The Chattanooga-Hamilton County/North Georgia Transportation Planning Organization (TPO) performs a wide array of transportation planning activities for the federally-designated MPO area shown on the map below. We coordinate with federal, state, and local governments to facilitate smart investment in our region’s transportation infrastructure over the short and long term. Head to the “About the TPO” page to learn more, and click here to check out some education materials that cover some of the most frequently asked questions about TPO work.

2050 Regional Transportation Plan

The TPO is excited to be working on an update to our Regional Transportation Plan, setting the region’s vision for transportation investment as we look towards the year 2050! Please click here to visit the project website for the 2050 Regional Transportation Plan to learn more and get involved!

TPO Area Map

Public Notices/Input

The TPO encourages participation and input in the transportation planning process.

Hard copies of draft and final documents may be viewed at the Chattanooga-Hamilton County Regional Planning Agency, 1250 Market Street, Development Resource Center, Suite 2000, Chattanooga, TN 37402. Our office hours are from 8:00 am-4:30 pm (Eastern).

Please direct comments or questions to TPO staff at tpo@chattanooga.gov or (423) 643-5900.


FY 2024-2025 Unified Planning Work Program Development

The Chattanooga-Hamilton County/North Georgia Transportation Planning Organization (TPO) is responsible for coordinating the transportation planning activities for the Chattanooga-TN, GA Urbanized Area. The Urbanized Area is comprised of Hamilton County, TN and Catoosa County, GA and the northern portions of Dade and Walker counties in Georgia.  The transportation planning process is a vital part of the overall planning for Chattanooga, Hamilton County, and the North Georgia areas. The process is based on the development of the Unified Planning Work Program (UPWP).  The TPO’s UPWP identifies transportation planning activities for a two-year period.  This time period follows the Federal Fiscal Year from October 1st through September 30th.

The UPWP is developed in cooperation with state and transit partners and outlines transportation planning activities performed by the Tennessee Department of Transportation (TDOT), the Georgia Department of Transportation (GDOT), the Chattanooga Area Regional Transportation Authority (CARTA), and the TPO.


The following details a tentative timeline of activity for development of the FY 2024-2025 Unified Planning Work Program and the opportunities for public input.  This schedule may be revised during the process and those changes will be conveyed to the TPO and updated on the website.

As an updated program of activities, which has an immediate impact on the transportation system and projects in the region, it is essential that the TPO inform and involve the public in setting the priorities in the UPWP. The UPWP is provided on the TPO website (https://chcrpa.org/unified-planning-work-program/) for immediate and continued review of all transportation planning activities.

UPWP Development Process Activity Dec. 2022 Jan. 2023 Feb. 2023 Mar. 2023 Apr. 2023 May 2023 June 2023 July 2023 Aug. 2023
Coordination meeting between TPO, CARTA, TDOT and GDOT  ♦  ♦              
Notice of UPWP Development, Key Projects & Potential Activities


(TCC meeting)

(Board meeting)
Development of Draft



Submission of Draft to State Partners/Share draft with TCC and partners

Review of draft by Federal Partners and present draft to TCC and Executive Board


Post for Public Comment

♦              ♦

TCC Meeting/ Recommendation of Approval

Executive Board Meeting/Approval