National Transportation Safety Board
Office of Public Affairs
The National Transportation Safety Board today released the following photographs of the pipeline that ruptured and spilled oil into a river last week in Marshall, Michigan.
On the evening of Sunday, July 25th, a 30-inch crude oil pipeline, operated by Enbridge Energy Partners/Pipeline, experienced multiple low pressure alarms near the Marshall City Pump station during a planned shutdown. By 11:45am (EDT) the following morning Enbridge employees confirmed an oil leak extending into nearby Talmadge creek, a tributary to the Kalamazoo River.
Two sections of the pipe, 23 feet, 4-inches and another 26 feet, 10-inches, have arrived at the NTSB for further examination.
The photographs show the length of the fracture which extends approximately 6 1/2 feet longitudinally with the widest portion of the opening measuring 4 1/2-inches. The fracture was located approximately 25 feet from the upstream joint in a 40 foot section of 30-inch pipe.
The photographs may be downloaded by clicking on the link after each caption, below.
The NTSB's investigation continues.
NTSB Media Contact:
Close-up view of the section of pipe containing rupture. Rupture length is approx 6 ft 5 inches and is 4 1/2 inches wide at the widest location. - Download this photo at http://www.ntsb.gov/Pressrel/2010/images/DSC07332.jpg
Section of pipe containing rupture. Rupture length is approx 6 ft 5 inches and is 4 1/2 inches wide at the widest location. - Download this photo at http://www.ntsb.gov/Pressrel/2010/images/DSC07434-1.jpg
The National Transportation Safety Board (NTSB) is an independent federal agency charged with determining the probable cause
of transportation accidents, promoting transportation safety, and assisting victims of transportation accidents and their families.