Is flame cutting acceptable for removing portions of steel towers?
(i.e. spandrel access openings at sht. No.150 of 308). No. Flame cutting of girders is not allowed. Ref. Sht. No.148 of 308 “Anchor Bolt Assembly Detail”: Please confirm field drilled holes through existing base plates are required for new anchor bolts and provide hole diameter. It would be difficult to place the anchor bolts without coring a hole through the base plate. Diameter is 4 1/2″. Ref. Sht. No. 237 of 308: Please confirm field drilled holes through existing base plates are required for new anchor bolts and provide hole diameter. It would be difficult to place the anchor bolts without coring a hole through the base plate. Diameter is 2″. Ref Sht. No. 128 of 308: please confirm table 2 – “Approximate Area of Clean and Paint Structural Steel” represents 17,300 lf of 6″ wide clean and paint. This relates to Caltrans response to Karl Koch question #2 of Inquiries Responses (Fax #1) dated 8/14/97. See revisions to plan sheet 128 in addendum #6. Bid Item 64 “Clean and Paint Structur
