Two vehicles and one motorcycle collide on Highway 10 in MonoAugust 6, 2026 · 0 CommentsDufferin Ontario Provincial Police (OPP) officers, along with Dufferin County emergency services, attended a serious three-vehicle collision in Mono on July 31. At approximately 6:30 p.m., officers attended the collision on Highway 10, which involved an SUV, sedan, and motorcycle. Highway 10 between Highway 89 and 20th Sideroad was closed for six hours while the OPP’s Traffic Collision Investigation (TCI) team investigated alongside officers. The investigation is continuing, and anyone who may have witnessed the collision is asked to contact the Dufferin OPP at 1-888-310-1122. Anyone who witnessed the collision and wishes to speak to victim services can reach Caledon/Dufferin Victim Services at 905-951-3838.