articleThe Brief The Waukesha County DPW shut down a stretch of highway in Merton. The Waukesha County Department of Public Works shut down a stretch of highway in Merton after a culvert failed. Merton culvert failureWhat we know:On Tuesday, the county DPW said County Highway E is closed to through traffic between County Highway Q and County Highway VV. A box culvert failed at the Oconomowoc River tributary between the river and Lake Keesus. Dig deeper:It's the second time this year that a culvert failure has shut down a Waukesha County road.