Minnesota Department of Transportation

511 Travel Info

Noise Analysis

people planting a tree

Noise wall types

Concrete post wood plank noise wall
Concrete post wood plank.
Wood post wood plank noise barrier

Wood post wood plank.

Glue laminated panels noise barrier
Glue laminated panels.
Concrete panels noise barrier

Concrete panels.

Earthen berm noise barrier

Earthen berm.