Darbyshire Dam is an earth dam located in Henry County, Iowa, built in 2009. It carries a Low hazard potential classification.
Dam profile
NID height · 31 ft31 ft tall and 170 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 Darbyshire Dam
The primary purpose of Darbyshire 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 Don Darbyshire (private). It impounds the Tributary of MUD Creek near Augusta, Ia.
The dam stands 31 feet tall and stretches 170 feet across, creates a reservoir covering 2 acres, has a maximum storage capacity of 23 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 2009, the structure is relatively new.
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.
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Location
| State | Iowa |
| County | Henry |
| Nearest City | Augusta, Ia |
| River/Stream | Tributary of MUD Creek |
| Coordinates | 40.89650, -91.41610 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 31 ft |
| Dam Height | 31 ft |
| Dam Length | 170 ft |
| Year Completed | 2009 (17 years old) |
Storage & Hydraulics
| NID Storage | 23 acre-ft |
| Max Storage | 23 acre-ft |
| Normal Storage | 14 acre-ft |
| Surface Area | 2 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 10 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Grade Stabilization |
| Owner | Don Darbyshire |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | IA04247 |
| Federal ID | IA04247 |
| More Info | State Dam Safety Program |