Parsons has announced that its joint venture with HNTB has received notice to proceed on the Tacoma Narrows Bridge, Washington, a design-build project scheduled to be constructed in 55 months. The project scope consists of final design (to be completed in 14 months), engineering support during construction, and construction quality assurance for a new 1,645 metre suspension bridge, as well as partial retrofit to a parallel suspension bridge and 4kms of roadway approach work for Tacoma Narrows Constructors (TNC), a joint venture of Bechtel and Kiewit. TNC is the main contractor/design-builder for the Washington State Department of Transportation.