How large is the Washington monument?

Answer 1

Exterior structure

• Total height of monument:[n 1] 555 ft 5⅛ in (169.294 m)
• Height from lobby to observation level: 500 feet (152 m)
• Width at base of monument: 55 ft 1½ in (16.802 m)
• Width at top of shaft: 34 ft 5 in (10.49 m)
• Thickness of monument walls at base: 15 feet (4.6 m)
• Thickness of monument walls at observation level: 18 inches (460 mm)
• Total weight of monument: 90,854 short tons (82,421 t)
• Total number of blocks in monument: 36,491
• Sway of monument in 30-mile-per-hour (48 km/h) wind: 0.125 inches (3.2 mm)