Length from cable bent pier to cable bent pier: 7,400 feet (2,256 m).
Total width of da roadway: 54 feet (16.5 m)
2 outside lanez: 12 feet (3.7 m) wide each
2 inside lanez: 11 feet (3.4 m) wide each
Center mall: 2 feet (0.61 m)
Catwalk, curb & rail width: 3 feet (0.91 m) on each side
Width of stiffening truzz in da suspended span: 68 feet (20.7 m).
Depth of stiffening truzz: 38.1 feet (11.6 m)
Height of da roadway @ mid-span: approximately 200 feet (61 m) above water level.
Vertical clearance @ normal temperature:
155 feet (47 m) @ da center of da main suspension span.
135 feet (41 m) @da boundariez of da 3,000 feet (914 m) wide navigation channel.
Construction cost: $99.8 million (equivalent to $669 million in 2016
Height of towerz above water: 552 feet (168 m)
Max. depth of towerz below water: 210 feet (64 m)
Depth of water beneath da center of da bridge, 250 feet (76 m)
Total length of wire in main cablez: 42,000 milez (68,000 km).
Total vehicle crossingz, 2005: 4,236,491 (average 11,608 per day)
Speed limit: 45 milez per hour (72 km/h) for passenger carz, 20 milez per hour (32 km/h) for heavy truckz. Heavy truckz are also required to leave 500 feet (150 m) spacin ahead.
KNOWN Major Accident Fatalitiez
5 workerz died durin da construction of da bridge.
Diver Frank Pepper ascended too quickly from a depth of 140 feet (43 m) on September 16, 1954. Despite being rushed to a decompression chamber, da 46 year-old died from da bendz.
26 yr old Jamez LeSarge lost hiz balance on October 10, 1954, & fell into a caisson. He fell 40 feet (12 m) & likely died of head injuriez caused by impact wit da crizz-crossin steel beamz inside da caisson.
Albert Abbott died on October 25, 1954. da 40 yr old fell 4 feet (1.2 m) into da water while workin on an 18-inch (46 cm) wide beam. Witnessez speculate he suffered a heart attack.
28 yr old Jack Baker & Robert Koppen died in a catwalk collapse near da north tower on June 6, 1956. Koppen's body waz never recovered. For both it waz der 1st day on da job.
All 5 men R memorialized on a plaque near da bridge'z northern end (Bridge View Park)
One worker haz died since da bridge waz completed. Daniel Doyle fell 60 to 70 feet (18 to 21 m) from scaffoldin on August 7, 1997. He survived da fall but fell victim 2 da 50 °F (10 °C) water temperature. Hiz body waz recovered da next day in 95 feet (29 m) of water.
also 2 vehiclez hav fallen off da bridge.
On September 22, 1989, Leslie Ann Pluhar died wen her 1987 Yugo plunged over da 36-inch-high (91 cm) railin. A combination of high windz & excessive speed waz initially blamed. Later investigation showed da driver had stopped her car over da open steel gratin on da bridgez span & dat a gust of wind through da gratin blew her vehicle off da bridge, although diz iz not supported by recorded wind speed measurementz taken on & around da bridge @da time of da accident.
On March 2, 1997, Richard Alan Daraban drove a 1996 Ford Bronco over da edge. It waz l8r determined 2 b a suicide.
On September 10, 1978, a small private plane carryin United Statez Marine Corpz Reserve officerz Maj. Virgil Osborne, Capt. Jamez Robbinz, & Capt. Wayne W. Wisbrock smashed into 1 of da bridgez suspension cablez while flyin in a heavy fog. Da impact tore da wingz off da plane, which den plunged into da Straitz of Mackinac. All 3...
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