Coleroon River Bridge
Srirangam, Tamil Nadu, India
Designed as an architectural landmark to replace the existing steel bridge, which has long outlived its utility, the new Coleroon River Bridge features 24 bowstring arches and is the longest and widest bowstring arch girder bridge in South India. The bridge spans approximately 1,000 meters across the Coleroon River with four lanes and 1.5-meter pedestrian footpaths on each side. Nagesh Consultants conducted a feasibility study and cost analysis, and provided structural designs and detailed drawings for the superstructure, substructure, and pile foundations.
The project team used STAAD.Pro from conceptual to final design stages to optimize structural engineering, which resulted in the adoption of a partially pre-stressed bowstring girder with reinforced concrete deck slab structural system. Using STAAD.Pro saved materials and reduced design time by almost 15 days. The software allowed the team to complete the project 90 days ahead of schedule and saved USD 2.5 million on the originally estimated USD 15 million bridge structure.
This case study was provided by Bentley Software