The Iowa Department of Transportation’s Council Bluffs Construction office reports work to replace a dynamic message sign will require restricting lanes on eastbound Interstate 80 at the Missouri River bridge (milepost 0.0) near Council Bluffs to one lane at 9- p.m. Thursday, Nov. 15th, until 3-a.m. Friday, Nov. 16th, weather permitting.  Officials say there will be a complete closure of eastbound I-80 for 20 minutes between 12:30- and 1:30-a.m. The Iowa DOT reminds motorists to drive with caution, obey posted speed limits and other signs in the work area, and be aware that traffic fines for moving violations are at least double in work zones. As in all work zones, drivers should stay alert, allow ample space between vehicles and wear seat belts.