Swan Dam is an earth dam located in Jefferson County, Iowa, built in 2004. It carries a Low hazard potential classification.
Dam profile
NID height · 22 ft22 ft tall and 535 ft long. 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 Swan Dam
The primary purpose of Swan 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 Terry Swan (private). It impounds the Tr-lick Creek near Kilbourn.
The dam stands 22 feet tall and stretches 535 feet across, creates a reservoir covering 9 acres, has a maximum storage capacity of 126 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 2004, 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 | Jefferson |
| Nearest City | Kilbourn |
| River/Stream | Tr-lick Creek |
| Coordinates | 40.92920, -92.09140 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 22 ft |
| Dam Height | 22 ft |
| Dam Length | 535 ft |
| Year Completed | 2004 (22 years old) |
Storage & Hydraulics
| NID Storage | 126 acre-ft |
| Max Storage | 126 acre-ft |
| Normal Storage | 46 acre-ft |
| Surface Area | 9 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 97 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Grade Stabilization |
| Owner | Terry Swan |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | IA04046 |
| Federal ID | IA04046 |
| More Info | State Dam Safety Program |