Construction Engineering Projects WisDOT Freistadt Road (Intersection with Maple Road) WisDOT STH 50 (Frontage Road) WisDOT STH158 (52nd Street) STH31 to STH 32 WisDOT STH 175 – Intersection of Pilgrim Rd & Menomonee Ave Illinois Tollway Elgin-O’Hare Expressway