4100 Grillage Fabrication

Barge Stabilizer

Swanton Welding took on a project with a simple goal: support a 1500 tons crane with two barges. The heavy duty steel frame binding the two barges together, and the crane would be used to drive in bridge pilings.


Completion Date

March 13, 2017


New Pensacola Bay Bridge


36” Wide x 302 per ft. steel beams

Fabrication Methods

We used the Ficep Beam Line, CNC machining, & full penetration welds


The longest pieces were 90’ long


Approx total weight of project was 300,000 lbs

Special Notes

All full pen joints had to be Ultrasonic Tested. All bolts had to be tightened to 700 ft.lbs. of torque