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

- B9 - APPENDIX B NATIONAL BUREAU OF STANDARDS TEST RESULTS Table A5. Hardness Test Results, Eye C4 Distance from south face Vickers hardness numbers Distance from hole Vickers hardness numbers 0.5 mm 0.02 in. 210 0.5 mm .02 in. 251 1.0 .04 221 1.0 .04 251 1.5 .06 229 1.5 .06 249 2.0 .08 232 2.0 .08 246 2.5 .10 234 2.5 .10 254 3.0 .12 234 3.5 .14 244 3.5 .14 239 4.5 .18 249 4.0 .16 241 5.5 .22 254 4.5 .18 246 6.5 .26 246 5.0 .20 239 7.5 .30 249 5.5 .22 254 8.5 .33 246 6.0 .24 251 9.0 .35 251 6.5 .26 251 7.0 .28 254 7.5 .30 244 8.0 .31 246 8.5 .33 241 9.0 .35 254 9.5 .37 254 10.0 .39 251 The above measurements were made 0.4 in. from the south face.