As much of Minnesota got hit with its first significant snowstorm of the season, at least four people died in accidents on slippery roads. Plymouth police say a pedestrian helping a driver who spun out was hit by another vehicle that spun out around 12:15 a.m. Saturday on Highway 169. The pedestrian died at the scene. That person's name hasn't been released. A truck driver was killed Friday when his semi skidded off a snow-covered bridge into a river. The tractor-trailer driver lost control of the truck just before a bridge along snowy Interstate 35 near Scanlon, which is west of Duluth, around 4:30 a.m. The truck went over the bridge and into the St. Louis River, according to Sgt. Neil Dickenson of the Minnesota State Patrol. Searchers found the driver's body around 9 a.m. The driver's identity was not immediately released. Two others died in storm-related crashes Friday morning. They were a 44-year-old Duluth trucker who went off Interstate 35 into the St. Louis River in Scanlon, and Alvaro Rodriquez, a 26-year-old Pierz man who died in a crash on Highway 25 near Brainerd. A strong low-pressure system combined with an early season blast of Canadian arctic air provided the first snowfall of the season for much of the Upper Midwest on Friday, including across eastern Minnesota. As much as 8 inches of snow had accumulated in the area by 10 a.m., according to the National Weather Service. Winds gusted as high as 40 mph in Duluth, with frequent gusts into the 30s also caused lowered visibilities in the region. The Minnesota Department of Transportation and the State Patrol reported multiple traffic incidents in and around Duluth, as well as more than 100 crashes and 125 spinouts statewide by noon, including another fatal accident near Brainerd in central Minnesota. The snowfall in much of the Twin Cities metropolitan area amounted to no more than a coating on the grass and other surfaces. The snow quickly melted in above-freezing temperatures. But the heavy snow brought highways and other roads in Duluth to a crawl. Icy conditions prevented buses from climbing a steep hill that runs along Lake Superior, leading the Duluth Transit Authority to limit service to two relatively flat major routes. Huge waves on the lake flooded parts of Canal Park in Duluth and damaged the Lakewalk, a popular boardwalk along the rocky shore. The city put up barricades and recommended the public stay away until the debris could be cleared. Farther east on the Wisconsin shore, Highways 2 and 13 along Chequamegon Bay west of Ashland were closed because of lakeshore flooding.