On Monday, September 25 and Tuesday, September 26, the Colorado Department of Transportation and contractor partner, SEMA Construction Inc., will close multiple lanes of Interstate 25 at Orchard Road to remove and replace a median barrier and mill and pave the roadway. Four lanes on southbound I-25 at Orchard Road from mile point 198.5 to MP 198.6 will be closed at 11 p.m., and three lanes northbound will be closed at 12 a.m. All lanes will be open by 5:30 a.m.