Underwater Pile Driving Noise Study

Alaska DOT&PF and JASCO Applied Sciences partnered to characterize underwater noise from pile driving activities to inform the assessment of the potential impact of such noise on marine mammals. JASCO measured underwater sounds at the Kake, Auke Bay, Kodiak, and Ketchikan ferry terminals during ferry terminal improvement construction projects and characterized sound levels associated with pile extraction, vibratory pile driving, impact hammer pile driving, and rock socket drilling. Source levels and transmission loss coefficients were determined for each activity at each site. Background sound levels were also characterized at each site for comparison with pile driving sounds. Distances from the piles to behavioral disturbance sound pressure level thresholds were calculated for each source type and compared with source and environmental characteristics. Distances to injurious cumulative sound exposure level thresholds were calculated based on frequency-weighted data to account for hearing sensitivity of marine mammal groups.

Language

  • English

Project

  • Status: Completed
  • Funding: $199504
  • Sponsor Organizations:

    Federal Highway Administration

    Alaska Division
    709 West 9th Street, Room 851
    Juneau, AK  United States  99802-1648
  • Managing Organizations:

    Alaska Department of Transportation and Public Facilities

    Research & Technology Transfer
    2301 Peger Road
    Fairbanks, AK  United States  99709-5399
  • Project Managers:

    Morehouse, Carolyn

  • Performing Organizations:

    JASCO Applied Sciences

    310 K Street, Suite 200
    Anchorage, AK  United States  99501
  • Start Date: 20150219
  • Expected Completion Date: 20161231
  • Actual Completion Date: 20161231

Subject/Index Terms

Filing Info

  • Accession Number: 01613012
  • Record Type: Research project
  • Source Agency: Alaska Department of Transportation and Public Facilities
  • Files: RiP, STATEDOT
  • Created Date: Oct 7 2016 1:46PM