Gross Dam
Key Takeaway
Gross Dam is classified as low hazard in Iowa. It was completed in 1975 and is 51 years old. Its primary use is fire protection.
Physical Details
| Dam Height | 25 ft (taller than 19.3% in IA) |
| Dam Length | 580 ft |
| Dam Type | Earth |
| Max Storage | 43 acre-ft |
| Normal Storage | 18 acre-ft |
| Surface Area | 3 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 0 cfs |
| Year Completed | 1975 (51 years old) |
| NID ID | IA01717 |
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
Alban Gross
Private
Nearby Dams
Gross/Freund Dam
Shelby, IA
Low Hazard 41 ftMill Picayune Watershed Site M-22-3
Shelby, IA
Significant Hazard 37 ftMill Picayune Watershed Site M-24-12
Shelby, IA
Low Hazard 37 ftMill Picayune Watershed Site M-22-12
Shelby, IA
Low Hazard 45 ftNorth Panama Dam
Shelby, IA
Low Hazard 20 ftIowa Noname47
Shelby, IA
Low Hazard 23 ftMill Picayune Watershed Site M-24-6
Shelby, IA
Low Hazard 38 ftMill Picayune Watershed Site M-24-5
Shelby, IA
Low Hazard 51 ftFrequently Asked Questions
What is the hazard classification of Gross Dam?
Gross 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 Gross Dam?
Gross Dam is owned by Alban Gross (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Gross Dam built?
Gross Dam was completed in 1975, making it 51 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 Gross Dam?
Gross 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 Gross Dam?
Gross Dam has a dam height of 25 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.