I-40/US 93 West Kingman Traffic Interchange
I-40/US 93 West Kingman Traffic Interchange
Contents

Current and upcoming closures and restrictions (1)
Project Cost: $106,543,210
Construction started July 2024 on a new system interchange connecting I-40 and US 93 in west Kingman.
Project Description
- New US 93 segment connects directly to I-40
- Free-flow connection (no traffic signal)
- New ramps maintain Beale Street access
- Increased I-40 capacity
What to Expect During Construction
- Blasting closures: Same dates/times as above. Expect up to 30-minute delays.
- Lane restrictions on I-40 & US 93 (9 p.m.–5 a.m., Mon–Thu)
- Clack Canyon Road Closure: Closed except for local residents
- Expect delays up to 15 minutes
- Use caution in work zones
- Construction noise
Project Purpose and Need
- Reduce congestion on I-40 and US 93
- Relieve Beale Street traffic
- Improve regional travel
Project Photos






Design and Construction Timeline
ADOT does not have the funds to build all the improvements of a full system interchange at one time. The project will be constructed in two phases, with the Phoenix to Las Vegas directional ramps constructed first. Phase II will construct the directional ramps between Las Vegas and California, when traffic demands warrant the improvements are needed, and when available funding can be programmed. Phase 1 construction started in July 2024 and is scheduled to finish in 2027.
History
ADOT has monitored the increasing traffic growth and congestion in west Kingman that has occurred over the years. The traffic volume is more than the current diamond interchange is designed to accommodate.
In 2007, a feasibility study was initiated, and alternatives for a new system traffic interchange were identified. The proposed traffic interchange design includes a free-flowing connection between the two freeways without stopping at the ramp intersection.
The new traffic interchange is being designed to accommodate both current and projected traffic volumes for this area for the next 20 years. The Final Feasibility Report was completed, which identified a preferred improvement corridor.
In 2009, the preferred improvement corridor was further refined into a series of specific alignment alternatives. These alternatives were shared with the public and agency stakeholders where a most favorable alternative was developed. This information was completed and summarized in a Design Concept Report (DCR) in 2015.
The Final Environmental Assessment (FEA) was completed in July 2020.
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