We were prime contractor for this $25,000,000 bid-build project that provided an intermediate phase of construction for the overall Sugarloaf Parkway roadway program that upon completion connected a route from SR 316 (University Parkway) west of Lawrenceville back to SR 316 east of Lawrenceville near Alcovy Road.
The overall length of the project was 3.272 miles. The project contained 5 bridges and 7 reinforced earth retaining walls. The two smaller bridges were side road overpass bridges spanning over Sugarloaf Parkway and the 3 larger mainline bridges spanned over a flood plain that was approximately 750 feet wide. The larger bridges were built on unique hammerhead caps with a single column sitting on 25 ft x 25 ft pile caps at each intermediate bent. We secured the services of EFCO, Inc., a worldwide specialty metal form vendor to provide the form design and then rented the forms used to construct these caps and columns. These hammerhead caps are the largest ever built in Georgia. The single column design reduced the possibility of debris becoming “snagged” on the substructure in the event of a major flood situation. In addition to the large cap design, these bridges also have some of the longest AASHTO 74 in. Bulb Tee prestressed beams ever set in Georgia. The longest beams on this project were 167 feet long. We employed the use two of the largest hydraulic rental cranes in the Southeast to set these beams in place.
This project had an overall contract schedule duration of 900 days to complete. As a result of onsite planning and project management efforts, we were able to complete this project and open the new section of roadway to traffic in approximately 640 days, over 8 months earlier than the required project completion date. This was an exceptional accomplishment considering the volume of work required to complete this project.