The grand parkway infrastructure in Dayton is scheduled to begin bridge construction over two roads in Dayton, FM 686 and CR 621. To safely accomplish this road closures are scheduled for the next few weeks. Starting today July 13, and continuing July 15, 16 and 17, FM 686 will be closed between cr 621 and cr 622, from 6 am and 7 pm, weather permitting. On Friday July 24th the roadway will be closed from 4 am until 2 pm. Motorists will be detoured, follow the signs. Then starting tomorrow, and continuing July 18, 20 and 21, CR 621 will be closed between cr 686 from 6 am to 7 pm and on Saturday July 24th 4 am until 2 p.m. Again, these Dayton road closures begin today as the grand parkway infrastructure continues construction in the city of Dayton.