Before a project is built, a study must be done to determine if it will fill a transportation need, will not negatively impact the surrounding area and fits the department's overall plan. During the study phase, potential projects are analyzed to determine if they are cost-effective while also efficiently improving mobility. Some of these projects have moved beyond the study phase and are under construction.

Location Project Description
Harrison County US 59 Evaluation of options for the development of I-369 in the Marshall area.
East Texas
I-20 East Texas Corridor Evaluation of current safety and capacity needs from Dallas to the Louisiana border
East Texas I-30 East Texas Corridor Studied needs in northeast Texas along I-30 from FM 2642 to the Texas/Arkansas state line
US 59-Texarkana to Queen City Route Study US 59-Texarkana to Queen City Identify a route to ultimately be constructed to interstate standards and designated as Interstate 369 (I-369)