The Colorado Department of Transportation reported that the ramp leading from westbound Interstate 70 to southbound Interstate 225 will be closed from 10 p.m. on Friday, Sept. 16, until 5 a.m. on Monday, Sept. 19. Closures are necessary so crews can install three 44-foot modular joints that each must be installed in one piece across the width of the bridge.Traffic is advised to use alternate routes.