Chattanooga Department of Transportation

The Chattanooga Department of Transportation (CDOT) aims to make efficient transportation and access viable for all commuters – bicyclists, pedestrians, transit users, and motorists, while enhancing multi-use public spaces for all people.  We focus on increasing efficiency of the network through a combination of strategies, including creating new connectivity and focusing on travel mode choice, safety, and in the impact of our street network on neighborhoods and communities.  We know that new connectivity and development form – both of which encourage safe and viable choices for getting around – are key to strong neighborhoods, a growing economy, and safer streets.

Consultant Team

The consultant team assisting the City of Chattanooga with the 3rd and 4th Street Improvements project is a multi-disciplinary team of engineers, planners, design, and landscape architects, led by WSP USA.


WSP USA is the U.S. operating company of WSP, one of the world's leading engineering and professional services firms. Dedicated to serving local communities, we are engineers, planners, technical experts, strategic advisors and construction management professionals. WSP USA designs lasting solutions in the buildings, transportation, energy, water and environment markets. With more than 9,500 employees in 150 offices across the U.S., we partner with our clients to help communities prosper.  From our Nashville office we have been providing planning and design services to the Tennessee Department of Transportation (TDOT) and municipalities across the state since 1990.

Alta Planning + Design

Alta Planning + Design specializes in the planning, design, and implementation of bicycle, pedestrian, greenway, park, and trail corridors and systems. Alta's mission is to create active communities where bicycling and walking are safe, healthy, fun, and normal daily activities. Alta offers a unique blend of skills to produce an effective and high quality Complete Streets solution, from concept to implementation. Their staff has specialized expertise in land-use planning, traffic calming, context-sensitive design, Main Streets, transit corridors and access, multi-modal design, urban design, and many other aspects of creating livable communities. Their approach to transportation planning integrates expert planning, design, economics, and land use to create opportunities for people to choose bicycling and walking for recreation and transportation. Alta is the national leader in creating plans that support sustainable community strategies and Complete Streets policies.

Nelson\Nygaard Consulting Associates

Nelson\Nygaard Consulting Associates, Inc. is an internationally recognized firm committed to developing transportation systems that promote vibrant, sustainable, and accessible communities. Founded in 1987, Nelson\Nygaard has grown from its roots in transit planning to a 123-person, full-service transportation firm with offices across the United States. Nelson\Nygaard puts people first; they recognize that transportation is not an end by itself but a platform for achieving broader community goals of mobility, equity, economic development, and healthy living. The firm's hands-on, national experience informs but does not dictate local solutions. Built on consensus and a multimodal approach, their plans are renowned as practical and implementable.

Barge, Waggoner, Sumner, and Cannon

Barge, Waggoner, Sumner, and Cannon, Inc. is a multidisciplinary engineering consulting firm that focuses on providing cost-effective, high-quality solutions to clients' short-term and long-term needs. BWSC understands how civil site design and landscape architecture must be accomplished hand-in-hand for effective results. Landscape architects lead master planning and detailed site and sustainable design efforts for landscape and hardscape design.


Earthworx, LLC is a certified disadvantaged business enterprise (DBE) and a small woman-owned business (WBE). Earthworx specialties include GIS development and mapping, facility management, global positioning systems (GPS) network design, architectural/ engineering design mapping, civil site/stormwater, green infrastructure engineering and engineering route design, construction field engineering, construction field inspection, and wetlands delineation and mitigation.


S&ME, Inc. is a diversified engineering firm that consults on a wide range of infrastructure, development, and resource management projects. The firm's goal is to provide practical solutions to our clients' challenges with geotechnical engineering, materials engineering and testing, and environmental issues. S&ME's services are generally provided using in-house field exploration capabilities and accredited laboratory testing facilities.



Chattanooga Department of Transportation