Ken Southworth Jr. Dam is an earth dam located in Dubuque County, Iowa, built in 2014. It carries a Low hazard potential classification.
Dam profile
NID height · 36 ft36 ft tall and 260 ft long, taller than 82% 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 Ken Southworth Jr. Dam
The primary purpose of Ken Southworth Jr. 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 Ken Southworth Jr (private). It impounds the Unnamed Tributary to Little Maquoketa River near Durango.
The dam stands 36 feet tall and stretches 260 feet across, creates a reservoir covering 2 acres, has a maximum storage capacity of 24 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 2014, 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.
At 36 feet, this dam is taller than 82% of dams nationwide.
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Location
| State | Iowa |
| County | Dubuque |
| Nearest City | Durango |
| River/Stream | Unnamed Tributary to Little Maquoketa River |
| Coordinates | 42.51760, -90.88690 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 36 ft |
| Dam Height | 36 ft |
| Dam Length | 260 ft |
| Year Completed | 2014 (12 years old) |
Storage & Hydraulics
| NID Storage | 24 acre-ft |
| Max Storage | 24 acre-ft |
| Normal Storage | 10 acre-ft |
| Surface Area | 2 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 12 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Grade Stabilization |
| Owner | Ken Southworth Jr |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | IA04215 |
| Federal ID | IA04215 |
| More Info | State Dam Safety Program |