Greene County Roadgrade Dam 28-85-32
Greene County Roadgrade Dam 28-85-32 is an earth dam located in Greene County, Iowa, built in 1986. It carries a Low hazard potential classification.
About Greene County Roadgrade Dam 28-85-32
Greene County Roadgrade Dam 28-85-32 is a dam in Greene, Iowa. The dam is owned by Greene County Board Of Supervisors (local government). It impounds the Tr- Cedar Creek near Jefferson.
The dam stands 30 feet tall and stretches 620 feet across, creates a reservoir covering 3 acres, has a maximum storage capacity of 140 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 1986, the structure is 40 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 | Iowa |
| County | Greene |
| Nearest City | Jefferson |
| River/Stream | Tr- Cedar Creek |
| Coordinates | 42.13950, -94.58580 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 30 ft |
| Dam Height | 30 ft |
| Dam Length | 620 ft |
| Year Completed | 1986 (40 years old) |
Storage & Hydraulics
| NID Storage | 140 acre-ft |
| Max Storage | 140 acre-ft |
| Normal Storage | 33 acre-ft |
| Surface Area | 3 acres |
| Drainage Area | 1 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Other |
| Owner | Greene County Board of Supervisors |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Not Rated |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | IA02479 |
| Federal ID | IA02479 |
| More Info | State Dam Safety Program |