Harden Lake
Harden Lake is an earth dam located in Adair County, Missouri, built in 1996. It carries a Low hazard potential classification.
About Harden Lake
The primary purpose of Harden Lake 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 Larry And Harold Harden (private). It impounds the Tr-walnut Creek near Pure Air.
The dam stands 30 feet tall and stretches 495 feet across, creates a reservoir covering 16 acres, has a maximum storage capacity of 47 acre-feet, and collects water from a drainage area of 257 square miles. Completed in 1996, the structure is 30 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 | Missouri |
| County | Adair |
| Nearest City | Pure Air |
| River/Stream | Tr-walnut Creek |
| Coordinates | 40.17216, -92.81668 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 30 ft |
| Dam Height | 30 ft |
| Dam Length | 495 ft |
| Year Completed | 1996 (30 years old) |
Storage & Hydraulics
| NID Storage | 47 acre-ft |
| Max Storage | 47 acre-ft |
| Normal Storage | 30 acre-ft |
| Surface Area | 16 acres |
| Drainage Area | 257 sq mi |
| Max Discharge | 28 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Grade Stabilization |
| Owner | LARRY AND HAROLD HARDEN |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not Rated |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MO50684 |
| Federal ID | MO50684 |
| More Info | State Dam Safety Program |