Culverts are usually covered by which material?

Culverts are usually covered by which material?

• A. Concrete
• B. Embankment
• C. Steel
• D. Asphalt

Answer: (B)

Culverts are typically buried under the earth fill that forms an embankment. The culvert carries water beneath a road or railway, and the roadway sits on top of an embankment that provides both support and backfill around the structure. So the material that covers the culvert in common highway practice is the embankment—the compacted soil used to build up and support the road. The culvert itself might be made of concrete or steel, and the road surface is asphalt or concrete, but the cover directly above the culvert is earth fill in the form of an embankment.

Culverts are typically buried under the earth fill that forms an embankment. The culvert carries water beneath a road or railway, and the roadway sits on top of an embankment that provides both support and backfill around the structure. So the material that covers the culvert in common highway practice is the embankment—the compacted soil used to build up and support the road. The culvert itself might be made of concrete or steel, and the road surface is asphalt or concrete, but the cover directly above the culvert is earth fill in the form of an embankment.