Jawbone Dike #1 is a critical flood risk reduction structure located in Wheatland County, Montana, along Jawbone Creek.
Wind
Humidity
Built in 1966, this earth dam stands at a height of 13 feet and spans 780 feet in length, providing storage of 1,933 acre-feet of water. The dam is regulated by the Department of Natural Resources and Conservation (DNRC) in Montana and is classified as having a high hazard potential due to its location and function.
Despite its age, Jawbone Dike #1 is in satisfactory condition and undergoes regular inspections every five years to ensure its continued effectiveness in mitigating flood risks in the area. The dam features an uncontrolled spillway with a width of 20 feet and a maximum discharge capacity of 140 cubic feet per second. With a drainage area of 1.97 square miles, the dam serves as a crucial infrastructure for protecting the surrounding community of Harlowton from potential flooding events.
As water resource and climate enthusiasts, it is important to recognize the role of structures like Jawbone Dike #1 in managing and reducing the impacts of extreme weather events on local communities. By understanding the design, purpose, and condition of such infrastructure, we can better appreciate the efforts made to safeguard water resources and enhance resilience to changing climate conditions.
Year Completed |
1966 |
Dam Length |
780 |
Dam Height |
13 |
River Or Stream |
JAWBONE CREEK |
Primary Dam Type |
Earth |
Hydraulic Height |
13 |
Drainage Area |
1.97 |
Nid Storage |
1933 |
Outlet Gates |
None |
Hazard Potential |
High |
Foundations |
Rock |
Nid Height |
13 |