Gerlach Dam is an earth dam located in Buena Vista County, Iowa, built in 1978. It carries a Low hazard potential classification.
Dam profile
NID height · 31 ft31 ft tall and 265 ft long, taller than 72% 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 Gerlach Dam
The primary purpose of Gerlach 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 Duane Gerlach (private). It impounds the Tr-cottonwood Creek near Linn Grove.
The dam stands 31 feet tall and stretches 265 feet across, creates a reservoir covering 2 acres, has a maximum storage capacity of 47 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1978, the structure is 48 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 | Buena Vista |
| Nearest City | Linn Grove |
| River/Stream | Tr-cottonwood Creek |
| Coordinates | 42.87630, -95.33320 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 31 ft |
| Dam Height | 31 ft |
| Dam Length | 265 ft |
| Year Completed | 1978 (48 years old) |
Storage & Hydraulics
| NID Storage | 47 acre-ft |
| Max Storage | 47 acre-ft |
| Normal Storage | 24 acre-ft |
| Surface Area | 2 acres |
| Drainage Area | 0 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Fire Protection, Stock, Or Small Fish Pond |
| Owner | Duane Gerlach |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | IA02103 |
| Federal ID | IA02103 |
| More Info | State Dam Safety Program |