Long Dam is an earth dam located in Warren County, Iowa, built in 1967. It carries a Low hazard potential classification.
Dam profile
NID height · 41 ft41 ft tall and 317 ft long, taller than 87% of U.S. dams with a recorded height. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic embankment section and the water level is illustrative.
About Long Dam
The primary purpose of Long 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 John W Long (private). It impounds the Tr-south River near Red Rock Reservoir.
The dam stands 41 feet tall and stretches 317 feet across, creates a reservoir covering 3 acres, has a maximum storage capacity of 49 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1967, 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. The most recent inspection on record was 07/20/1977. That was over 49 years ago.
At 41 feet, this dam is taller than 87% 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 | Warren |
| Nearest City | Red Rock Reservoir |
| River/Stream | Tr-south River |
| Coordinates | 41.28840, -93.57020 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 41 ft |
| Dam Height | 41 ft |
| Dam Length | 317 ft |
| Year Completed | 1967 (59 years old) |
Storage & Hydraulics
| NID Storage | 49 acre-ft |
| Max Storage | 49 acre-ft |
| Normal Storage | 41 acre-ft |
| Surface Area | 3 acres |
| Drainage Area | 0 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Fire Protection, Stock, Or Small Fish Pond |
| Owner | John W Long |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 07/20/1977 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | IA01128 |
| Federal ID | IA01128 |
| More Info | State Dam Safety Program |