# LOCAL NOTICE

TO MARINERS

U.S. Department

of Transportation

United States

Coast Guard

# MONTHLY EDITION

ISSUED BY: COMMANDER ELEVENTH COAST GUARD DISTRICT (POW)

Coast Guard Island, Building 50-6, Alameda, California 94501-5100

Telephone: Day: (510) 437-2976 24 Hour FAX: (510)437-5836

For subscription information and other questions, comments and
suggestions, call (510) 437-2976.

Boating Safety Classes or Information: 1-800-869-SAIL (7245)

## \*\* FAX-ON-DEMAND - LOCAL NOTICE TO MARINERS AT (703) 313-5931 or 5932 \*\*

\*\* Electronic Bulletin Board Service: (703) 313-5910 \*\*

300 to 28.8 bps, 8 data bits, no parity, 1 stop bit

\*\* NIS watchstander, 24 hours a day at (703) 313-5900 \*\*

\*\* INTERNET ADDRESS \*\*

HTTP://www.navcen.uscg.mil

OR

FTP://ftp.navcen.uscg.mil

BROADCAST NOTICE TO MARINERS - Information concerning aids to navigation
and waterways management

promulgated by BNM 0993/96 to BNM 1006/96 have been incorporated in this
notice if still significant.

LIGHT LIST REFERENCE: COMDTPUB P16502.6 LIGHT LIST, VOLUME VI 1996
Edition

USE OF THE LOCAL NOTICE TO MARINERS

The Monthly edition of the Local Notice to Mariners contains all
information relevant to the waterways within the Eleventh Coast Guard
District. This Monthly edition should be retained as a reference for
subsequently issued Weekly Supplements.

# I. SPECIAL NOTICES

OMEGA STATUS AS OF 30 DECEMBER 1996

All Omega Stations are on-air.

Omega status recording : Phone number (703) 313-5906.

LNM 01/97 dated 30 December 1996.

# LORAN-C STATUS AS OF 30 DECEMBER 1996

Loran-C Stations for 8290/9940 Chains are on air.

For information regarding the Loran-C System, contact the Chief of Chain
Operations West Coast at (707)765-7590.

LNM 01/97 dated 30 December 1996.

# TERMINATION OF TRANSIT NAVIGATION SYSTEM

In accordance with the Chairman of the Joint Chiefs of Staff Master
Navigation Plan, the Navy Navigation Satellite System (transit) will
cease operations on 31 December 1996. Satellite navigation services are
now, and will continue to be, available from the Global Positioning
System (GPS). Questions should be directed to the Naval Satellite
Operations Center (NAVSOC), in Point Mugu, CA, at (805)989-4221.

LNM 50/96 dated 10 December 1996.

# OMEGA RADIONAVIGATION SYSTEM TERMINATION

The Coast Guard intends to terminate its involvement in the worldwide
Omega Radionavigation System on 30 September 1997. This will include
closure of the two stations located in the U.S. (Lamoure, North Dakota
and Haiku, Hawaii) and termination of the existing bilateral agreements
with the six partner nations (Argentina, Australia, France, Japan,
Liberia, and Norway).

The Omega navigation system primarily serves aviation and weather users.
The Department of Transportation recently completed its review of Omega
navigation requirements and notified the U.S. Coast Guard that most
users will complete their conversion to Global Positioning System
technology by September 1997.

For further information contact Mr. Stewart Shoulta, Radio Aids Division
(G-OPN-3), U.S. Coast Guard Headquarters, 2100 Second St. SW,
Washington, D.C. 20593-0001, or phone (202) 267-6052.

LNM 44/96 dated 29 October 1996.

# D-GPS STATUS AS OF 30 DECEMBER 1996

All dGPS sites are on air.

The Point Arguello site is scheduled to be off-air from 1500Z on 15
January 1997 to 0100z on 17 January 1997.

For information regarding the dGPS system, or for status updates contact
the Petaluma Control Center at (707)765-7612/7613.

LNM 01/97 dated 30 December 1996.

# USE OF GPS FOR ELECTRONIC POSITION FIXING

In the Federal Register dated March 23, 1994 \[59 FR 13757-59\], the U.
S. Coast Guard announced that Global Positioning System (GPS) receivers
met the carriage requirements for electronic position fixing devices as
required in Title 33, Code of Federal Regulations, Part 164.41(a)(2)
\[33 CFR 164.41(a)(2)\]. Because of the number of inquiries regarding
the use of GPS for position fixing, we are readvertising this item of
interest. Copies of the Federal Register notice are available from the
Coast Guard's Navigation Center: Internet
(http://www.navcen.uscg.mil/gps/ggeninfo/IOC-CAR.TXT); Bulletin Board
Service (703)313-5910; Fax on Demand (703)313-5931/5932; Boating Safety
Hotline (800)368-5647.

LNM 50/96 dated 10 December 1996.

# D-GPS USER SAFETY ADVISORY

The Coast Guard Navigation Information Service (NIS) recently received
reports of dGPS receivers apparently ignoring the broadcast alarm which
should signal the immediate discontinuation of a particular satellite
correction. In accordance with international and industry standards
\[RTCM SC104\], the USCG dGPS broadcast sets a satellite correction to
the defined "do-not-use" value of 10485.76 meters if broadcast integrity
checks indicate there is a problem with that satellite's correction.
Reports indicate some user equipment does not properly recognize this
"do-not-use" correction flag and instead erroneously processes it as a
correction. This can result in position errors as large as 15,000 meters
while the receiver is in dGPS mode. Users should contact the
manufacturer of their equipment immediately to determine if they require
a receiver upgrade.

