Wire spiral about 3-in. pitch.
Point of failure about 18 in. from top.
Top of cast-iron cap cracked at four corners.
Ultimate load—1,260,000 lb.
Remarks.—Both caps apparently well seated, as was the case with all the subsequent tests.
Test No. 3.
Marks on column—4-B.
Reinforcement—eight 7/8-in. round bars vertically.
Hoops—1-3/4 in. × 3/16 in. × 14 in. outside diameter.