Cross drainage structure with waterway in the range of 6m to 30m is known as _______
- AMinor Bridge
- BMajor Bridge
- CMedium BridgeCorrect
- DCulvert
Solution
Concept
Bridges are classified by total waterway or length: culvert, minor, medium and major.
Step-by-step solution
1. Culvert: total length up to 6 m. 2. Minor bridge: length 6 m to 30 m. 3. Medium (major) bridge: length above 30 m up to 60 m. 4. Long span bridge: above 60 m.
Common mistake
Mixing up the limits of minor, medium and major bridges.
Correct answer: C) Medium Bridge