This graceful steel arch is a fitting replacement to the picturesque spans of C. B. McCullough's circa 1936 concrete bridge structure. The contribution provided by Somerset on this project is easily defined: to provide the steel erector and general contractor with an economical method of building the arch and to produce the estimated man hours to construct it. Our proposal impressed both these parties and we proceeded with detailed design. The 350 foot arch was erected from a timber trestle which was aligned according to our erection sequences and crane layout clearances. All rigging, props and pile jacking heads were also detailed by Somerset. Methods of attaining the different angles for each box member were provided to facilitate lifting and connecting.