As per IRC, the bridge approach should have a minimum straight length of _______ on either side of bridge.
- A10 m
- B15 m
- C20 mCorrect
- D25 m
Solution
Concept
The approach road should be straight for some minimum length on both sides of the bridge.
Step-by-step solution
1. Approaches should be straight for safe sight and smooth traffic entry.
Explanation
A straight approach on both sides gives drivers a clear view of the bridge.
Common mistake
Mixing this with the length for approach slabs or transition curves.
Correct answer: C) 20 m