Norfolk Expressway Tunnel

CTLGroup worked with design-builder Skanska/Kiewit/Weeks (SKW) on the New Midtown Tunnel beneath the Elizabeth River in Portsmouth & Norfolk, Virginia. Specific services provided by CTLGroup included the development of project specifications and a thermal control plan for casting the concrete base slabs, walls, and roof slabs; concrete placement procedures and recommendations; service life analyses and confirmation testing; and review and provide recommendations regarding planned mockups.

CTLGroup worked with Parsons Brinckerhoff, tunnel designer, to perform service life modeling, review mass concrete specification requirements. In addition, the Virginia Department of Transportation (VDOT) adopted CTLGroup’s mass concrete recommendations into their specifications.


Civil Infrastructure

Materials & Products


Consulting Services

Durability & Service Life

Mass Concrete & Thermal Control

Materials Science + Engineering

Laboratory Services

Concrete + Cement-Based Materials

Durability & Service Life Testing

During it's first year of operation in 1962, 8,400 vehicles per day crossed through the tunnel.


Year of Completion


Hours Worked


Feet Below Sea Level

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Project Detail Form

Project Detail Form