Ultimately, a cast-in-place segmental concrete box girder design was decided on. The piers were tapered to echo the pinched-waist appearance of the old trestle next to it. Construction began in late 2005. Environmental considerations required that no more than of the protected wetland below the bridge be disturbed during construction, and half that area be permanently disturbed for the bridge piers. The bridge was therefore built from the top down, using a balanced cantilever construction method. To allow concrete construction to continue through the winter, the contractor insulated the forms and ran glycol-filled pipes along their exteriors.