ANN ARBOR, Mich. If youre one of the many people returning to Ann Arbor after the holiday weekend, there are new road closures to look out for, along with posted detours. Below is an announcement from the city of Ann Arbor:Bird Road between Newport Road and Huron River Drive7 a.m. Monday, July 6-5 p.m. Friday, August 21. Beginning at 7 a.m. on Monday, July 6, Bird Road will be closed to through traffic between Newport Road and Huron River Drive for retaining wall work. Eastbound Bird Road vehicle traffic will be detoured northward on Newport Road to Foster Road, then north on Foster Road to West Huron River Drive, and southeast on West Huron River Drive. Westbound Bird Road vehicle traffic will be detoured northwesterly on West Huron River Drive to Foster Road, then south on Foster Road to Newport Road, and east/southeast on Newport Road.