But neither review looked at the adequacy of the flawed gusset plates. New rules are now being refined in Minnesota and across the nation. "Progress has been made," said NTSB chairman Mark Rosenker.

The Strib focused on the L11 plate — another gusset the NTSB highlighted Tuesday — noting that it had lost nearly half its thickness due to corrosion. That angle fit with the Strib’s ...

Report: Gusset plates a continued focus in bridge investigation Advertisement MINNEAPOLIS (AP) -- Investigators from the National Transportation Safety Board looking for the cause of the ...

WASHINGTON, D.C. — The Interstate 35W bridge collapsed when a too-thin gusset plate ripped along a line of rivets, initiating a collapse that killed 13 people and injured 145. That conclusion… ...

The gusset plates had fallen off many of the truss components. By contrast, of the surviving two-by-four-inch truss members, the worst char depth had penetrated less than 20% of the thickness of ...

MINNEAPOLIS—The metal plates that held the girders together on a failed 1960s-era interstate bridge were originally attached with rivets, old technology that is more likely to slip than the b… ...

A metal gusset plate was identified as the first piece of the bridge to fail when it collapsed on Aug. 1, 2007. It was used during the investigation by the National Transportation Safety Board, ...

Steel plates connecting beams in the Interstate 35W bridge in Minneapolis were too thin by half and fractured, “the critical factor” in the collapse that killed 13 people and injured 145, the ...

WASHINGTON — Undersized steel reinforcing plates were cited Thursday as the chief cause of last year’s deadly collapse of a highway bridge in Minneapolis. Federal investigators also said the ...

Two steel gusset plates, which connect some of the beams that hold up the Inner Belt Bridge, have buckled about an inch, while others have significantly deteriorated, according to a new state ...