Riverton-Belvidere Toll-Supported Bridge - Alternating single-lane travel controlled by flaggers is in effect at the Riverton-Belvidere Bridge. Travel restriction is scheduled for 8 a.m. to 2:30 p.m. Friday, Apr. 19. A federally required biennial inspection is being conducted at the bridge. Minor travel delays and backups are possible. Please reduce speeds and exercise caution while inspectors are doing their jobs.