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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.
Read from the scan by GLM-OCR; expect the odd misread word.
BATTELLE AND BUREAU OF PUBLIC ROADS IDENTIFICATION OF EYEBARS INSPECTED AT BATTELLE BTL IDENTIFICATION BPR IDENTIFICATION EYEBAR LOCATION BTL-1 OS-41 FROM WRECKAGE ON OHIO SIDE BTL-2 MM7 BTL-3 OS-MM14 BTL-4 OS-7 BTL-5 OS-7 BTL-6 OS-5 BTL-7 OS-5 BTL-8 OS-3 BTL-9 OS-3 BTL-10 OS-MM11 BTL-11 S9AW U25 END OF EYEBAR U25-U27-NS BTL-12 S9BW U25 U25-U27-SS BTL-13 S3B C13 C13-C15-SS BTL-14 S3A C13 C13-C15-NS BTL-15 N4A C15 C15-C17-SN BTL-16 N4B C15 C15-C17-NN BTL-17 N5A C17 C15-C17-SN BTL-18 N5B C17 C15-C17-NN BTL-19 N3A C18 C13-C15-SN BTL-20 N3B C18 C13-C15-NN BTL-21 N8BW C19 C19-C21-SN BTL-22 N8AIW C19 C19-C21-NN BTL-23 N9BW C21 C21-U23-NN BTL-24 N9AW C21 C21-U23-SN BTL-25 N9AE U23 C21-U23-SN BTL-26 N9BE U23 C21-U23-NN BTL-27 S19AW C45 C45-C47-NS BTL-28 S19BW C46 C45-C47-SS BTL-29 S19AE C47 C45-C47-NS BTL-30 S19BE C47 C45-C47-SS GROUP "E" SPECIMENS FIG. 50
Document, cited by the archive. The PDF is mirrored here; the original link is above. The text was read from the page images by GLM-OCR; expect the odd misread word. 202 pages are in the text index: search them above, or from the library's search.