Senecaville Lake is a reservoir in Guernsey and Noble Counties, Ohio. It is located approximately southeast of Cambridge near the village of Senecaville, Ohio. The lake is popular among recreation and fishing enthusiasts. It is often referred to locally as Seneca Lake.HistorySenecaville Dam was built in 1937 by the U.S. Army Corps of Engineers as part of the Muskingum Watershed Conservancy District's flood control and water conservation project. The Seneca Fork of Wills Creek valley was dammed to create a flood control and water conservation reservoir. The reservoir presently forms a conservation pool for flood control, recreation, fish and wildlife, and for the maintenance of normal downstream flows during dry periods.Senecaville DamThe Senecaville Dam is located at the northwest end of the lake near the village of Senecaville. Originally completed in 1937, the structure was modified in 1982. The dam is made of earthen construction and measures high by long. The core is homogeneous earth with a foundation of rock and soil. The Dam is separated into two embankment sections, North and South, by a rock knoll, through which the outlet works is located and across a low dike constructed section. Maximum discharge is 11400 cubic feet per second. Its capacity is. Normal storage is. It drains an area of 118sqmi.
