Structural Specifications of Lighthouse Tower
Number of Bricks Used: 1.25 million (approx.)
Height of Tower from Base to Tip of Lightning Rod: 188 feet 6 1/2 inches
Height of Tower from Ground Level to Tip of Lightning Rod: 176 feet 6 1/2 inches
Lantern Height from Watch Room: 35 feet 9 1/2 inches
Diameter of Tower at the Top (Lantern Room): 16 feet
Focal Plane (Height of Light above Sea Level): 164 feet 6 inches
Number of Steps from Ground Level to Lantern Room: 213
Height of Gallery Deck Above Ground Level: 140 ft. 9 inches
Number of Steps from Ground Level to Gallery Deck: 203
Thickness of Tower Walls at the Top of the Tower: 1 1/2 feet
Number of Landings on Spiral Staircase: 9
Number of Steps in Spiral Staircase: 194
Materials Used in Spiral Staircase: Cast and Wrought Iron
Number of Windows in Tower (Excluding Lantern Room): 10
Number of Window Panes in Lantern Room: 48
Diameter of Tower at the Base (Exterior): 28 feet
Diameter of Tower at First Level (Interior): 12 feet
Thickness of Walls at First Level: 8 feet
Number of Granite Steps Leading Into Tower: 9
Diameter of Tower at Ground Level (Including Granite Coping): 32 feet
Diameter of Top of Octagonal Tower Foundation: 38 feet
Diameter of Octagonal Tower Foundation at Base (Underground): 45 feet
Depth of Foundation Below Ground: 12 feet
