Bay Farm Island Bridge

Bay Farm Island Bridge
Aerial view of a bascule bridge (drawbridge) spanning the estuary separating Alameda Island from Bay Farm Island, which is now a peninsula connected to Oakland.
Aerial view of both bridges (2009)
Coordinates37°44′56″N 122°14′11″W / 37.748924°N 122.236383°W / 37.748924; -122.236383
Carriescars and trucks on SR 61
CrossesSan Leandro Channel, leading to San Leandro Bay
LocaleSan Francisco Bay Area
Official nameSan Leandro Bay Bridge
NBI33 0086
Characteristics
DesignBascule truss
MaterialSteel, concrete
Total length963 ft 6 in (293.67 m)
Width70 ft 6 in (21.49 m) overall
26 ft (7.9 m) roadway
5 ft (1.5 m) sidewalk
Longest span125 ft (38 m) bascule
Clearance below20 ft (6.1 m) (high tide)
26 ft (7.9 m) (low tide)
History
Constructed byDuncason-Harleson and Stolte
Construction startApril 18, 1951 (1951-04-18)
OpenedJuly 1, 1953 (1953-07-01)
Statistics
Daily traffic40,000
Location
Map
Bay Farm Island Bicycle Bridge
First-person perspective view, looking along the deck of the Bay Farm Island Bicycle Bridge
View along bicycle bridge
Coordinates37°44′56.5″N 122°14′9.3″W / 37.749028°N 122.235917°W / 37.749028; -122.235917
Carriesbicycles and pedestrians on San Francisco Bay Trail
Official nameSan Leandro Bay Bike Bridge
Characteristics
DesignBascule, pony Warren truss
MaterialSteel, concrete
Total length750 ft (230 m)
Width14 ft (4.3 m) overall
11 ft (3.4 m) curb-to-curb
Longest span130 feet (40 m) bascule
Clearance below20 ft (6.1 m) (high tide)
26 ft (7.9 m) (low tide)
History
Construction start1993
Opened1995
Location
Map

The San Leandro Bay Bridge, better known as the Bay Farm Island Bridge, is a single-leaf bascule drawbridge spanning the San Leandro Channel, the inlet of San Leandro Bay within the San Francisco Bay Area, California, United States. It carries California State Route 61 and links the main island of Alameda with Bay Farm Island within the city of Alameda. The present bridge was completed in 1953; it is paralleled by a second bridge (completed in 1995) devoted to pedestrian and bicycle traffic, the Bay Farm Island Bicycle Bridge.

The Bay Farm Island Bridge is one of the four bridges and two tunnels linking Alameda Island with the mainland. It is the longest bridge of the four.