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 |
| Corpus Christi | Harbor Bridge | Long-term plan to potentially replace the Harbor Bridge |
| South Texas | US 77 Upgrade | Upgrade between Corpus Christi and Harlingen to meet interstate highway standards |
| Premont | US 281 | Safety improvements to US 281 and local streets |
