Whatcom Waterway Phase 1 Remediation

The Whatcom Waterway Phase 1 Cleanup Project Site (Site) is located in Bellingham, Washington, and is managed by the Port of Bellingham (Port). The Site is an active waterway used for commercial and recreational operations, including transfer of bulk materials, boatyard operations such as maintenance and repair, and vessel moorage. Historical industrial activities performed adjacent to the Site have resulted in sediment contamination within the waterway including a broad range of contaminants. The Port has developed plans for future redevelopment of the waterway and surrounding upland areas including residential/commercial development and public access points to the waterway. The Site cleanup activities have been divided into three Project areas—the Inner Waterway, Log Pond, and Bellingham Shipping Terminal—and construction activities are being implemented in compliance with the requirements of the Washington State Department of Ecology (Ecology) Model Toxics Control Act and Sediment Management Standards regulations. Remediation activities for the Project include completion of mechanical dredging of approximately 110,000 cubic yards (approximately 85,000 cubic meters) of contaminated sediment, construction of engineered caps (including placement of sand, gravel, and riprap armor material), and management of dredge residuals. Additional Project construction elements include structure demolition, installation of shoreline bulkhead walls, and improvements to existing facilities to preserve operational use of the waterway. Key permitting challenges associated with this Project included coordination with the U.S. Army Corps of Engineers (USACE), Ecology, and local tribal entities to obtain permissions to complete the cleanup project as part of the Nationwide Permit process. The Project was delayed for more than 2 years due to tribal concerns regarding the cleanup approach and timeline for implementation; extensive coordination between the tribal entities, USACE, and Ecology was required to obtain formal permissions to move forward with the Project. Key construction challenges include review and revision of the contractor schedule to meet Project sequencing requirements, completion of re-design efforts to address difference in site conditions, contractor coordination with Port tenants to complete work and keep businesses operational, implementation of environmental monitoring during contractor construction operations, coordination with regulatory agencies and stakeholders throughout Project implementation, and adaptive management of change to design throughout the construction time period.

Language

  • English

Media Info

  • Media Type: Web
  • Pagination: pp 638-647
  • Monograph Title: Ports 2016: Port Planning and Development

Subject/Index Terms

Filing Info

  • Accession Number: 01605797
  • Record Type: Publication
  • ISBN: 9780784479919
  • Files: TRIS, ASCE
  • Created Date: Jun 7 2016 3:04PM