The flooding has prompted the evacuation of the Kil-So-Quah campground. It will be closed until further notice. The DNR also said boat ramps on the lake are impacted.
The FWA staff and US Army Corps of Engineers are monitoring conditions and working together to keep the public safe.
J.E. Roush Lake, man-made in 1967, is part of a unit with Mississinewa and Salamonie Lakes to control flooding along the Wabash River Basin. It also works with other lakes downstream to prevent flooding in the lower Wabash and Ohio rivers.
A US Geological Survey on April 30 indicated the Wabash River in Huntington was over 17 feet, but just five days before it was at 14 feet. The water level appeared to be dropping the morning of May 1.
After a record amount of rain in 2015, the Army Corps of Engineers released excess water into the Salamonie Reservoir and Roush Lake. At one point, the Wabash River was nearly at 18 feet.
The DNR noted it was unclear how long flooding will affect the Fish & Wildlife Area.