Holm Dam
Holm Dam is an earth dam located in Madison County, Iowa, built in 1972. It carries a Low hazard potential classification.
About Holm Dam
The primary purpose of Holm 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 Luther Holm (private). It impounds the Tr-fletcher Branch near Patterson.
The dam stands 36 feet tall and stretches 580 feet across, creates a reservoir covering 8 acres, has a maximum storage capacity of 112 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1972, 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.
At 36 feet, this dam is taller than 83% of dams nationwide.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | Iowa |
| County | Madison |
| Nearest City | Patterson |
| River/Stream | Tr-fletcher Branch |
| Coordinates | 41.28000, -94.09150 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 36 ft |
| Dam Height | 36 ft |
| Dam Length | 580 ft |
| Year Completed | 1972 (54 years old) |
Storage & Hydraulics
| NID Storage | 112 acre-ft |
| Max Storage | 112 acre-ft |
| Normal Storage | 70 acre-ft |
| Surface Area | 8 acres |
| Drainage Area | 0 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Fire Protection, Stock, Or Small Fish Pond |
| Owner | Luther Holm |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not Rated |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | IA00609 |
| Federal ID | IA00609 |
| More Info | State Dam Safety Program |