Village of Glen Carbon issued the following announcement on Jan 15.
As of the end of the year 2018, the concrete roadway has been poured from Mont Road to Glen Crossing Road.
There are still many items, including safety related items like guardrail, shoulders and pavement markings/signage that have not been installed.
Some of these items, such as shoulders and pavement markings, can only be installed when weather is appropriate to do so.
Since the road is unsafe for the travelling public, it will remain closed until spring 2019 when all remaining safety items can be installed on the roadway.
Work will continue throughout the winter to get the section between Mont Road and Glen Crossing Road ready to open as soon as possible in the spring.
A public informational meeting is tentatively slated for mid-February to provide updates for the upcoming construction season.
Original source can be found here.