San Francisco Bay Region Regulated Navigational Area (RNA)

Benicia-Martinez Railroad drawbridge Regulated Navigable Area

Between longitude 122°13'31"W (coinciding with the charted position of Carquinez Bridge) and
longitude 121°53'17"W (coinciding with the charted location of New York Point.

Eastbound vessels:
(A)     The master, pilot, or person directoring the movement of a power-driven vessel of 1600 or more gross tons, or a tug with a tow of 1600 or more gross tons traveling eastbound and intending to transit under the lift span (centered at coordinates 38°02'18"N/122°07'17"W) of the railroad bridge across Carquinez Strait at mile 7.0 shall immediately after entering the RNA, determine whether the visibility around the lift span is 1/2 nautical mile or greater.

(B)     If the visibility is less than 1/2 nautical mile, or subsequently becomes less than 1/2 nautical mile, the vessel shall not transit under the lift span.

Westbound Vessels:
(A)     The master, pilot, or person directoring the movement of a power-driven vessel of 1600 or more gross tons, or a tug with a tow of 1600 or more gross tons traveling westbound and intending to transit under the lift span
(centered at coordinates 38°02'18"N/122°07'17"W) of the railroad bridge across Carquinez Strait at mile 7.0 shall immediately after entering the RNA, determine whether the visibility around the lift span is 1/2 nautical mile or greater.
(B)     If the visibility is less than 1/2 nautical mile, the vessel shall not pass beyond longitude 121°55'19"W (coinciding with the charted position of the westernmost end of Mallard Island) until the visibility improves to a greater than 1/2 nautical mile around the lift bridge.

(C)     If after entering the RNA the visibility around the lift span subsequently becomes less than 1/2 nautical mile, the master, pilot, or person directing the movement of the vessel either shall not transit under the lift span or shall request a deviation from the requirements of the RNA as presented in paragraph (b) of this section.

(D)     Vessels that are moored or anchored within the RNA with the intent to transit under the lift span shall remained moored or anchored until visibility around the lift span becomes greater than 1/2 nautical mile.

Navigation regulations are published in Chapter 2, U.S.
Coast Pilot 7. Additions or revisions to Chapter 2 are pub-
lished in the Notice to Mariners. Information concerning the
regulations may be obtained at the Office of the Commander,
11th Coast Guard District in Alameda, California or at the
Office of the District Engineer, Corps of Engineers in
San Francisco, California.
Refer to charted regulation section numbers.