Description

The B-2, 4" bollard shall be fabricated with sch. 40 pipe (4-1/2" OD) and a sch. 40 weld cap welded and ground smooth. For removable bollard: a 3-1/2" sch. 40 steel insert welded and ground smooth. Steel shall conform to ASTM A53. The in ground receivers, for removable bollards shall be fabricated with 4-1/2" OD steel pipe welded to a 3" x 5" lockwell.