IRC 6-2014 is a standard for calculations of loads and stresses for road bridges. This standard stipulates criteria for calculations of Dead load, Live load, Impact load, Wind load, and seismic loads.
Download IRC 6-2014 PDF with this link
Download Also-
Download IRC 5-2014 (section 1) general features and design
Download IRC 78-2014 (section 7) Foundations and Substructures
SP-16 [Design Aid to Reinforced Concrete IS 456 – PDF Download]
Download NBC 2016 – Volume 1 & Volume 2 [PDF]
Also read –
Impact Factors Applied to Bridge Loading