Marine Accident Brief: Breakaway of Tanker Harbour Feature from its Moorings and Subsequent Allision with the Sarah Mildred Long Bridge

On April 1, 2013, at 1324 local time, the 473-foot-long tanker Harbour Feature, with 20 persons on board, allided with the Sarah Mildred Long Bridge in Portsmouth, New Hampshire, after the vessel broke free from its moorings at the New Hampshire State Port Authority, Marine Terminal Wharf. No injuries or pollution resulted from the accident. The bridge sustained $2.5 million in damage; the Harbour Feature sustained $1 million in damage. The National Transportation Safety Board determines that the probable cause of the breakaway of the Harbour Feature from its moorings and subsequent allision with the Sarah Mildred Long Bridge was the inadequate mooring arrangement made by the master and the pilot for the vessel's location and the prevailing tidal conditions.

• Record URL:
  • http://www.ntsb.gov/investigations/AccidentReports/Reports/MAB1421.pdf
• 
• Summary URL:
  • http://www.ntsb.gov/investigations/AccidentReports/Pages/MAB1421.aspx
• Corporate Authors:

  National Transportation Safety Board

  490 L'Enfant Plaza, SW
  Washington, DC  United States  20594
• Publication Date: 2014-11-12

Language

• English

Media Info

• Media Type: Digital/other
• Features: Photos;
• Pagination: 8p

Subject/Index Terms

• TRT Terms: Allisions; Crash causes; Crash investigation; Mooring; Moorings; Tankers; Water transportation crashes; Wharves
• Geographic Terms: Portsmouth (New Hampshire)
• Subject Areas: Marine Transportation; Safety and Human Factors; I80: Accident Studies;

Filing Info

• Accession Number: 01545298
• Record Type: Publication
• Report/Paper Numbers: NTSB/MAB-14/21
• Files: TRIS
• Created Date: Nov 26 2014 10:39AM