HNTB designed a constant-depth warren-type truss for the superstructure. Utilizing state-of-theart 3-D modeling of the new bridge, the designer was able to reduce the amount of structural steel required for the new lift span and produce a very ef?cient and attractive design. Tower height was a key element due to the close proximity to Logan
Airport. To optimize the height, wire ropes were connected to the bottom chord of the truss.
Extend the lifespan and durability of any concrete. PoreShield is a USDA BioPreferred product and is approved for residential, commercial, and industrial use. It works great above...
