I-395 Signature Bridge

The signature bridge in I-395 consists of 6 segmental concrete arches,
whose spans range from about 300 feet to 650 feet, and they have a height of 180 feet to 330 feet. CHI performed stress analysis and preliminary design for the
segmental arch sections, laid out post-tensioning tendons for the final
condition, and performed erection analysis and design of erection
tendons. In addition, CHI performed design of the central pier where all
six arched converged. Advanced 3D finite element modeling and
analysis were performed for typical arch segments with suspenders
and the center pier.

3D BIM/Revit models were created for the central pier and arch
foundations where all the tendons come together in order to check for
clashes and conflicts.