GBA provides a comprehensive range of highway, interchange, and bridge design and rehabilitation services. Our staff of civil, structural, traffic, and environmental engineers can provide assistance in obtaining funding to planning, preliminary and final design, and construction period observation. We have experience designing the following types of interchanges:

• Diamond
• Split Diamond
• Single Point
• Cloverleaf
• Partial Cloverleaf
• Trumpet
• Directional “T”