McHENRY – Charles J. Miller Road will be reduced to one lane Friday.
Flaggers will direct eastbound and westbound traffic through the construction zone, according to a news alert.
Drivers can expect "significant delays" and should look for an alternative route, the alert said.
The construction is part of a two-phase project that will widen the two-lane Charles Miller Road to four lanes and construct a second two-lane bridge over the Fox River to create two lanes of traffic in each direction.
Officials expect this phase of the two-part project to be completed by Oct. 15. Work began in November.
For information and to sign up for updates on the the project, visit charlesmillerroad.com. Emails will be sent to those that sign up alerting them where and when construction activities and potential traffic delays will occur.
- Emily K. Coleman