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

- B4 - APPENDIX B NATIONAL BUREAU OF STANDARDS TEST RESULTS Table A2. (Cont.) Hardness Test Results, Eye C9, Segment 1. Distance from hole Vickers hardness number Spec. A Spec. B Spec. C 0.5 mm 0.02 in. 256 238 270 1.0 .04 254 236 268 1.5 .06 253 236 274 2.0 .08 258 270 2.5 .10 256 240 268 3.0 .12 254 274 3.5 .14 253 236 266 4.0 .16 251 268 4.5 .18 254 233 266 8.5 .33 232 15.5 .61 235 Note: All measurements on specimens A and C were made approximately 2.5 mm (0.10 in.) from the face of the bar.