Mohawk Dam, located in Jefferson Township, Coshocton County, Ohio northwest of Nellie, is a dry dam constructed by the United States Army Corps of Engineers (USACE) in the mid-1930s for the purpose of flood control on the Walhonding River.

[3] The MWCD estimates that if the Mohawk Dam were to fail during a flood, the water normally held back could cost 307 people their lives and up to $449 million in property damage.

A rehabilitation and repair plan to stabilize the structure has not yet been established, nor has an official cost-estimate been prepared.

Funds were set aside by Congress in 2006 and 2007 to analyze the current state of the dam and gather data for a rehabilitation report.

The MWCD serves as the local sponsor of the rehabilitation projects and must pay 3.45 percent of the costs.