biketourtitle.gif (7940 bytes)

Bay Farm Island Bike Bridgeback.gif (800 bytes)Back
  See Notes   Most Pictures are JPEG  576 x 472

Bridge Approach
Bridge Approach
47k
Bridge Span
Bridge Span
40k
Side View
Side View
43k
Main Motors
Motors & Oil Tank
48k
Gate
Gate
48k
Control Panels
Control Panels
43k
Hydro Pistons
Hydro Pistons
38k
Trunion
Live Load Trunion
43k
Side By Side View
Side By Side 43k
Operator Console
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.

Back