LNM 44/96 dated 29 October 1996.

Special Notices (cont'd)

# SHIP ROUTING STUDY

A two year ship movement study is currently in progress for the Naval
Air Warfare Center, Point Mugu Sea Test Range. This study is being
conducted to determine the amount and type of shipping traffic
transiting the Sea Test Range (STR). Information obtained from
participating vessels will be utilized to determine the frequency of
transit and most frequently utilized transit routes. Results of the
study may be used to enhance the safety of all vessels transiting
through or maneuvering within the STR and to formulate the most
advantageous transit routes that least impact missile firing operations.
Vessel cooperation and assistance is requested in this effort by asking
that the following information be provided prior to entering the STR:

A. Vessel name, flag and radio call sign,

B. Vessel type and gross tonnage,

C. Vessel engine type and type of fuel used,

D. Last port of call/Next port of call,

E. ETA at Sea Test Range and ETD from Sea Test Range,

F. Route through the STR (N, S, E or W)

Vessels are requested to contact PLEAD Control on 5081.5 Hz (5080Hz) or
3238.5 Hz (3237Hz). Commercial/cellular phone (805) 989-8841. Prior to
arrival on the STR or when leaving port, the above information may also
be faxed to Mr. S. Robinson at (805) 488-3582.

LNM 21/95 dated 23 May 1995.

# II. DISCREPANCIES / DISCREPANCIES CORRECTED

DISCREPANCIES: (bold type and \* denote new information since last LNM)
CHARTS BNM LNM

LLNR NAME OF AID STATUS AFFECTED REF. REF.

5.00 POINT LOMA LIGHT REDUCED INTENSITY/OBSCURED 18740 1043-95 46/95

330.00 PILLAR POINT HBR APPROACH LWB PP MISSING 18680 0986-9I6 52/96

510.00 NOAA ENVIRONMENTAL LB EB 46006 EXTINGUISHED 18620 0372-94 18/94

2440.00 NEWPORT WEST JETTY LT 3 FOG SIGNAL-INOPERATIVE 18754 0959-96
51/96

3290.00 CABRILLO BEACH LAUNCH RAMP NORTH LT EXTINGUISHED 18751 0696-96
39/96

3420.00 EL SEGUNDO LGB 10ES FOG SIGNAL-INOPERATIVE 18744 0925-96 50/96

3720.00 VENTURA MARINA CHANNEL BUOY 9 MISSING 18725 0968-96 51/96

4365.00 CORINTHIAN HARBOR LIGHT 2 REPORTED EXTINGUISHED 18649 1001-96
01/97\*

4917.00 HUNTERS POINT RANGE FRONT LT EXTINGUISHED 18649 0755-96 42/96

4918.00 HUNTERS POINT RANGE REAR LT IMPROPER CHARACTERISTIC 18649
0755-96 42/96

5445.00 BERKELEY BREAKWATER CENTER LIGHT EXTINGUISHED 18649 1005-96
01/97\*

5790.00 MOLATE POINT WHARF SOUTH END LT FOG SIGNAL-REDUCED INTENSITY
18649 1151-95 50/95

6260.00 MARTINEZ MARINA LIGHT 2 IMPROPER CHARACTERISITC 18656 0926-96
50/96

7385.00 SACRAMENTO RIVER DWSC LIGHT 45 REPORTED EXTINGUISHED 18662
0990-96 52/96

8375.00 CRESCENT CITY HARBOR LBB 6 EXTINGUISHED 18603 0988-96 52/96

DISCREPANCIES CORRECTED:

0.00 OCEANSIDE TEMPORTARY SHOAL BUOY MISSING 18774 0987-96 52/96

7615.00 SACRAMENTO DWSC LIGHT 86 DAYBOARD MISSING 18662 0993-96 52/96

III\. TEMPORARY CHANGES/TEMPORARY CHANGES CORRECTED -
ESTABLISHED/DISCONTINUED AIDS

TEMPORARY CHANGES: (bold type and \* denote new information since last
LNM) CHARTS BNM LNM

LLNR NAME OF AID STATUS AFFECTED REF. REF.

