US 421 / I-40 BUS Winston Salem, Forsyth County, NC

Blythe Development Co was a partner in a fully integrated joint venture with Flatiron Constructors on this $120M design-build project. This project was an extremely fast-paced D-B project consisting of the construction of 1.3 miles of US 421 / I-40 BUS and 11 bridges. This project had been in the planning stages for over 10 years and through planning and cooperation between the NCDOT and all stakeholders an agreement was reached that this very busy stretch of highway with approximately 70,000 VPD would be shut down for 20 months to allow for the reconstruction.

This work was planned to completely realign the mainline, reconstruct three interchanges, and construct 11 bridges. The Flatiron Blythe Joint Venture committed to the shutdown time frame of 18 months in the technical proposal. After being awarded the contract and completing the preliminary work required for the shutdown, a change order was agreed upon to further reduce the shutdown period to fourteen months. The joint venture successfully met this new schedule.

Construction of 10 of the 11 bridges required vertical and alignment changes as well as interchange reconstruction, drainage reconfiguration, over 65,000 SF of soil nail and MSE walls along with asphalt paving and pavement markings. The project also necessitated considerable coordination of resources, subcontractors, and vendors. The ability to meet the adjusted deadline and challenges was made possible because of the close relationship between the joint venture, the joint venture project staff, and NCDOT. During the shutdown, the joint venture allocated the resources necessary to maintain the accelerated schedule.

This project was not only a local success for the NCDOT and all stakeholders but also had the attention of many transportation organizations in the industry. The project was awarded the AGC Pinnacle Award, a DBIA national award along with accolades from the ARTB and multiple construction.