Officials with the Iowa DNR report floodwaters from recent heavy rains across southwest Iowa caused a dike on the south side of the main tract at Riverton Wildlife Management Area in Fremont County to blow out, rapidly raising the water level in the marsh. The rising water level has made the main Riverton boat ramp inaccessible and is putting water over the main access road.

The main access road and boat ramp will be closed until water levels recede. The Jensen tract south of the town of Riverton is still open to boat and walk in hunters. The Riverton Wildlife Management Area is a 4,000 acre public hunting and wildlife refuge area popular with waterfowl hunters. Iowa’s special September teal season is open through Sept. 16. The duck hunting season in the south zone is Oct. 4-8 and Oct. 18 to Dec. 11.