Situated on the scenic Cape Arago Highway, this twin leafed steel bascule bridge is a modern replacement for the 50 year old swing span. We provided our client with estimated man hours for the erection of the new main span and flanking spans. After their bid was successful, we were engaged to provide detailed centre of gravity calculations, counterweight requirements for final condition and partial construction phases, erection procedures and rigging design. We conceived and detailed a method of tieing back the leaves at a vertical angle of 70 degrees, providing water traffic with unrestricted entry into the harbour during construction.