This study evaluates the Migratory Bird Treaty Act (MBTA) and how Colorado Department of Transportation (CDOT) transportation improvement projects may result in noise and vibration levels that could affect migratory birds. The pilot project examined the vibration and noise levels that occurred as a result of standard maintenance activities on Structure E-16-P along Sheridan Boulevard over Clear Creek in Arvada, Colorado. Noise and vibration data collected between September 14, 2017 and November 25, 2017 showed distinct spikes in vibration on the bridge during expansion device demolition and bridge deck repair. There was a prolonged spike in vibration frequency during milling on the bridge. Due to limitations in the data of the study, it is unclear whether the peak levels of vibration and noise measurements would negatively impact migratory birds nesting on the structure; therefore, we are referring to the project as a pilot study to be used to inform future studies on the subject.
Transportation Ecology in Construction, Operations and Maintenance
Migratory Bird Treaty Act