' The 14-foot boat has been in the water overnight since a Friday afternoon water rescue where emergency personnel pulled out a 16-year-old girl and a 51-year-old man about a mile and a half south of the bridge around 4 p.m.
After the boat capsized, Alameda County fire crews went in to rescue the pair who were about 200 feet from the vessel.
They were brought safely to Redwood City for medical care, fire officials said.
Saturday morning the overturned boat was spotted north of the bridge, but had moved underneath the span around 11 a.m.
Crews will try to remove the boat by the end of the day, according to the coast guard.