner's property, with no expected loss of life.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | Iowa |
| County | Emmet |
| Nearest City | Armstrong |
| River/Stream | Tr- East Fork Des Moines R |
| Coordinates | 43.41270, -94.53420 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 21 ft |
| Dam Height | 21 ft |
| Dam Length | 245 ft |
| Year Completed | 1970 (56 years old) |
Storage & Hydraulics
| NID Storage | 69 acre-ft |
| Max Storage | 69 acre-ft |
| Normal Storage | 34 acre-ft |
| Surface Area | 4 acres |
| Drainage Area | 0 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Fire Protection, Stock, Or Small Fish Pond |
| Owner | Olvin Tonderum |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not Rated |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | IA01509 |
| Federal ID | IA01509 |
| More Info | State Dam Safety Program |