Muller Engineering Company worked with CDOT to complete roadway improvements for the replacement of the I-25 Broncos Arch Bridge over the South Platte River near the Bronco’s Sports Authority Field at Mile High. CDOT prepared construction documents to replace the bridge, while Muller supported the team with roadway, trail and drainage improvements to upgrade the geometric design and accommodate the new bridge. The modification of roadway geometry also required modification of the I-25 and 17th Avenue Interchange. Muller traffic engineers prepared construction phasing plans for one of the most heavily traveled segments of interstate highway in Colorado carrying over 200,000 vehicles daily. The CDOT/Muller blended team successfully completed the project on a fast-track time line.