0.00 SAUSALITO CHANNEL LIGHTED BUOY WR1 TEMPORARILY ESTABLISHED 18649
0798-96 43/96

0.00 SAUSALITO CHAN LIGHTED BUOYS A & B TEMPORARILY ESTABLISHED 18649
0911-96 49/96

1615.00 NORTH ISLAND LIGHT 2 TEMPORARILY DISCONTINUED 18773 0482-96
27/96

2470.00 NEWPORT BAY CHANNEL LIGHT 11 TRLB 18754 0597-95 24/95

3221.00 RESERVATION POINT NORTH BUOY TEMPORARILY DISCONTINUED 18751 N/A
29/96

3222.00 RESERVATION POINT MIDDLE BUOY TEMPORARILY DISCONTINUED 18751 N/A
29/96

3223.00 RESERVATION POINT SOUTH BUOY TEMPORARILY DISCONTINUED 18751 N/A
29/96

3690.00 VENTURA HARBOR CHANNEL BUOY 4 TEMPORARILY DISCONTINUED 18725
0904-96 48/96

3855.1 MORRO BAY LIGHTED BUOY 4A TEMPORARILY DISCONTINUED 18703 1197-95
51/95

4605.00 OAKLAND HBR BAR CHAN LBB 1 TEMPORARILY RELOCATED 18649 1229-95
52/95

4606.00 OAKLAND HBR BAR CHAN LB 2 TEMPORARILY RELOCATED 18649 1154-95
50/95

4630.00 OAKLAND OUTER HARBOR LIGHTED BUOY 1B TEMPORARILY RELOCATED 18649
0235-96 38/95

4645.00 OAKLAND OUTER HARBOR LIGHTED BUOY 3 TEMPORARILY RELOCATED 18649
1229-95 38/95

4650.00 OAKLAND OUTER HARBOR LIGHTED BUOY 5 TEMPORARILY RELOCATED 18649
1229-95 38/95

4720.00 SAN LEANDRO AIRPORT CHAN DBN 1 TRUB 18649 0864-96 47/96

TEMPORARY CHANGES CORRECTED:

None.

# IV. CHART CORRECTIONS 

EXPLANATION OF FORMAT - Corrective action affecting charts is contained
in this section. Chart corrections are listed numerically by chart
number, beginning with the lowest and progressing through all charts
affected. Each correction pertains to a particular chart and to that
chart only. Related charts, if any, have their own corrections which in
turn pertain to a single chart only. The following example explains the
individual elements of a typical correction:

Chart Chart Edition Last Local Notice Reference Source of Current Notice

number edition date to Mariners datum correction to Mariners

\| \| \| \| \| \| \|

18649 53^rd^ ed. 5/6/89 Last LNM 35/89 NAD 83 (CGD11) 37/89

(Temp) CA - San Francisco Bay - General location

Add Embonee Channel Light 1 Fl R 2.5s 7M 37²48'00"N, 122²15'00"W

\| \| \|

Corrective Object of corrective Position

action action

(Temp) located below the chart number indicates that the corrective
action is temporary. Courses and bearings are given in degrees clockwise
from 000² True. Bearings of light sectors are toward the light from
seaward. The nominal range of a light is expressed in nautical miles,
(e.g. 7M).

None.

# V. ADVANCE NOTICE OF CHANGES IN AIDS TO NAVIGATION 

SOUTHERN CALIFORNIA - SAN DIEGO BAY - AID ESTABLISHMENT - The U.S. Coast
Guard will establish two lights in San Diego Bay to mark the North
Island Shallow Water Habitat. These lights will mark the rock structures
located outside the Main Channel in the vicinity of North Island Light
4. The lights to be established are: North Island Shallow Water Habitat
Light A (LLNR 1616), Fl W 4s, 15ft, 4M, "A" in position 32²42'09"N,
117²13'30"W; and, North Island Shallow Water Habitat Light B (LLNR
1617), Fl W 4s, 15ft, 4M, "B" in position 32²42'16"N, 117²13'23"W. The
lights will be established in February 1997. Comments may be directed to
Commander (pow), Eleventh Coast Guard District, Coast Guard Island,
Bldg. 50-6, Alameda, CA 94501-5100, Attn: LT Anne Burkhardt, or call
(510) 437-2978.

## Chart 18773 LNM 51/96 dated 17 December 1996

SOUTHERN CALIFORNIA - AID CHANGE - The Coast Guard will change the light
characteristics and nominal ranges of the following aids:

Aid: Characteristic: New Nominal Range:

Santa Catalina Island East End Light (LLNR 2605) Fl W 6s 10M

Long Point Light (LLNR 2625) Fl W 4s 10M

San Nicolas Island North Side Light (LLNR 2595) Fl W 6s 10M

San Clemente Island Light (LLNR 2575) Fl W 4s 10M

Any questions or comments can be forwarded to Commander (pow), Eleventh
Coast Guard District, Coast Guard Island, Bldg. 50-6, Alameda, CA
94501-5100, Attn: LTjg David Husted, or call (510) 437-2969.

Charts: 18720, 18728, 18740, 18746, 18755, 18757, 18762, 18763, 18764,
18774 LNM 10/95 dated 07 March 1995.

NORTHERN CALIFORNIA - MILE ROCKS - RANGE CHANGE - The U.S. Coast Guard
will increase the nominal range of Mile Rocks Light (LLNR 365) from 15
NM to 16 NM. Comments may be directed to Commander (pow), Eleventh Coast
Guard District, Coast Guard Island, Bldg. 50-6, Alameda, CA 94501-5100,
Attn: LTjg Dave Husted, or call (510) 437-2969.

Chart: 18680 LNM 50/96 dated 10 December 1996.

NORTHERN CALIFORNIA - CRESCENT CITY - RANGE CHANGE - The U.S. Coast
Guard will increase the nominal range of Crescent City Entrance Light
(LLNR 550/8370) from 11 NM to 12 NM. Comments may be directed to
Commander (pow), Eleventh Coast Guard District, Coast Guard Island,
Bldg. 50-6, Alameda, CA 94501-5100, Attn: LTjg Dave Husted, or call
(510) 437-2969.

