With thousands of motorists expected to travel on state roadways over the Memorial Day weekend, the Illinois Department of Transportation announced that roadwork will be suspended, where possible, this weekend to reduce congestion and improve traffic flow.  IDOT also provided advance notice of lane closures that will be in place for the holiday weekend to aid motorists’ travel plans and boost safety.  Starting at 3 PM today, IDOT will suspend all non-emergency roadwork for the holiday weekend and open up all lanes where possible through midnight Monday, May 26th.  Some construction zones will have lane closures in effect though and this includes some areas heading towards Saint Louis, such as Interstate 255 will be reduced to two lanes in each direction at Interstate 64 for bridge rehabilitation, as well as I-64 from 18th Street to Illinois Highway 111 in East Saint Louis, as there will be one lane closed in both the eastbound and westbound directions to perform pavement resurfacing.  IDOT is urging motorists to slow down, obey posted speed limits, avoid distractions behind the wheel and drive with caution through work zones.  Holiday travelers are reminded that work zone speed limits are still in effect wherever posted, even when no construction workers are present.