how much does the gateway arch weigh

886 Tons (804 metric tons)

Carbon Steel Plate Interior Skin 3/8" (9.5mm)

2,157 Tons (1,957 metric tons)

Steel Stiffeners

1,408 Tons (1,277 metric tons)

Interior Steel Members, Stairs, Trains, etc.

300 Tons (272 metric tons)

Total Steel Weight

5,199 tons (4,644 metric tons)

12,127 Tons (11,011 metric tons)

In Foundation Below Ground

25,980 Tons (23,569 metric tons)

Total Concrete Weight

38,107 Tons (34,570 metric tons)

External Protection

Six 1/2" x 20" (13 x 510 mm) Lightning Rods and One Aircraft Obstruction Light