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

- B2 - APPENDIX B NATIONAL BUREAU OF STANDARDS TEST RESULTS Table A1. (Cont.) Hardness Test Results, Eye CO, Segment 1. Distance from hole Vickers hardness number Spec. A Spec. B Spec. C 0.5 mm 0.02 mm 262 253 266 1.0 .04 264 254 262 1.5 .06 266 249 260 2.0 .08 262 258 2.5 .10 260 260 3.0 .12 260 254 3.5 .14 258 262 4.0 .16 258 262 4.5 .18 262 251 258 8.5 .33 249 15.5 .16 245 Note: All measurements on specimens A and C were made approximately 4 mm (0.16 in.) from the face of the bar.