Thunder Hole Dam
April 30, 2024
Located in Matherton, Clinton County, Michigan, Thunder Hole Dam, also known as Keith Wright Pond, is a privately owned structure designed by USDA NRCS with a primary purpose of recreation. Completed in 1966, this earth dam stands at 26 feet in height and stretches 270 feet in length, holding a maximum storage capacity of 91 acre-feet. The dam, situated on a tributary to the Maple River, serves as a controlled spillway with a width of 116 feet and a low hazard potential.
Maintained by the Michigan DEGLE, Thunder Hole Dam has a satisfactory condition assessment as of May 2006, with an inspection frequency of 5 years. The dam poses a very high risk according to the Risk Assessment and is under state regulation, permitting, inspection, and enforcement. With a surface area of 8 acres and a drainage area of 0.98 square miles, the dam provides not only recreational opportunities but also important water resource management functions in the region.
Enthusiasts of water resources and climate will find Thunder Hole Dam an intriguing structure with a rich history in the heart of Michigan. Its design by USDA NRCS, state regulation, and recreational purpose make it a unique and significant part of the local landscape. As a low-hazard dam with a controlled spillway and satisfactory condition, Thunder Hole Dam continues to serve its community while also being a focal point for water management efforts in the region.
| Year_Completed | 1966 |
| Dam_Height | 26 |
| River_Or_Stream | Tributary to Maple River |
| Dam_Length | 270 |
| Primary_Dam_Type | Earth |
| Surface_Area | 8 |
| Hydraulic_Height | 26 |
| Drainage_Area | 0.98 |
| Nid_Storage | 91 |
| Structural_Height | 26 |
| Hazard_Potential | Low |
| Nid_Height | 26 |
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