Chart: 18603 LNM 50/96 dated 10 December 1996.

# VI. PROPOSED CHANGES IN AIDS TO NAVIGATION

SOUTHERN CALIFORNIA - SAN DIEGO BAY - AID DISCONTINUANCE - The U.S.
Coast Guard proposes to discontinue San Diego Bay North Island Light 2
(LLNR 1615). Comments may be directed to Commander (pow), Eleventh Coast
Guard District, Coast Guard Island, Bldg. 50-6, Alameda, CA 94501-5100,
Attn: LTjg Dave Husted, or call (510) 437-2969.

Chart: 18773 LNM 50/96 dated 10 December 1996.

NORTHERN CALIFORNIA - MOSS LANDING - PROPOSED AID CHANGE - The U.S.
Coast Guard proposes to change the characteristic of Moss Landing Light
2 (LLNR 4025) from Occulting Red 4 second to Flashing Red 2.5 second.
The nominal range will remain unchanged. Mariners may submit comments
regarding this proposed change to: Commander (Pow), Eleventh Coast Guard
District, Coast Guard Island, Building 50-6, Alameda, CA 94501-5100,
Attn. LTjg Dave Husted; or call (510) 437-2969.

## Chart: 18685 LNM 38/96 dated 17 September 1996

NORTHERN CALIFORNIA - CAPE MENDOCINO - PROPOSED AID CHANGE - The U.S.
Coast Guard proposes to change the sound signal of Blunts Reef Lighted
Horn Buoy 2B (ELB) (LLNR 485) to a bell. All other characteristics will
remain unchanged. Mariners may submit comments regarding this proposed
change to: Commander (Pow), Eleventh Coast Guard District, Coast Guard
Island, Building 50-6, Alameda, CA 94501-5100, Attn. LTjg Dawn
Salisbury; or call (510) 437-2982. Comments will be considered until 30
November 1996.

## Chart: 18620 LNM 39/96 dated 24 September 1996

NORTHERN CALIFORNIA - HUMBOLDT BAY - PROPOSED AID CHANGE - The U.S.
Coast Guard proposes to replace the following buoys in Hookton Channel
with lighted piles: Hookton Channel Lighted Buoy 1 (LLNR 8280), Lighted
Buoy 5 (LLNR 8305), Lighted Buoy 6 (LLNR 8310), Lighted Buoy 12 (LLNR
8340) and Lighted Buoy 13 (LLNR 8345). Comments may be directed to
Commander (pow), Eleventh Coast Guard District, Coast Guard Island,
Bldg. 50-6, Alameda, CA 94501-5100, Attn: LTjg Dave Husted, or call
(510) 437-2969.

Charts: 18620, 18622 LNM 11/95 dated 14 March 1995.

# VII. GENERAL INFORMATION

SOUTHERN CALIFORNIA - SAN DIEGO - OUTFALL CONSTRUCTION - Fletcher
General Constuction will be conducting construction operations at the
San Diego South Bay Outfall Project through 31 January 1997. One work
site will be at the outfall approximately 3NM offshore at the
U.S.-Mexico boarder. The second site is in South San Diego Bay at the
Sweetwater Channel. Vessels on scene at both sites will monitor Channels
16 and 66 VHF-FM.

Charts: 18765, 18773 LNM 17/96 dated 23 April 1996.

SOUTHERN CALIFORNIA - SAN DIEGO BAY - DREDGING OPERATIONS - Marathon
Construction Corporation will be conducting dredging operations at the
10^th^ Avenue Marine Terminal through April 1997.

## Chart: 18773 LNM 49/96 dated 03 December 1996

SOUTHERN CALIFORNIA - SAN DIEGO BAY - SCIENTIFIC RESEARCH OPERATIONS -
As part of a biological research project, Scripps Institution of
Oceanography has deployed research equipment at seven locations
throughout the San Diego Bay. Each location is marked with a surface
float with white reflective material. The equipment will remain in place
for approximately two months in the following positions: 1) 32²36'30"N,
117²07'15"W, 2) 32²38'37"N, 117²07'21"W, 3) 32²39'22"N, 117²07'45"W, 4)
32²42'29"N, 117²10'18"W, 5) 32²43'27"N, 117²12'00"W, 6) 32²43'00"N,
117²13'14"W, 7) 32²41'00"N, 117²13'35"W.

## Chart: 18773 LNM 43/96 dated 22 October 1996

SOUTHERN CALIFORNIA - CATALINA ISLAND/SAN DIEGO HARBOR - ROCK
TRANSPORTATION - Connolly-Pacific will be transporting rock between the
Pebbly Beach Quarry at Catalina Island and the NAS North Island Aircraft
Carrier Base Project in San Diego Bay through 01 February 1997. The Tug
PACIFIC MARINER and the Tug LARCONA will be conducting tandem tows seven
days per week. Both tugs will monitor Channels 13 and 16 VHF-FM while in
transit, and Channel 82A when at the North Island jobsite.

Chart: 18746, 18765, 18773, 18774 LNM 47/96 dated 19 November 1996.

