Falsework is coming down this month after supporting the construction of what officials believe is the only transit bridge in the world to cross over an active taxiway. The 740-ft-long cast-in-place box-girder bridge is the centerpiece of a two-mile-long transit system that will connect two of Phoenix Sky Harbor International Airport’s terminals with off-airport transportation facilities.

The Phoenix office of Irving, Texas-based Austin Bridge & Road holds an approximately $6-million subcontract to build the three-span bridge as part of an overall $318-million construction manager-at-risk contract held by Hensel Phelps Construction Co., located in Greeley, Colo.