Overview

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Traffic noise is an important consideration that must be taken into account when the Colorado Department of Transportation (CDOT) embarks on environmental studies that involve major highway improvements. For these projects, a noise study is required to assess existing noise levels and predict future noise levels (usually 20 years into the future) to determine noise impacts.

All traffic noise studies and analyses prepared for CDOT projects must adhere to procedures and Dillon Valley I-70 noise wall requirements as established by federal law, U.S. Department of Transportation regulations, and CDOT noise analysis guidelines. This ensures that the policies are uniformly and consistently applied and provides equitable treatment for those impacted by highway traffic noise.

Noise Links

FHWA home page

FHWA Highway Traffic Noise Website

FHWA Environmental Guidebook

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