Question

The following data pertain to a natural drain crossing an irrigation canal:
$\begin{array}{ccc}& \text{Canal data}& \text{Drainage data}\\ \text{Flow}& \text{10 cumecs}& \text{200 cumecs}\\ \text{Bed level}& 112m& 108m\\ \text{Depth of flow}& 1m& 8m\end{array}$
Which of the following type of cross drainage work should be recommended for the above case?

• A. Aqueduct
• B. Syphon aqueduct
• C. Syphon
• D. Super-passage

Answer 1

The correct option is B Syphon aqueduct

Since the canal bed level is higher than the drain bed level and the water level of the drain is higher then the canal bed level hence syphon aqueduct is preferred for the given case.