Interstate 65 Buckner Road Interchange

History and Background

The proposed interchange is located in the City of Spring Hill. Currently, three interchanges are within five miles of the proposed location including Saturn Parkway (SR 396), I-840, and Goose Creek Bypass. These interchanges accommodate commuter traffic between Maury, Williamson, and Davidson Counties, but they are reaching capacity, which is limiting development in the area.

The request for this interchange was submitted by Williamson County and the City of Spring Hill in coordination with TDOT and the Federal Highway Administration (FHWA).

The I-65 / Buckner Road interchange will be constructed using a diverging diamond interchange (DDI) design. Buckner Road will be extended, from Buckner Lane to Lewisburg Pike, to connect with the new interchange.

The interchange will provide three lanes in each direction on the Buckner Road extension. Ramps from Buckner Road to I-65 will diverge from the through lanes, while ramps from I-65 to Buckner Road will merge with the through lanes. Two signalized intersections will be installed at either end of the overpass to control through traffic movements.

I-65 will remain in its current configuration with four 12-foot travel lanes (two lanes in each direction), 4-foot inside shoulders, and 10-foot outside shoulders.

The Buckner Road extension will consist of four 12-foot travel lanes (two in each direction) with either a median or two-way left turn lane depending on location. For approximately 300 feet east and west of the proposed interchange ramps with I-65, Buckner Road extension will be three lanes in each direction.

The extension will intersect with Buckner Lane to the west and Lewisburg Pike to the east. Both intersections will be signalized with additional travel lanes and turn lanes to accommodate traffic.

Additional improvements to connectors roads, including the existing intersection at Buckner Road and Buckner Lane, are planned by the City of Spring Hill.

On Monday, January 4, 2021, TDOT officially awarded the contract for the I-65 Interchange at Buckner Road to Bell & Associates Construction, LLC at a cost of $54,258,650

Project Imagery & Visuals

Image of DDI

Video of the I-65 at Buckner Road DDI Traffic Flow

Image of Diverging Diamond Interchange

Key Project Milestones

To expedite project delivery, the I-65 Interchange at Buckner Road project will be completed under a Design-Build (DB) contract. The Design-Build project delivery method combines all or some portions of the design and construction phases of a project - including design, regulatory permit approvals, utility relocation, and construction – into a single contract.

*All forecasted dates are subject to change.

Project Materials

For more information on the Design-Build process for this project, visit the Design-Build I-65 Interchange at Buckner Road information page under the Construction Division section of the TDOT website.

Attached is a Timeline for Design-Build Project Delivery Method.