Nelson Dam
Nelson Dam is an earth dam located in Clay County, Iowa, built in 1999. It carries a Low hazard potential classification.
About Nelson Dam
The primary purpose of Nelson Dam is grade stabilization. Grade stabilization dams prevent erosion by reducing the slope and velocity of water flowing through a channel. They're commonly used to stop gullies from deepening and to protect downstream land and infrastructure. The dam is owned by David Nelson (private). It impounds the Tr-elk Creek near Gillett Grove.
The dam stands 26 feet tall and stretches 314 feet across, creates a reservoir covering 3 acres, has a maximum storage capacity of 37 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1999, the structure is 27 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 | Clay |
| Nearest City | Gillett Grove |
| River/Stream | Tr-elk Creek |
| Coordinates | 43.05110, -94.99560 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 26 ft |
| Dam Height | 26 ft |
| Dam Length | 314 ft |
| Year Completed | 1999 (27 years old) |
Storage & Hydraulics
| NID Storage | 37 acre-ft |
| Max Storage | 37 acre-ft |
| Normal Storage | 17 acre-ft |
| Surface Area | 3 acres |
| Drainage Area | 0 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Grade Stabilization |
| Owner | David Nelson |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not Rated |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | IA03921 |
| Federal ID | IA03921 |
| More Info | State Dam Safety Program |