A five-mile interim expansion will reduce congestion and improve mobility on State Route 24, a freeway that links southeastern Maricopa and northern Pinal counties to the Phoenix metropolitan area.
Replacing the century-old Nelson Street Pedestrian Bridge required close collaboration among project team members who had to successfully traverse five of the busiest railroad tracks in Georgia, all in close proximity to busy pedestrian areas like the State Farm and Mercedes-Benz arenas.
Scope of work on this $350-million project included construction of 16 miles of express lanes in each direction between Redwood City and South San Francisco.
The largest project for the Sacramento I-5 corridor since being built in 1975, this 67-mile roadway project included pavement rehabilitation, new carpool lanes, ramp meters, sound walls and the extension of various entrance and exit ramps.
The six-lane, 1,445-ft-long Anacostia River crossing uses an above-deck arch design coupled with cable-stay bridge technology to transform the South Capitol Street corridor into an iconic, grand urban boulevard.
After an early morning structural collapse of the 447-ft-long, three-span steel K-frame structure sent a bus and several passenger cars plummeting approximately 100 ft into a ravine below and injuring 10 people, Fern Hollow was suddenly in the national spotlight—both as a source of relief that a more serious tragedy had been averted and as a symbol of the nation’s deteriorating transportation infrastructure.
With an estimated 1,000 people relocating to Texas daily, clogged and bogged-down highways are commonplace, especially Interstate 35 through Austin, the state capital.
A high volume of transportation infrastructure work is keeping companies such as HNTB busy in Jacksonville, driven by an influx of new residents, says George Gilhooley, east Florida office leader for the infrastructure design firm.