What is the purpose of a wing wall?

Its function is to provide end support for the bridge superstructure and to retain the approach roadway embankment. Wingwalls are also located at the ends of a bridge. Their function is only to retain the approach roadway embankment and not to provide end support for the bridge.

What is wing wall in abutment?

In a bridge, the wing walls are adjacent to the abutments and act as retaining walls. They are generally constructed of the same material as those of abutments. Wing walls are provided at both ends of the abutments to retain the earth filling of the approaches.

How box culvert is constructed?

Box Culvert is a reinforced concrete structure used as drainage under the road work. In other words, It is a small structure of less than 6m span between faces of abutments. However, due to the strength of the concrete floor, water direction can be changed when a large amount of water is expected.

What is apron in box culvert?

Apron: A hardened surface (usually concrete or grouted riprap) placed at either the invert of the culvert inlet or outlet to protect structure from scour and storm damage.

What is a concrete wing wall?

What are Wing Walls? A wing wall is a little bit like a giant retaining wall that helps with a transition in grade in the yard. The wall will normally start at the corner of the house and descend in a downward slope from the main level of the house to the basement level.

How do you measure wing wall length?

For example, a wingwall on a 2:1 slope, multiply the Step 7 value by 2. Divide the result of Step 8 by the SIN value of the result of Step 4. The answer is the wingwall length at one corner of the bridge. Repeat Steps 1 through 9 for each corner of the bridge to determine all 4 wingwall lengths.

What are the components of box culvert?

Followings are some major components of a culvert:

Pavement.
Road Embankment.
Headwall.
Wingwall.
Apron.
Crown.
Culvert Pipe.
Culvert Inlet.

What is curtain wall in box culvert?

Curtain Wall Reinforcement: The wall which is constructed below the box in a Box Culvert is called as Curtain wall or pin wall. This wall provides stability to the box.