Links
Sydney Harbour
Bridge
Climb to the top of the Sydney
Harbour Bridge

PROJECT OVERVIEW
The Sydney Harbour Bridge, has spanned the harbor
since 1932 after nine years of construction. It is one of the
longest onebow bridges in the world with a length of 1,150 m; the bow
itself being 504 m long. Thus the bridge is just 66 cm shorter than the Bayonne
Bridge in New York, but much heavier; 50,300 tons of
steel were used in the building process. The Bayonne
Bridge was completed just four months earlier thus not allowing the
Sydney Harbour Bridge to claim the longest arch bridge in the world.
Each day over 200,000 cars cross
the bridge paying a toll of $2 each when entering the city. The
Bridge was designed after the Hell Gate Arch Bridge in New York, but it
was much longer and much heavier per linear foot.
Facts & Figures
Length
of arch span 
503
meters 

Height
of top of arch 
134
meters about mean sea level 

Height
to top of aircraft beacon 
141
meters above mean sea level 

Width
of deck 
49
meters 

Clearance
for Shipping 
49
meters 

Height
of Pylons 
89
meters above mean sea level 

Base
of each abutment tower 
68
meters across and 48 meters long (two pylons rest on each abutment
tower) 

Total
length of bridge 
1149
meters including approach spans 

Bearing
Pins 
Each
of the four pins measures 4.2 meters long and 368 millimeters in
diameter 

Thrust
on bearings 
Under
maximum load approximately 20,000 tons on each bearing 

Number
of rivets 
Approximately
6,000,000 

Largest
rivet 
Weighed
3.5kilograms and was 395 millimeters long 

Longest
Hanger 
58.8
meters 

Shortest
Hanger 
7.3
meters 

Total
weight of steelwork 
52,800
tons including arch and mild steel approach spans 

Weight
of arch 
39,000
tons 

Rock
excavated for foundations 
122,000
cubic meters 

Concrete
used for bridge 
95,000
cubic meters 

