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See Notes Most Pictures are
JPEG 576 x 472
 Bridge Approach 47k |
 Bridge Span 40k |
 Side View43k |
 Motors & Oil Tank 48k |
 Gate 48k |
 Control Panels 43k |
 Hydro Pistons 38k |
 Live Load Trunion 43k |
 Side By Side 43k |
 Console 43k |
Notes on some of the pictures:
The first picture is a view of the approach way from the Bay Farm side of
Alameda. Before the Bike bridge was opened the movable span was to heavy, the
contractors had to shave off some of the concrete they then placed a textured surface and
sealed it with an epoxy resin. The Side View is from the Alameda Side and you can
see were it ties into the concrete cofferdam. There are two 50 hp motors to power
the pistons that raise the bridge. In the background you can see the 150 gallon oil
tank. The gates swing out to keep traffic clear and in a safe area. The gates are
locked by powerful magnet's. These were installed to prevent the public from pushing
and pulling on the gates which have been damaged several times. The are several
control panels that hold the circuitry to control the Bike Bridge. The two large
pistons that move the span. The view is looking up, they are over 20 feet tall.
The main trunion bearings, these are what the bridges rotates on. You can
also see the limit switches. These limit the height the bridge can go and on the way
down these help slow the bridge down so it seats softly. You can see a side by side
view the of the Bike and how it relates to the Highway Bridge. The operator console,
the big red button on the bottom left is the emergency stop.