Private Residence Pedestrian Bridge Design

This project consisted of the design of an hourglass-shaped precast concrete bridge at a private residence located in Shelter Island, New York. The structure spans approximately 45 feet and is supported by elastomeric bearings at each end.

The bridge consisted of a one foot thick slab section with 10 inch walls at the edge with an opening for precast access stairs located near the supports. The bridge was designed as an integral “C” shaped channel using RISA-3D software and Enercalc software in accordance with AASHTO and ACI 318 design codes.

Location: Shelter Island, New York