Architect: Shreve, Lamb & Harmon Associates

Excavation: Began on January 22, 1930

Construction: Commenced March 17, 1930.  Framework rose at a rate of 4 ½ stories per week.

Cornerstone: Original laid by Alfred E. Smith on September 17, 1930.  The 50^th Anniversary addition laid May, 1981.

Total Time: One year and 45 days including Sundays and holidays.  (Ahead of schedule).

Man-Hours: 7,000,000

Cost: $40,948,900 (including land)

Building Alone: $24,718,000 (the onset of the Depression halved the anticipated cost of the building.)

Area of Site: 79,288 square feet (7,240 meters) or about two acres. East to west, 424 feet (129 meters), north to south, 187 feet (56.9 meters.)

Foundation: 55 feet (16.7 meters) below ground

Total Height: 1,454 feet (1,453 feet, 8 9/16^th inches) or 443.2 meters to top of lightning rod.

• To 86^th Floor Observatory: 1,050 feet (320 meters)
• To 102^nd Floor Tower:
  1,224 feet (373 meters)
• 102^nd Floor to Tip:
  230 feet

Height of Antenna: 204 feet

Floors: 102

Steps: 1,860 from street level to 102^nd floor

Volume: 37 million cubic feet

Weight: 365,000 tons

Windows: 6,500

Street Level Access: Five entrances on 33^rd Street, Fifth Avenue and 34^th Street.

Elevators: 73, including six freight elevators, operating at speeds from 600 to 1,400 feet per minute.  The total enclosed in several miles of elevator shaft.  (It is possible to ride from lobby to 80^th floor in 45 seconds)