Nashville, August 11, 2025
News Summary
Nashville International Airport and TDOT kick off construction of a diverging diamond interchange to ease traffic congestion around the airport. Starting August 11, lane closures and rerouting will occur, with disruptions expected as the project progresses. The construction aims to improve road capacity and safety, with costs estimated at $135.9 million, expected to conclude by August 2027.
Nashville
Nashville International Airport (BNA) and the Tennessee Department of Transportation (TDOT) are commencing construction on a new diverging diamond interchange aimed at alleviating traffic congestion around the airport. Starting from August 11, lane closures and vehicle rerouting will take place, with the potential for initial traffic disruptions as the project unfolds.
Construction Schedule and Traffic Impact
The construction is scheduled to last at least through the end of August, with lane closures occurring nightly from 8 p.m. to 4 a.m.. During this period, three lanes of traffic on Interstate 40 in both directions near Exit 216 by the airport will be closed. This phase of the project is expected to continue for two to three weeks.
Additionally, two further closures will occur on August 12, 13, 14, and 15. Exit 216A off of I-40 eastbound will close from midnight to 3 a.m. on August 12 and 13, while Exit 216B will close during the same hours on August 14 and 15. During these closures, drivers are advised to detour between Exit 216A and Exit 216B.
Details of the Project
The construction of the diverging diamond interchange is part of a larger project aimed at increasing the capacity of roads leading to BNA, enhancing safety, and reducing ongoing traffic congestion. The total cost of relocating the interchange and replacing it with the diverging diamond has been estimated at $135.9 million.
The construction initiative began in 2022 and is projected to conclude by August 2027. To expedite the project amid persistent traffic issues at the interchange, the Metro Nashville Airport Authority Board has authorized up to $6 million in incentives for the contractor should early completion be achieved.
Background Information
Nashville has experienced a remarkable surge in airport traffic over the past decade. Annual passenger numbers have more than doubled from 11.7 million in 2015 to a predicted 25 million by 2025. The current Donelson Pike interchange was constructed in the 1980s, a time when traffic demand was significantly lower than today’s levels. In light of this growth, MNAA officials emphasize the importance of implementing innovative solutions to meet the rising travel demands.
Conclusion
While the construction of the diverging diamond interchange promises much-needed relief in the long term, drivers should prepare for potential delays and adjust their travel plans accordingly during the construction period.
FAQ
What is a diverging diamond interchange?
A diverging diamond interchange is a roadway design that helps facilitate traffic flow at busy intersections, allowing vehicles to switch sides and thus easing congestion.
When will the lane closures begin?
Lane closures will start on August 11 and are expected to last at least through the end of the month.
What hours will the lane closures be in effect?
The lane closures will occur nightly from 8 p.m. to 4 a.m.
Why is this construction necessary?
The construction aims to increase road capacity, enhance safety, and mitigate traffic congestion due to rising passenger numbers at Nashville International Airport.
Key Features of the Project
| Feature | Details |
|---|---|
| Construction Start | August 11 |
| Expected Duration | At least through the end of August |
| Work Hours | 8 p.m. to 4 a.m. (daily) |
| Total Cost | $135.9 million |
| Projected Completion | August 2027 |
| Passenger Growth | From 11.7 million in 2015 to an estimated 25 million by 2025 |
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Additional Resources
- Tennessean: Nashville Airport Road Closures
- Wikipedia: Nashville International Airport
- WKRN: TDOT Schedules I-40 Lane Closures
- Google Search: Nashville traffic problems
- WSMV: TDOT Warns Drivers of Traffic Delays
- Encyclopedia Britannica: Interchange (Road)
- Fox17: TDOT Unveils New Diverging Diamond Interchange
- Google News: Nashville Airport Construction
Author: HERE Nashville
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