KINGMAN, Ariz. — Drivers in northwestern Arizona could soon see faster, smoother travel between Phoenix and Las Vegas as a major interchange project reaches another milestone.
The Arizona Department of Transportation has opened the second of two new tunnels as part of its effort to build a free-flowing interchange connecting Interstate 40 and US 93 in west Kingman. The agency says the $106 million project is now 80% complete.
The new 239-foot tunnel carries northbound Beale Street traffic from downtown Kingman and I-40 as it merges onto northbound US 93 toward Las Vegas.
The first tunnel, which opened in September 2025, serves local traffic on Fort Beale Drive and spans 215 feet. The second tunnel is expected to handle the heaviest traffic.
Once complete, the new interchange will eliminate the traffic signal where Beale Street meets I-40. In its place, a mile of new ramps will let vehicles move freely between the two highways without stopping.
Crews are still paving the new mile-long ramps linking I-40 and US 93, and plan to install the final bridge girders on the flyover ramp connecting southbound US 93 to eastbound I-40 in October.
Drivers should expect continued daytime and nighttime construction along with lane restrictions. Exits to Beale Street from both US 93 and I-40 will remain open throughout construction, so access to local businesses, Route 66 and downtown Kingman won’t be affected.
The project began in July 2024 and is scheduled to finish sometime next year.
Story by Brian Petersheim Jr., courtesy of AZFamily, reprinted with permission. Click here for original story.
