Today marks the beginning of construction on Calumet Ave in Sheboygan. The 1 and a half mile stretch between Main Ave and 26th street will be the area affected, and the DOT says that Highway 42 will remain open to a minimum of one lane of traffic in each direction at all times, as crews will completely reconstruct that section of roadway. The project is projected to cost $3.3 million, and should wrap up by October.