Jefferson County Roadgrade Dam 25-73-10
Jefferson County Roadgrade Dam 25-73-10 is an earth dam located in Jefferson County, Iowa, built in 2005. It carries a Low hazard potential classification.
About Jefferson County Roadgrade Dam 25-73-10
The primary purpose of Jefferson County Roadgrade Dam 25-73-10 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 Jefferson County (local government). It impounds the Tr- South Walnut Creek near Rome.
The dam stands 28 feet tall and stretches 465 feet across, creates a reservoir covering 3 acres, has a maximum storage capacity of 45 acre-feet, and collects water from a drainage area of 19 square miles. Completed in 2005, 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 | Rome |
| River/Stream | Tr- South Walnut Creek |
| Coordinates | 41.09920, -91.95470 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 28 ft |
| Dam Height | 28 ft |
| Dam Length | 465 ft |
| Year Completed | 2005 (21 years old) |
Storage & Hydraulics
| NID Storage | 45 acre-ft |
| Max Storage | 45 acre-ft |
| Normal Storage | 17 acre-ft |
| Surface Area | 3 acres |
| Drainage Area | 19 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Grade Stabilization |
| Owner | Jefferson County |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Not Rated |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | IA03701 |
| Federal ID | IA03701 |
| More Info | State Dam Safety Program |