What information is needed to start design of bridge as per IRC:5?

According to it, following information is needed before starting design of bridge:

• Collection of the data:

1. General data including maps, plans & topographic features.
2. Index map showing location of bridge.
3. Contour survey plan.
4. Site Plan (showing all relevant details).
5.  Cross- section of channel.
6. Hydraulic data for particular bridge site selected.
7. Geological data.
8. Loading data.

•  Determination of design discharge.
• Determination of linear waterway and effective linear waterway.
• Spacing and location of piers and abutments.
• Vertical clearance.
• Freeboard.
• Obstruction and river training.
• Determination of maximum depth of scour.
• Culverts.
• Kerbs.
• Width of Roadway and foot-way.
• Super elevation.
• Drainage of roadway.
• Expansions joints.
• Bridge foundations.