SOUTHERN CALIFORNIA - NEWPORT BAY - JETTY REPAIRS - J. E. McAmis will be
conducting jetty repairs to the East and West jetties at Newport Bay
Harbor through 31 January 1997. Operations will be conducted between
0700U and 1800U daily. The Derrick Barge CRYSTAL GAYLE and the Tug HELEN
G will be onscene with a ramp barge.

Chart: 18754 LNM 46/96 dated 12 November 1996.

General Information (cont'd)

SOUTHERN CALIFORNIA - NEWPORT BAY - DREDGING OPERATIONS - Soli-Flo will
be conducting dredging operations at the Newport Dunes Marina in Newport
Bay. Operations will take place Monday through Saturday from 0700U to
1900U through May 1997. The Dredge TERRA-FLO will be onscene and will
monitor Channels 7, 9, 13 and 16 VHF-FM. A temporary mooring will be
created for a

construction barge in position 33²37'13.9"N, 117²53'40.7"W. The mooring
will be in place through 30 April 1997.

## Chart 18754 LNM 50/96 dated 10 December 1996

SOUTHERN CALIFORNIA - ALAMITOS BAY - DREDGING OPERATIONS - The City of
Long Beach has begun dredging operations at the entrance to Alamitos
Bay. Dredging will be in the vicinity of position 33²44.6'N, 118²07.0'W
through 15 March 1997. The LONG BEACH DREDGE and Tender GRUNT will be
onscene and will monitor Channels 13 and 16 VHF-FM.

Charts: 18749 LNM 36/96 dated 03 September 1996.

SOUTHERN CALIFORNIA - ANAHEIM BAY - WATERWAYS ANALYSIS STUDY - The U.S.
Coast Guard is conducting a Waterways Analysis and Management System
(WAMS) study of Anaheim Bay. The study focuses on the waterway's aids to
navigation system, waterborne commerce, marine casualty information,
port/harbor resources, emergency response plans, routine and emergency
communication capablities, and future development projects. Any
interested company or individual wishing to provide comments or
participate in a user survey should contact: Officer in Charge; USCG ANT
Los Angeles/Long Beach; P.O. Box 8, Terminal Island; San Pedro, CA
90731; ATTN: WAMS Coordinator; or, call (310)514-6497.

## Chart: 18749 LNM 43/96 dated 22 October 1996

SOUTHERN CALIFORNIA - LONG BEACH PIER J - MARINE CONSTRUCTION - Dutra
Construction will be conducting rock replenishment and breakwater
construction in Long Beach Harbor at Pier J Berths J260 and J270 through
30 April 1997. Operations will be conducted 5 days per week, during
daylight hours. Barges and dump scows will transit to and from Catalina
Island with replenishment materials. The Derrick Barges DB-25 and
AMERICAN will be onscene and will monitor Channels 13 and 79A VHF-FM. A
temporary buoy has been set in position 33²44'02.6"N, 118²10'55.4"W to
assist with this project. The vessels onscene will monitor Channel 82
VHF-FM.

Charts: 18749, 18751 LNM 10/96 dated 05 March 1996.

SOUTHERN CALIFORNIA - LONG BEACH BERTH B - DREDGING OPERATIONS - Manson
Construction will be conducting dredging operations in the Port of Long
Beach at Berths B 76 to B 80, and Berth E 22 to E 24 from 02 to 16
January 1997. The Dredge ANDREW will be onscene.

Charts: 18749, 18751 LNM 01/97 dated 30 December 1996.

SOUTHERN CALIFORNIA - CERRITOS CHANNEL - PILE DRIVING - The Derrick
Barge VALKYRIE will be conducting pile driving operations on the north
side of the Cerritos Channel Harbor through March 1997. Mariners can
contact VALKYRIE on Channel 13 VHF-FM.

Chart: 18751 LNM 09/96 dated 27 February 1996.

SOUTHERN CALIFORNIA - PIERPONT BAY - VENTURA - HAZARD TO NAVIGATION -
Approximately 500 feet of the Ventura Pier has been destroyed. Numerous
submerged pilings are in the vicinity and present a hazard to
navigation. Mariners should transit the area with extreme caution.

Chart: 18725 LNM 01/97 dated 30 December 1996.

NORTHERN CALIFORNIA - SAN LUIS OBISPO - DREDGING OPERATIONS - The Port
San Luis Harbor District will be conducting maintenance dredging through
31 January 1997 at the sport launch basin and mobile boat hoist launch
in San Luis Obispo Bay. All dredging equipment will be stationed
shoreside. No aids to navigation will be marking the worksite.

## Chart: 18704 LNM 44/96 dated 29 October 1996

NORTHERN CALIFORNIA - SANTA CRUZ HARBOR - DREDGING OPERATIONS - The
Santa Cruz Port District will be conducting dredging operations in the
Inner Harbor and at the harbor entrance through April 1997. The Dredge
SEABRIGHT and Dredge Tender DAUNTLESS will be onscene and will monitor
Channel 16 VHF-FM. During dredging operations, the harbor entrance may
still be hazardous to navigation at times with hard-breaking surf and
shallow bar conditions. Mariners can contact the Santa Cruz Harbormaster
on Channel 16 VHF-FM for entrance conditions and dredge passing
instructions.

Chart: 18685 LNM 50/96 dated 10 December 1996.

