Lucas County Roadgrade Dam (l-1) is an earth dam located in Lucas County, Iowa, built in 1989. It carries a Low hazard potential classification.
Dam profile
NID height · 49 ft49 ft tall and 1,240 ft long, taller than 92% of U.S. dams with a recorded height. Height is drawn to scale against a ten-story building, about 100 ft; the profile is a generic embankment section and the water level is illustrative.
About Lucas County Roadgrade Dam (l-1)
Lucas County Roadgrade Dam (l-1) is a dam in Lucas, Iowa. The dam is owned by Lucas County Board of Supervisors (private). It impounds the Tr- Chariton River near Chariton.
The dam stands 49 feet tall and stretches 1,240 feet across, creates a reservoir covering 16 acres, has a maximum storage capacity of 860 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 1989, the structure is 37 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.
At 49 feet, this dam is taller than 92% of dams nationwide.
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Location
| State | Iowa |
| County | Lucas |
| Nearest City | Chariton |
| River/Stream | Tr- Chariton River |
| Coordinates | 41.03590, -93.31720 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 49 ft |
| Dam Height | 49 ft |
| Dam Length | 1,240 ft |
| Year Completed | 1989 (37 years old) |
Storage & Hydraulics
| NID Storage | 860 acre-ft |
| Max Storage | 860 acre-ft |
| Normal Storage | 111 acre-ft |
| Surface Area | 16 acres |
| Drainage Area | 1 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Other |
| Owner | Lucas County Board of Supervisors |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | IA02471 |
| Federal ID | IA02471 |
| More Info | State Dam Safety Program |