Runway expansion work currently underway at Juneau International Airport in Alaska is expected to be completed in the new year.
The upgrade work, which began last year, will bring Juneau's runway in line with US Federal Aviation Administration (FAA) requirements, according to juneauempire.com.
At a cost of $42m, the expansion has added 900ft to the east end of the runway and 250ft to the west, which means damage will be reduced if a plane overshoots the 8,456ft runway.
A 75ft safety area will be added to each side of the runway.
The $24m second-phase expansion, which is still in planning stages, is likely to involve upgrading the runway's pavement and lighting systems.
The FAA will provide 95% of the project's funding, while state and local investors will offer 2.5% each.