NORTHERN CALIFORNIA - RICHARDSON BAY - DREDGING OPERATIONS - Western
Dock Enterprises will be conducting dredging operations at the Clipper
Yacht Harbor in Richardson Bay through 31 August 1997. The Tug MUDHEN
will be onscene and will monitor Channels 13, 14, and 79 VHF-FM. Dump
scows will be transported to and from the Alcatraz Disposal Site with
dredged materials.

Charts: 18649, 18652, 18653 LNM 04/96 dated 23 January 1996.

NORTHERN CALIFORNIA - SAN FRANCISCO BAY - NAPA RIVER - REASEARCH GEAR -
The University of California, Davis will deploy several research arrays
in the Napa River through March 1997. These arrays will be placed
outside the main channel and should not interfere with vessel traffic.
The arrays will be placed in the following positions:

1\) 38²14'45"N, 122²17'05"W - North of the Highway 29 Bridge, east of
the main channel.

2\) 38²11'30"N, 122²18'00"W - South of the Brazos Railroad Bridge, east
of the main channel.

3\) 38²06'00"N, 122²16'25"W - South of the Mare Island Tennessee Street
Bridge, east of the main channel.

## 4) 38²04'55"N, 122²14'55"W - Near Mare Island Lighted Buoy 5.

Each location is marked with a white surface float with the word
"HAZARD" on it.

Chart: 18654 LNM 52/96 dated 23 December 1996.

NORTHERN CALIFORNIA - SAN FRANCISCO BAY - SAN RAFAEL CREEK - DREDGING
OPERATIONS - Western Dock Enterprises will be conducting dredging
operations in San Rafael Creek southwest of San Pablo Bay Light 17 (LLNR
5970) through 15 January 1998. The dredge will be anchored and marked
with yellow lighted buoys. The Tug ELCIE M will be onscene and will
monitor Channels 13, 14 and 79 VHF-FM. The tug will be transiting to and
from the San Pablo Disposal Site 10 with dredge scows. Operations are to
take place 12 hours per day from Monday through Saturday.

Chart: 18654 LNM 12/95 dated 21 March 1995.

NORTHERN CALIFORNIA - SAN RAFAEL CREEK - DREDGING OPERATIONS - Western
Dock Enterprises will be conducting dredging operations at the Loch
Lomond Marina at the San Rafael Creek through 31 October 1998.
Operations will be conducted 12 hours per day, Monday through Friday.
The Tug ELCIE M will be onscene and will monitor Channels 13, 14, and 79
VHF-FM. Barges will be moored southwest of San Pablo Bay Light 17.

Chart: 18653 LNM 47/96 dated 19 November 1996.

NORTHERN CALIFORNIA - CARQUINEZ STRAIT - DREDGING OPERATIONS - Salt
River Construction will be conducting dredging operations at Glen Cove
Marina through 31 March 1997. The Tug IRENE LAURITZEN, Crane Barge
BARBARA ANN, and Mud Scow DORTHY B will be onscene and will moitor
Channels 13 and 78 VHF-FM.

## Chart: 18657 LNM 41/96 dated 08 October 1996

NORTHERN CALIFORNIA - SAN JOAQUIN RIVER DELTA - ROCK BARRIERS - Two
agricultural rock barriers are in operation in the delta area. One at
the Middle River (37²53'08"N, 121²28'55"W), and the second at the Grant
Line Canal (37²49'00"N, 121²27'00"W). The barrier at the Head of the Old
River has been removed.

## Chart: 18661 LNM 32/96 dated 06 August 1996

NORTHERN CALIFORNIA - SAN JOAQUIN RIVER - DREDGING OPERATIONS - Ross
Island Dredging will be conducting dredging operations in the San
Joaquin River between Lighted Buoy 21 (LLNR 6745) and Light 24 (LLNR
6755) through 04 January 1996. Dredging will be conducted 24-hours per
day. Dredge #7 will be onscene and will monitor Channel 13 VHF-FM.
Mariners are to avoid entering Gallagher Slough from the southwest inlet
due to submerged pipeline.

Chart: 18661 LNM 51/96 dated 17 December 1996.

NORTHERN CALIFORNIA - MONTEZUMA SLOUGH - BOAT LOCKS IN SERVICE - The
California Department of Water Resources will operate their boat locks
at the Solano Control Stucture, 2.2 nautical miles from the eastern end
of Montezuma Slough (at 38²05'36"N, 121²53'07"W) through 31 May 1997.
During this period, the stop logs will be in place across the
maintenance channel and vessels will only be allowed to pass through the
boat lock. The lock is located on the east side of the channel and
provides the following clearances: 16 feet horizontal; 9 feet over the
sill at MLLW; 70 feet in length between sector gates; and, no vertical
restriction. Boat lock operation hours will be 0900U to 1700U through 30
April 1996 and 0600T to 2200T in May. The boat lock signal is a

General Information (cont'd)

standard traffic light. The locks will monitor Channel 13 VHF-FM during

operating hours. Full instructions on passage including emergency phone
number are posted on site. Piers will be marked with fixed red lights
and other portions of the structure by fixed yellow lights. Mariners
should be aware of shoal areas along the east bank on both sides of the
structure extending approximately 50 feet from the existing levee. Buoys

have been set to identify this area. When in operation, currents on site
may be greater than those predicted for other areas of Montezuma Slough.

Chart: 18661 LNM 47/96 dated 19 November 1996.

