Air & Noise
Managed by the Project Management Section supervisor, the purpose of the Air & Noise Program is to assess and guide the Department relative to issues of air quality and noise impacts as well as to recommend potential avoidance, minimization and abatement measures in order to allow for the progression of Department actions while ensuring compliance with all rules and regulations relative to air quality and noise.
Noise Analysis
Abatement Eligibility
Noise abatement in New Hampshire is generally in the form of a sound barrier or berm. The locations of these barriers are identified using a specific set of criteria set forth by the NH Department of Transportation (NH DOT) and the Federal Highway Administration (FHWA). An area is not considered eligible for noise abatement unless it meets ALL of the criteria set forth in the Department's Noise Policy.
Additional Information:
- 1996 NHDOT Noise Policy - For projects approved prior to July 13, 2011
- 2011 NHDOT Noise Policy - For Projects approved on or after July 13, 2011
- 2016 NHDOT Noise Policy - For Projects approved on or after November 30, 2016
- NHDOT Noise Barrier Programs
- FHWA Traffic Noise Information
- AASHTO Center for Environmental Excellence - Noise
Air Quality
Additional Information:
Contact