Water levels are still dropping. Prewitt is closed to boating, only hand launched boats are allowed. The ramp and dock are out of the water. Fishing has been slow ...more for all species. A few wiper and walleye are being caught at night off the dam. Prewitt requires an annual fishing license or a State Wildlife Area access permit for anyone ages 19-64. The minimum size for walleye and wipers is 15 inches. Report courtesy of www.kansasangler.com and Zeiner’s Bass Shop.