117.163—Islais Creek (Channel).
(a)
The draw of the Illinois Street drawbridge, mile 0.3 at San Francisco, shall open on signal if at least 72 hours advance notice is given to the Port of San Francisco.
(b)
The draw of the 3rd Street drawbridge, mile 0.4 at San Francisco, shall open on signal if at least 72 hours advance notice is given to the San Francisco Department of Public Works.