Computer · Highway Engineering and Drainage
Consider the following statements regarding Indian Roads Congress (IRC) guidelines for road drainage: I. The guidelines emphasize that the road surface should have a minimum longitudinal gradient of 0.50% for effective drainage in plain areas. II. The guidelines recommend a cross-slope (camber) of around 2% for bituminous roads to ensure effective water run-off. III. The guidelines prescribe that urban drainage systems should design gradients carefully to prevent erosion and siltation. How many of the above statements are correct?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1None
- 2All three✓
- 3Only two
- 4Only one
Correct answer
All three
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