NORTHERN CALIFORNIA - BODEGA AND TOMALES BAY - The Coast Guard is
conducting a Waterways Analysis and Management System (WAMS) study of
Bodega Bay and Tomales Bay. The study focuses on the area's aids to
navigation system, waterborne commerce, marine casualty information,
port/harbor resources, emergency response plans, routine and emergency
communication capabilities, and future development projects. Any
interested company or individual wishing to provide comments or
participate in a user survey should contact:

Commander

USCG GROUP SAN FRANCISCO

Yerba Buena Island

San Francisco, CA 94130-5013

Attn: ATON Officer

\(415\) 399-3442

Chart: 18643 LNM 47/96 dated 19 November 1996.

NORTHERN CALIFORNIA - HUMBOLDT BAY - BUOY DEPLOYMENT - The Woods Hole
Oceanographic Institution has deployed two temporary buoys offshore of
the Humboldt Bay entrance through 27 March 1997. The buoys are yellow
with yellow flashing lights (Fl Y 4s) and radar reflectors, and are set
in the following positions: 1) 40²41.4'N, 124²21.0'W; and, 2) 40²43.6'N,
124²24.5'W.

Chart: 18620 LNM 48/96 dated 26 November 1996.

NORTHERN CALIFORNIA - OFFSHORE EUREKA/EEL RIVER - RESEARCH INSTRUMENT
DEPLOYMENT - The University of Washington has deployed a seabed research
array in the waters offshore Eureka, California and the Eel River. The
array is located on the Eel River Shelf in approximate position
40²53.3'N, 124²15.2'W in 33 fathoms of water. This array is marked by
two unlighted floats consisting of 12 inch spheres and pot markers.
Mariners should refrain from conducting trawling or crab fishing
operations in this area.

Charts: 18620 LNM 32/96 dated 06 August 1996.

NORTHERN CALIFORNIA - EUREKA - GEAR DEPLOYMENT - The U. S. Geological
Survey has deployed three scientific instrument packages off the norther
California coast near Eureka. The packages contain sensors and
electronic self-contained recording devices to measure currents, waves,
tides, and sediment concentrations near the seabed. The systems are
located in the following positions: 1) 40²43'21.4"N, 124²25'05.3"W in
63.8 meters of water; 2) 40²41'25.4"N, 124²21'15.0"W in 30.7 meters of
water; and, 3) 40²46'23.5"N, 124²21'27.7"W in 59.5 meters of water.

Chart: 18620 LNM 49/96 dated 03 December 1996.

NORTHERN CALIFORNIA - HUMBOLDT BAY - BUOY DEPLOYMENT - The Woods Hole
Oceanographic Institution will deploy two temporary buoys offshore of
the Humboldt Bay entrance through 27 March 1997. The buoys are yellow
with yellow flashing lights (Fl Y 4s) and radar reflectors.

Chart: 18620 LNM 48/96 dated 26 November 1996.

# BRIDGE INFORMATION - DISCREPANCIES AND CORRECTIONS -

Questions regarding bridge operations, regulations or permit
applications, please contact: Eleventh Coast Guard District Bridge
Section, Coast Guard Island, Building 50-6, Alameda, CA 94501-5100
Phone: (510) 437-3514.

SOUTHERN CALIFORNIA - SAN DIEGO BAY - CORONADO BRIDGE. The fender on the
northwest side of pier 21 has been damaged.

## Chart: 18773

SOUTHERN CALIFORNIA - CERRITOS CHANNEL - FORD (BADGER AVENUE) BRIDGE.
Tug/barge operators are required to give one hour advance notice for
transits of the Ford Bridge. Give notice to the workboat Little Badger
on VHF-FM channel 13, and confirm time of passage when you are at the
turning basin. This notice will provide time for workers to safely leave
the cofferdams and to clear the channel of floating equipment. Vessel
operators are requested to proceed slowly when transiting. To be placed
on Kajima Construction Inc.'s facsimile list for weekly updates, call
(310) 233-2749.

## Chart: 18751

NORTHERN CALIFORNIA - CHINA BASIN - 3^RD^ STREET AND 4^TH^ STREET
BASCULE BRIDGES AND ISLAIS CREEK - 3^RD^ STREET BRIDGE. Traffic
congestion has increased across these bridges because of the Central
Freeway closure. The Coast Guard is asking vessel operators to
voluntarily avoid transits between 7-9 a.m. and 4-6 p.m. Mondays through
Fridays.

## Charts: 18649, 18650, 18652

NORTHERN CALIFORNIA - SAN FRANCISCO BAY - CORTE MADERA CREEK - U.S. 101
BRIDGE. Horizontal clearance past all trestles is limited to 33 feet.
The main navigation openings may be briefly spanned to transport
materials, at which time vertical clearance is limited to approximately
2 ft. at Mean High Water. The span can be removed on half hour advance
notice by calling (415) 332-9680 or pager (510) 442-2060.

## Charts: 18649, 18652

NORTHERN CALIFORNIA - SAN FRANCISCO BAY - SAN FRANCISCO-OAKLAND BAY
BRIDGE - SCAFFOLD STATUS. Scaffolding is in use on the west bay bridge
between piers D and E, and piers A and B. On the east bay bridge,
scaffolding is between piers G and M. Scaffolding reduces vertical
clearance by as much as 10 feet, and is lighted if left in the channel
overnight.

