Tonderum Dam
Key Takeaway
Tonderum Dam is classified as low hazard in Iowa. It was completed in 1970 and is 56 years old. Its primary use is fire protection.
Physical Details
| Dam Height | 21 ft (taller than 8.8% in IA) |
| Dam Length | 245 ft |
| Dam Type | Earth |
| Max Storage | 69 acre-ft |
| Normal Storage | 34 acre-ft |
| Surface Area | 5 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 0 cfs |
| Year Completed | 1970 (56 years old) |
| NID ID | IA01509 |
Safety Information
No probable loss of human life and low economic/environmental losses expected.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
Olvin Tonderum
Private
Nearby Dams
Frequently Asked Questions
What is the hazard classification of Tonderum Dam?
Tonderum Dam is classified as Low Hazard. No probable loss of human life and low economic/environmental losses expected. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates Tonderum Dam?
Tonderum Dam is owned by Olvin Tonderum (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Tonderum Dam built?
Tonderum Dam was completed in 1970, making it 56 years old. Many U.S. dams were built between the 1930s and 1970s during a period of major infrastructure investment.
What is the primary purpose of Tonderum Dam?
Tonderum Dam serves the following purposes: Fire Protection, Stock, Or Small Fish Pond. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Tonderum Dam?
Tonderum Dam has a dam height of 21 ft. Dam height is measured from the natural streambed at the downstream toe to the top of the dam, and may differ from the visible height.