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Bench Mark Sheet for 9414816, BERKELEY,S.F.BAY

Superseded Epoch

Large map location marker Station Location
Small red map location marker Published bench mark
Small blue map location marker Unpublished bench mark

Bench mark positions only appear on the map if their coordinates in the CO-OPS database are at the precision of degrees/minutes/seconds/and tenths of seconds. If the coordinates are less precise, the mark will not appear.

Printable version

                          U.S. DEPARTMENT OF COMMERCE
                National Oceanic and Atmospheric Administration
                            National Ocean Service
Datums Page                                                        Page  1 of  9

                                                                                
Station ID: 9414816                         PUBLICATION DATE:  03/09/2004
Name:       BERKELEY,S.F.BAY                                  
            CA
NOAA Chart: 18649                           Latitude:   37° 51.9' N (  37.86500)
USGS Quad:  OAKLAND WEST                    Longitude: 122° 18.4' W (-122.30700)


To reach the tidal bench marks proceed north along Highway 17/80 (Eastshore
Highway), exit at University Avenue, west to Marina Boulevard (0.8 km (0.5 mi)
west of freeway), then 30.48 m (100.0 ft) beyond Marina Boulevard, turn south
into dirt parking area.  Tide tide gage and staff were located on seawall
between two boat houses at the City of Berkeley Marina, South Basin.


                         T I D A L   B E N C H   M A R K S
                          U.S. DEPARTMENT OF COMMERCE
                National Oceanic and Atmospheric Administration
                            National Ocean Service
                                                                   Page  2 of  9

                                                                                
Station ID: 9414816                         PUBLICATION DATE:  03/09/2004
Name:       BERKELEY,S.F.BAY                                  
            CA
NOAA Chart: 18649                           Latitude:   37° 51.9' N (  37.86500)
USGS Quad:  OAKLAND WEST                    Longitude: 122° 18.4' W (-122.30700)


                         T I D A L   B E N C H   M A R K S


                 PRIMARY BENCH MARK STAMPING:   
                         DESIGNATION:          941 4816 CITY MONUMENT 1
                         ALIAS:                NO STAMPING 1

MONUMENTATION:           See descriptive text                  VM#:         8419
AGENCY:                  City of Berkeley                      IDB PID#:        
SETTING CLASSIFICATION:  Street                                OPUS PID:        
LATITUDE:   37° 51.8' N (  37.86330)          LONGITUDE: 122° 18.7' W (-122.31200)


The primary bench mark is a City of Berkeley bronze pin set on street, below a
monument cover marked "City Monument", located near the intersection of
University Avenue and entrance to Angel Island, Tiburon Ferry Dock, 229 m (750
ft) east of first lamp post west of intersection, 12.13 m (39.8 ft) south of
University Avenue centerline and projected centerline of Angel Dock Entrance,
1.77 m (5.8 ft) SE of centerline of University Avenue, and 0.15 m (0.5 ft) below
cover.

                          U.S. DEPARTMENT OF COMMERCE
                National Oceanic and Atmospheric Administration
                            National Ocean Service
                                                                   Page  3 of  9

                                                                                
Station ID: 9414816                         PUBLICATION DATE:  03/09/2004
Name:       BERKELEY,S.F.BAY                                  
            CA
NOAA Chart: 18649                           Latitude:   37° 51.9' N (  37.86500)
USGS Quad:  OAKLAND WEST                    Longitude: 122° 18.4' W (-122.30700)


                         T I D A L   B E N C H   M A R K S


                         BENCH MARK STAMPING:   
                         DESIGNATION:          941 4816 CITY MONUMENT 2
                         ALIAS:                NO STAMPING 2

MONUMENTATION:           See descriptive text                  VM#:         8420
AGENCY:                  City of Berkeley                      IDB PID#:        
SETTING CLASSIFICATION:  Street                                OPUS PID:        
LATITUDE:   37° 51.8' N (  37.86330)          LONGITUDE: 122° 18.7' W (-122.31200)


The bench mark is a City of Berkeley bronze pin set on the street, below a
monument cover marked "City Monument", located at the "T" intersection of
University Avneue and Marina Boulevard, 267 m (875 ft) NE of sign marking
entrance of Berkeley Marina, 11 m (35 ft) south of a lamp post at beginning of
Marina Boulevard, 8 m (25 ft) east of sidewalk curb, and 0.15 m (0.5 ft) below
cover.

