Interstate 65 Buckner Road Interchange

Williamson County

The proposed project along Interstate 65, south of downtown Nashville, includes construction of a new interchange at I-65 and a proposed extension of Buckner Road, between Buckner Lane and Lewisburg Pike (US 41/SR 106). The newly constructed exit will be a diverging diamond interchange (DDI).

The purpose of the I-65 interchange project is to improve regional connectivity and accessibility to the interstate system by providing direct access to Spring Hill and reducing traffic demands at the existing interchanges. The safety and operation of nearby local routes, including Saturn Parkway (SR 396), Lewisburg Pike, Port Royal Road, and Columbia Pike (US 31), would also be improved by construction of the interchange. Additionally, the new interchange would accommodate future traffic demands and support economic development for the City of Spring Hill, southern Williamson County and northern Maury County.

Current Status: The project has experienced some delays that have pushed the contractor's project timeline. The project is now expected to be completed by the spring of 2024. Read more about the timeline delay here.

Construction start: February 2022

Estimated completion*: Spring 2024

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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 Interchange at Buckner Road will be as a diverging diamond interchange (DDI). 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 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. This project will be completed using the Design-Build alernative delivery mechanism, an alternative to the traditional Design-Bid-Build project delivery method. Design-Build combines various portions of the design and construction phases into a single contract, whereas Design-Bid-Build separates design and construction into separate contracts and separate work. Design-Build can provide a more unified flow of work from conception to completion by allowing the contractor to use innovative solutions that improve project delivery time, reduce project costs, and reduce impacts to drivers.


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.

Request for Qualification (RFQ)

January 2020

Request for Proposals (RFP)

July 2020

Award of Contract

January 2021

Completion of Design Plans

June 2022

Construction Begins 

February 2022

Bridge Construction Begins 

August 2022

Construction Complete

Spring 2024

*All forecasted dates are subject to change.

Project Contacts

Rebekah Hammonds
TDOT Region 3 Community Relations Officer
Phone: 615.961.6717

Clayton Markham
TDOT Region 3 Alternative Delivery
Phone: 615-350-8332