A project that has been designed and redesigned over the past decade now is on the calendar for construction to begin April 1. The city advertised for bids last month for a contractor to replace two bridges on Sherman Street that cross over the Yantic River. Bids are due Jan. 19, and construction on the project is expected to start April 1 and run through fall of 2023. The estimated $10 million project — paid for with 80% federal funds, 10% state funds and 10% city money — likely will cause traffic headaches for everyone from city residents to ambulance drivers, school buses and students walking to Norwich Free Academy from Asylum Street and nearby neighborhoods. Construction is slated to begin April 1 with utility work on the Asylum Street side of the bridge before the bridge is completely closed to traffic for the majority of two construction seasons in 2022 and 2023, McLaughlin said. During the winter of 2022-23, the bridge will be reopened as construction shuts down, but it will close again in spring of 2023 until completed.