IRC:6-2017 stipulates the load and load combination for bridge structures.
This code encompasses the dead load, live load, wind load, earth pressure load, buoyancy load, and horizontal forces due to water currents in detail.
You can download IRC:6-2017 true PDF with this link
You may wish to download following codes
- IS:10262-2019, a guideline to concrete mix design
- IS 456:2000 – a code of practice on plain and reinforced cement concrete