Kalia Bhomora Setu, the pre-stressed concrete bridge over River Brahmaputra connects Sonitpur and Nagaon districts. The 3015-meter long bridge took 6 years to be completed. The work commenced in the year 1981 and completed in 1987. The bridge was named after Ahom General Kalia Bhomora Phukan. American Concrete Institute had recognized this construction as the most outstanding concrete structure in 1988 and had awarded Hindustan Construction Company, which constructed the bridge.