| Outer Width - Outside North Leg to Outer South Leg | 630' (192m) |
| Maximum Height | 630' (192m) |
| Shape of Arch Section | Equilateral Triangle |
| Dimension of Arch at Base | 54 ft. (16.46m) |
| Dimension of Arch at Top | 17 ft. (5.18m) |
| Size of Windows | Approx. 7" x 27" (180 mm x 690 mm) |
| Construction of Windows | 3/4 in. (19mm) Plate Glass; Hinged and Locked |
| Size of Observation Room | 7' 2" x 65' x 6' 9" high (2.18m x 19.8m x 2.06m) |
| Capacity of Observation Platform | 100 - 140 persons |
| Deflection of Arch | 18" in 150 MPH wind (0.46 m in 240 km/h wind) |
| Method of Determining Deflection of Arch | Calculations and Wind Tunnel Tests (240 km/h) |
| Number of Sections in Arch | 142 |
| Thickness of Plates for Outer Skin | 1/4" (6.3mm) |
| Type of Material Used in Arch Exterior | Stainless Steel; #3 Finish Type 304 |
| Structural Capacity of Observation Area | 100 lb/sq. ft (488 kg/m) |
