The following ODOT construction projects are anticipated to impact traffic in Highland County. Visit OHGO.com for travel updates or follow ODOT District 9 on Facebook or X for current Highland County construction information. State Route 73SR 73 Bridge Replacement — SR 73 is reduced to one lane between Line Road and Mad River Road. SR 73 Bridge Replacement — SR 73 is reduced to one lane between SR 785 and Flat Run Road. Traffic is being maintained by a temporary signal.