The longest suspension bridge in the western hemisphere and fifth longest in the world (as of 2021). The bridge designer states that there were 11,350 workers constructing the bridge using 85,000 blueprints. There were 100 million crossings occurred in its first 41 years.
Average Annual Daily Traffic-AADT (Both directions)
10,000
Max. recorded daily traffic
24,697
Max. recorded traffic per hour per direction
1,750
Percentage of trucks
7%
Collisions Statistics
n/a
Lanes
Road lanes per direction:
2
Rail lanes per direction:
0
Pedestrian lane:
no
Cyclist lane:
no
Emergency lane:
no
Road wearing surface type
Asphalt
Thickness:
Average 1.5 inch (approximately)
Total length of the bridge
19,205.50 feet
Main span
3,800 feet center span
1,800 feet each side span
Approach span
South:
6,283 fee
North:
4,310 feet
Pylon/tower
Type:
Steel
Height:
552 feet
Type of girder
Suspension Span:
Steel Truss
Height and width
H:
38 feet
B:
68 feet
Type of foundation
Concrete on bedrock
Sea depth at main span
295 feet
Vessel navigation channel
Width:
3,000 feet
Clearance for vessels:
155 feet
Vessel/Ship traffic
In 2015:
unknown
Cable structure
Type, dimension etc. of main cable/stay cable
Parrallel wire ( 0.196 inch) in 37 strands, Diameter 24.5 inch
Type, dimension etc. of hangers
2.25 inch diameter, 6 strand wire rope
Is the cable structure dehumidified
no
If so, year established
Expansion joints
Number
17 total for suspended and approach spans
Type
Finger
Product
Bearings
Number
Many in entire bridge
Type
Rocker mostly, some sliding in smaller spans
Product
Extent of inspection and frequency
Annual Inspection
Biennial fracture critical inspection Underwater inspection every 5 years In-depth cable inspection scheduled every 10 years. Access is by custom built platform.
Means of funding ongoing costs
Toll
Last updated: September 21, 2021
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