Big Creek Watershed Structure 9 Dam, located in Ellisville, Mississippi, is a key flood risk reduction infrastructure designed by USDA NRCS in 1975.
Wind
Humidity
This earth dam stands at a height of 30 feet and spans 1190 feet along Reed Brake Creek, with a storage capacity of 1547 acre-feet. Despite its critical purpose, the dam is currently assessed as being in poor condition, with a high hazard potential.
Managed by the Mississippi Department of Environmental Quality, the dam is state-regulated and inspected regularly to ensure public safety. The structure, classified as a buttress type earth dam with uncontrolled spillways, presents a moderate risk level and follows a five-year inspection frequency. With a drainage area of 2.59 square miles, the dam plays a crucial role in managing water resources in the region and highlights the importance of maintaining and upgrading aging infrastructure to adapt to changing climate conditions and prevent potential disasters.
Year Completed |
1975 |
Dam Length |
1190 |
Dam Height |
30 |
River Or Stream |
REED BRAKE CREEK |
Primary Dam Type |
Earth |
Drainage Area |
2.59 |
Nid Storage |
1547 |
Outlet Gates |
Uncontrolled |
Hazard Potential |
High |
Foundations |
Soil |
Nid Height |
30 |
Leaf River Nr Collins
|
190cfs |
Tallahala Creek At Laurel
|
17cfs |
Okatoma Creek At Sanford
|
127cfs |
Tallahala Creek At Waldrup
|
164cfs |
Bouie Creek Nr Hattiesburg
|
162cfs |
Leaf River At Hattiesburg
|
747cfs |