DES MOINES, Iowa (AP) — Officials want visitors to Iowa’s rivers and lakes over the Labor Day weekend to monitor low water levels. The state Department of Natural Resources says water levels are nearly identical to levels measured during last year’s drought. As a result, some paddlers and tubers could end up doing some walking. Officials say people should check stream flows to make sure the water can support a canoe, kayak or tube. It will ensure paddlers and tubers don’t get stuck with a much longer trip than they planned.