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Collapse of U.S. 35 Highway Bridge, Point Pleasant, West Virginia, December 15, 1967 (HAR-71/01)

National Transportation Safety Board · 1970-12-16 · 202 pages · text by OCR

This is the final highway accident report (NTSB-HAR-71-1) from the National Transportation Safety Board, adopted in December 1970. It covers the collapse of the U.S. 35 bridge between Point Pleasant, West Virginia, and Kanauga, Ohio, on December 15, 1967, which killed 46 people. The Board found that the cause was a cleavage fracture in eyebar 330 at joint C13N. That fracture grew from a flaw produced over 40 years by stress corrosion and corrosion fatigue, in a spot that could not be seen or found by inspection.

Open the PDF at page 37 Original source ↗

“Harder”1 page

  • p. 64 …the machining of the hole, exposing the harder material. Some of this material was extremely hard…
## GROUP D" SPECIMENS

OTHER SPECIMENS
MEMBER NUMBER	SPECIMEN NUMBER	MEMBER TYPE	LENGTH
L10-LN-8N	BPR-HH7	CHANNEL	5'
L27-L29-NN	BPR-HH9	CHANNEL	3'
C19-C21-NS	BPR-HH15	EYEBAR	5'
C21-U21-S	BPR-HH14	EYEBAR	3'
C26-C27-SS	BPR-39B	EYEBAR	60"
L36-L37-SN	BPR-HH8	CHANNEL	4'
U36-U37-NS	BPR-HH10	CHANNEL	5'

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Document, cited by the archive. The PDF is mirrored here; the original link is under it. The text was read from the page images by an OCR model; expect the odd misread word. 202 pages are in the text index: search them above, or from the library's search.