NCDOT I-73 GREENSBORO OUTER LOOP

Guilford County, N.C.

PROJECT DESCRIPTION

We are currently the prime consultant for the I-73 Design Build QA/QC contract. We provide assistant resident level staff, engineers and technicians to this project currently, with our excess level being 25 members at once. Our section is 10.5 miles of new location with 14 bridges, six culverts and sound and retaining walls. This project has multiple challenging features to it. First, a few of the bridge structures are specialty types, with one being a taxiway for the Greensboro PTI airport. Next, a few portions of this construction are in environmentally sensitive areas crucial to the local ecosystems, which requires us to use delicate procedures to maintain its integrity. Finally, the construction contains 36,000 linear feet of micro-piles, the largest on any project within North Carolina. Along with CEI, we provided surveying and survey grade verification services for this project.

Summit is the Prime Construction Engineering and Inspection firm (CEI) providing contract administration and inspection on behalf of the N.C. Department of Transportation and the N.C. Turnpike Authority for the Toll NC-540 project, also known as the Southeast Extension.


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The purpose of this project is to improve I-40 from I-440/US 64 (Exit 301) to just north of SR 1525 (Cornwallis Road). This project incorporates a Diverging Diamond Interchange (DDI) at NC 42 which will greatly alleviate traffic congestion in the area.


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We are the lead CEI firm for this 16-mile US 17 widening project in Division 2. The goal of this project is to offer a high-speed alternative for travelers that will relieve the heavily congested downtown areas along the current route.


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