Tuesday, June 2, 2009

Structures - Inlet, Outlet and Bridge

What is Inlet?
If a drain is crossing a canal alignment with its bed level just above the FSL of canal and the MFD of the drain is less than or equal to 10 percent of canal discharge, then an Inlet may be proposed by letting the discharge of drain into canal by accommodating that discharge in free board.
What is outlet?
If an inlet is proposed on canal and the discharge allowed from all previous inlets including this inlet exceeds 20 percent of canal discharge, then an outlet shall be proposed to let that additional discharge of canal into the natural drain.
What is Bridge?
When a canal alignment crosses a road alignment a bridge will be proposed to continue the road which will be interrupted due to excavation of canal. The road level may be modified suitably to accommodate free discharge of canal without any obstruction. The carriageway width of bridge varies depending on the traffic of road.

No comments:

Post a Comment