Michael Minor & Associates (MM&A) is a full-service consulting firm specializing in sound (noise), vibration and air quality testing and measurement.

MM&A Noise Walls - Samples of noise wall projects are provided below:

Mill Plane Boulevard, Vancouver Washington
Click on picture for full sized view...

Acoustic Noise Walls on the Portland Light Rail Project

MM&A Conceptual Noise Walls drawn on existing photos to show what the walls will look like after installation...

Before	After