Upper Hocking WS Site R-33 is a flood risk reduction structure located in Lancaster, Ohio, along a tributary of the Hocking River.
Wind
Humidity
Built in 1960 by the USDA NRCS, this earth dam stands at a height of 29 feet and spans 400 feet in length, with a storage capacity of 62 acre-feet. Despite its low hazard potential, the dam has a moderate risk assessment rating of 3, indicating the need for ongoing monitoring and maintenance.
The dam's primary purpose is flood risk reduction, serving the local community and surrounding areas by helping to manage water levels during periods of high discharge. The dam features an uncontrolled spillway and outlet gates, with a maximum discharge of 1260 cubic feet per second. While the structure has not been rated for condition assessment, it undergoes inspections every 5 years to ensure its continued safety and effectiveness in mitigating flood risks in the region.
Managed by the Natural Resources Conservation Service, Upper Hocking WS Site R-33 plays a crucial role in protecting the local environment and infrastructure from the impacts of flooding. As climate change continues to pose challenges to water resources management, structures like this dam are essential for enhancing resilience and safeguarding communities against the growing threats of extreme weather events.
Year Completed |
1960 |
Dam Length |
400 |
Dam Height |
29 |
River Or Stream |
TRIB OF HOCKING RIVER |
Primary Dam Type |
Earth |
Surface Area |
2 |
Hydraulic Height |
29 |
Drainage Area |
0.31 |
Nid Storage |
62 |
Outlet Gates |
Uncontrolled |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
29 |