Case Studies

Learn how recent infrastructure projects improved safety, increased efficiencies, trimmed costs and implemented new technologies.

The three bridges over the Firth of Forth (from left to right); the Forth Bridge, the Forth Road Bridge, and the Queensferry Crossing.
The three bridges over the Firth of Forth (from left to right); the Forth Bridge, the Forth Road Bridge, and the Queensferry Crossing.
Smart arrow boards include GPS units, enabling DOTs to send real-time information to drivers.
Smart arrow boards include GPS units, enabling DOTs to send real-time information to drivers.
Shallow plane failures on a steep roadway slope threatened I-80 and an access road for a Caltrans maintenance station.
Shallow plane failures on a steep roadway slope threatened I-80 and an access road for a Caltrans maintenance station.
The Longbird Bridge looking northeast. Photo by Akil Simmons.
The Longbird Bridge looking northeast. Photo by Akil Simmons.
teton pass
CrashGard sand barrels act as a crash cushion along the Teton Pass in Wyoming.
sign shop
WSDOT manufactures about 60 percent of its signs in-house at its Union Gap, WA-based sign shop.
The western bridge span.
The western bridge span. All photos courtesy of The Reinforced Earth Company.
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