Map 

Vicinity Map

Vicinity map

Map links:

Facts 

Overview
Tunnel under Yerba Buena Island on I-80 in San Francisco
Location
San Francisco, San Francisco County, California
Status
Open to traffic
History
Built 1936
Design
Tunnel
Dimensions
Length of largest span: 540.1 ft.
Total length: 1,791.1 ft.
Approximate latitude, longitude
+37.80833, -122.36667   (decimal degrees)
37°48'30" N, 122°22'00" W   (degrees°minutes'seconds")
Approximate UTM coordinates
10/555749/4184738 (zone/easting/northing)
USGS topographic map
Oakland West
Inventory numbers
CA 34-4 (California bridge number)
BH 11426 (Bridgehunter.com ID)
Average daily traffic (as of 1998)
204,900