I-40/I-440 Pavement Reconstruction
One of the most high-profile projects in North Carolina, the I-40/440 project will reconstruct 11.5 miles of interstate along the southern leg of the Raleigh Beltline. Most of the roadway is more than 30 years old and is crumbling due to an alkali-silica reaction (ASR) between the aggregate and the cement. The design-build project will replace the pavement, as well as include minor widening, providing a safer surface.
Teamed with Granite Construction, RS&H is serving as the prime design consultant and has provided several design innovations that will help to reduce costs and ease public concerns. One of the most significant design solutions includes replacing the recommended grass median with a median barrier section, which provides an additional third lane in each direction during construction to increase capacity and ease gridlock.
Although NCDOT had estimated a project cost of more than $190 million, the design-build team was able to shave more than $50 million from the project costs due to innovations and cost savings strategies. Ultimately, the project will be an improvement for motorists and will sustain this economic lifeline for the state.