Oakland Bay Bridge Pier 4 - San Francisco, CA
Posted by: bluesnote
N 37° 47.445 W 122° 23.148
10S E 554078 N 4182776
One of four tall piers (towers) that also act as benchmarks along the San Francisco-Oakland Bay Bridge.
Waymark Code: WMRBRN
Location: California, United States
Date Posted: 06/05/2016
Views: 7
The actual benchmark is at the very top, in the center of the mast. It's the tiny light that shines bright red to warn aircraft where the towers are.