highway construction

Roundabout on SR 88 at Superstition Boulevard
The studies are in, and the evidence is clear: Roundabouts are safer than traditional intersections with stop lights. They've caught on in Europe, but America is slower to embrace them.
Box culvert deck pour
Everything you've ever wanted to know about box culverts, but were too afraid to ask!
ADOT Geologist James Lemmon
James Lemmon's job at ADOT rocks. Literally, it's all about rocks.
SRL202 Now Open Graphic
After a year of being open to Valley drivers, what's your favorite memory of the Loop 202 South Mountain Freeway?
Guardrail construction
Crews have been hard at work replacing guardrail on northbound State Route 87. But what does that entail? Here's what goes into putting in these silent sentries of highways.
Subscribe to highway construction