The barge was built in Portland , Oregon by U.S. Barge , LLC .
The barge was ferried to Shanghai , where it was fitted with a shear - leg crane manufactured by Shanghai Zhenhua Port Machinery Co. Ltd ( ZPMC ) .
The barge was built in Portland , Oregon by U.S. Barge , LLC and ferried to Shanghai , where it was fitted with a shear - leg crane manufactured by Shanghai Zhenhua Port Machinery Co. Ltd ( ZPMC ) .