| Silverdome |
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Cost: $55.7 Million Construction completed on time (23 months) and on budget. 1.5 million cubic yards of earth moved for construction. Materials Used: -52,000 cubic yards of concrete -1,700 tons of structural steel -10 acre Teflon-coated Fiberglas roof -18 large steel cables: vary 550 to 750 feet, weighing up to 15,000 lbs. each -10 - 75 hp fans and 15 - 100 hp fans -50 revolving doors -93 pressure balance doors Building Size: Overall- 770ft. x 600ft. Playing Field- 94,000 sq. ft. Lower Concourse- 25,000 sq. ft. Financing $15.9 million in General Obligation Notes issued by the City of Pontiac. $25 million in Revenue Bonds sold by the Pontiac Stadium Building Authority. $8 million interest on bond money prior to construction. $7.76 million installment loan for addition of an air supported roof, to be paid for out of stadium revenues. Owner: Pontiac Stadium Building Authority Groundbreaking: September 19, 1973 First Game: August 23, 1975-Detroit Lions-27, Kansas City Chiefs-24 Site: 132 total acres:100 acres - Parking Lot 20 acres - Silverdome Seating Lower Level: 42,082 Bench Seats-(3,634) Club Level-7,342 Upper Level-29,399 Private Suites-1,246 Wheelchair-256 Capacity Football, Soccer, Supercross, Tractor Pull, Rodeos: 80,325 Political Rallies, Religious Crusades: 90,000 Concerts: 22,000 to 55,000 Parking On-Site (100 acres, lighted, paved) Automobile - 12,464 Handicap - (389) Off-Site Auxiliary - 2,200 Off Site - 6,500 Facilities Executive Suites - 93 Concessions - 42 Restaurant - 1 Banquet Rooms - 2 Rest Rooms - 44 Press Area (Capacity) - 300 Private Offices - 7 Storage Buildings - 2 Warehouses - 2 Practice Facilities - 2 Roof Area - 430,000 sq. ft. (10 acres) Height - 202 ft. Weight - 200 tons Material - Teflon-coated Fiberglas Panels - 100 Pressure - Air supported at 5 lbs. Per square foot Field Lighting There are 311 lamps to our field lighting system. Average Lumens 140,000 Warm Up Time 2-4 minutes Re-Start Time 10-15 minutes Turf The 87,340-sq. ft. "Magic Carpet" system uses a series of air jets to float the one piece synthetic turf field over the stadium floor. The turf stores on a huge mechanical spool in a pit below the floor. It takes a crew of ten 30 minutes to install the playing field. Photography The lighting inside the Silverdome is designed to capture the natural sunlight that filters through the translucent roof and to provide a balance between that sunlight and the artificial lights that surround the perimeter inside the Silverdome. (On a dark, overcast day or during events held during late afternoon or evening hours, the outside lighting will have no effect on exposure.) Recommended film speed under all conditions: ASA 400 When photographing events on the playing field (lighting tends to be less in the stands), the recommended exposure is: For early evening or night events: 1/125 of a second with a lens aperture of F 5.6 For events held during sunny days: 1/250 of a second with a lens aperture of F 5.6 Various other exposure combinations may be used, but they must be equivalent to the above to be correctly exposed for best color. The lights inside the Silverdome match very closely that of natural sunlight. It is recommended that, when other types of color films are used, great care be taken to ensure that the film is the daylight type. |