## Charts: 18649, 18650, 18652

NORTHERN CALIFORNIA - SAN FRANCISCO BAY - OAKLAND INNER HARBOR -
FRUITVALE AVENUE HIGHWAY BRIDGE. The City of Alameda will begin work on
the bridge railings starting in mid-February of 1997. Delays of up to 10
minutes may be needed to clear workers and traffic cones from the
bridge.

## Charts: 18649 18650 18652 

NORTHERN CALIFORNIA-SAN FRANCISCO BAY-NAPA RIVER-MARE ISLAND CAUSEWAY.
The telephone number to give advance notice for night openings of the
Mare Island Causeway has been changed to (707) 648-4313. Notice may also
be given to the bridgetender at (707) 649-3556.

## Charts: 18652, 18654, 18655

NORTHERN CALIFORNIA - SAN FRANCISCO BAY - SAN PABLO BAY -NAPA RIVER -
STATE ROUTE 37 BRIDGE. Seismic retrofit of the bridge continues. A
floating walkway extends approximately 700 ft. from the west shore, and
is marked. A spudded barge, call sign GC 26, on scene is lighted, and is
not in the main navigation channel at night. A work trestle is under
construction extending from the east bank out to the piers at the main
channel. For further information, call Mr. Jim Durnford at Fletcher
General Construction (707) 643-9588. Construction is expected through
December 1997.

Chart: 18652, 18654, 18655

Bridge Information (cont'd)

NORTHERN CALIFORNIA - SAN FRANCISCO BAY - CARQUINEZ STRAIT - CARQUINEZ
I-80 HIGHWAY BRIDGE. CalTrans will use scaffolding at the bridge for
painting on the Contra Costa County side through mid-January 1997.
Scaffold work will take place weekdays from approximately 9

a.m. until 2 p.m. The vertical clearance will be reduced by
approximately 10 ft.

## Charts: 18652, 18654, 18655, 18656 

NORTHERN CALIFORNIA - SAN FRANCISCO BAY - SAN JOAQUIN RIVER - ANTIOCH
HIGHWAY BRIDGE. Racon "Z" (LLNR 6717) at the center of the main
navigation span is missing, but reinstallation is anticipated on or
about January 15, 1996.

## Chart: 18652, 18661

NORTHERN CALIFORNIA - SAN JOAQUIN RIVER - OLD RIVER - GRANT LINE CANAL.
The County of San Joaquin will paint the Tracy Blvd. Drawbridge, near
Tracy, from 6 January 1997 until the end of the month. Scaffolding will
be used during the daytime hours, reducing vertical clearance by 3-4
feet. Scaffolding can be moved if needed for an opening by giving the
normal 12 hours advance notice. At night scaffolding will be removed.

## Chart: 18661

NORTHERN CALIFORNIA - SACRAMENTO RIVER DELTA - MOKELUMNE RIVER - WALNUT
GROVE SACRAMENTO-SAN JOAQUIN COUNTY (MILLER'S FERRY) BRIDGE. The
electric motor/gearbox repair work is completed, and the bridge is back
in service.

## Chart: 18661

NORTHERN CALIFORNIA - SACRAMENTO RIVER - RIO VISTA SR 12 HIGHWAY
VERTICAL LIFT BRIDGE CalTrans advises that they installed the permanent
replacement generator at the Rio Vista Bridge. In the event of
commercial power failure during bridge openings, vessels should not
experience delays.

## Charts: 18652 18661 

NORTHERN CALIFORNIA - SACRAMENTO RIVER - SACRAMENTO BARGE CANAL.
Construction continues on the new Industrial Boulevard Bridge upstream
of the Port of Sacramento Turning Basin. A temporary trestle extends
across the waterway, providing approximately 6 ft. vertical clearance
above Mean High Water, 27 feet horizontal clearance between pile bents.
The main navigation opening has been marked with yellow flashing lights.
A boom has been placed to help direct vessels past the navigation
opening. Work is expected to continue through April 1997.

## Chart: 18662

NORTHERN CALIFORNIA - HUMBOLDT BAY - EUREKA SLOUGH - U.S. 101 BRIDGE.
CalTrans is painting the bridge. Vertical clearance under the bridge is
reduced by approximately 7 feet. A barge will also reduce the horizontal
clearance by approximately 20 feet, during the daytime. Work should
conclude in approximately January 22, 1997.

## Chart: 18622 

NORTHERN CALIFORNIA - REDUCED CLEARANCES DUE TO HIGH WATER. Recent
storms have raised water levels significantly, and high runoff has
carried debris into the navigation channels. The vertical clearances
available at bridges may be less than that shown on nautical charts.
Mariners are urged to use caution, and report any aids to navigation
outages (including bridge lights) to the nearest Coast Guard unit.

# VIII. CORRECTIONS TO LIGHT LIST, VOLUME VI; PACIFIC COAST AND PACIFIC ISLANDS 1996:

None.

# IX. ADDITIONAL ENCLOSURES

None.

## M. L. VAN HOUTEN

Chief, Aids to Navigation Section

Waterways Management Branch

Eleventh Coast Guard District2

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30 December 1996 Page \# of 6 LNM 01/97