                          U.S. DEPARTMENT OF COMMERCE
                National Oceanic and Atmospheric Administration
                            National Ocean Service
                                                                   Page  4 of  9

                                                                                
Station ID: 9414816                         PUBLICATION DATE:  03/09/2004
Name:       BERKELEY,S.F.BAY                                  
            CA
NOAA Chart: 18649                           Latitude:   37° 51.9' N (  37.86500)
USGS Quad:  OAKLAND WEST                    Longitude: 122° 18.4' W (-122.30700)


                         T I D A L   B E N C H   M A R K S


                         BENCH MARK STAMPING:   
                         DESIGNATION:          941 4816 CITY MONUMENT 3
                         ALIAS:                NO STAMPING 3

MONUMENTATION:           See descriptive text                  VM#:         8421
AGENCY:                  City of Berkeley                      IDB PID#:        
SETTING CLASSIFICATION:  Street                                OPUS PID:        
LATITUDE:   37° 51.8' N (  37.86330)          LONGITUDE: 122° 18.7' W (-122.31200)


The bench mark is a City of Berkeley bronze pin set in street, below a monument
cover marked "City Monument", located on the centerline of Seawall Drive and the
projected centerline of the two-way portion of University Avenue, 38 m (125 ft)
east of intersection of Berkeley pier with shore, 15 m (50 ft) south of a
lightpole, and 0.15 m (0.5 ft) below level of street.

                          U.S. DEPARTMENT OF COMMERCE
                National Oceanic and Atmospheric Administration
                            National Ocean Service
                                                                   Page  5 of  9

                                                                                
Station ID: 9414816                         PUBLICATION DATE:  03/09/2004
Name:       BERKELEY,S.F.BAY                                  
            CA
NOAA Chart: 18649                           Latitude:   37° 51.9' N (  37.86500)
USGS Quad:  OAKLAND WEST                    Longitude: 122° 18.4' W (-122.30700)


                         T I D A L   B E N C H   M A R K S


                         BENCH MARK STAMPING:  YACHT 1947
                         DESIGNATION:          YACHT

MONUMENTATION:           Horizontal Station disk               VM#:         8422
AGENCY:                  US Coast and Geodetic Survey
                         (USC&GS)                              IDB PID#:  HT2935
SETTING CLASSIFICATION:  Concrete monument                     OPUS PID:        
LATITUDE:   37° 51.8' N (  37.86330)          LONGITUDE: 122° 19.0' W (-122.31700)


The bench mark is a disk set in a concrete monument under a 0.5 m (1.5 ft) by 
0.5 m (1.5 ft) cast iron lid in an asphalt area located at the southern corner
of the Berkeley Marina,  87 m (285 ft) east of Seawall Drive, 73 m (240 ft)
north of University Avenue, 23 m (75 ft) north of the NW corner of the parking
lot, 21 m ( 70 ft) east of the east edge of another parking lot, 6 m (20 ft)
south of the center of a 1 m (4 ft) diameter manhole cover, 3 m (10 ft) east of
a 2 m (5 ft) high metal transformer box, 0.76 m (2.5 ft) west of a fire hydrant,
and  0.46 m (1.5 ft) below the surface.        

                          U.S. DEPARTMENT OF COMMERCE
                National Oceanic and Atmospheric Administration
                            National Ocean Service
                                                                   Page  6 of  9

                                                                                
Station ID: 9414816                         PUBLICATION DATE:  03/09/2004
Name:       BERKELEY,S.F.BAY                                  
            CA
NOAA Chart: 18649                           Latitude:   37° 51.9' N (  37.86500)
USGS Quad:  OAKLAND WEST                    Longitude: 122° 18.4' W (-122.30700)


                         T I D A L   B E N C H   M A R K S


                         BENCH MARK STAMPING:  10 1947
                         DESIGNATION:          TIDAL 10 STA III 20

MONUMENTATION:           Bench Mark disk                       VM#:         8423
AGENCY:                  US Coast and Geodetic Survey
                         (USC&GS)                              IDB PID#:  HT0987
SETTING CLASSIFICATION:  Concrete base for a viaduct support   OPUS PID:        
LATITUDE:   37° 52.0' N (  37.86670)          LONGITUDE: 122° 18.1' W (-122.30200)


The bench mark is a disk set in top of NE corner of the concrete base for center
support of viaduct located at SE edge of 2nd Street, at intersection of Second
Street, under University Avenue vaiduct, 161 m (528 ft) SW of Southern Pacific
Company railroad station, and 0.27 m (0.9 ft) above street.

                          U.S. DEPARTMENT OF COMMERCE
                National Oceanic and Atmospheric Administration
                            National Ocean Service
                                                                   Page  7 of  9

                                                                                
Station ID: 9414816                         PUBLICATION DATE:  03/09/2004
Name:       BERKELEY,S.F.BAY                                  
            CA
NOAA Chart: 18649                           Latitude:   37° 51.9' N (  37.86500)
USGS Quad:  OAKLAND WEST                    Longitude: 122° 18.4' W (-122.30700)


                         T I D A L   B E N C H   M A R K S


                         BENCH MARK STAMPING:  C 558 1956
                         DESIGNATION:          C 558

MONUMENTATION:           Bench Mark disk                       VM#:         8424
AGENCY:                  US Coast and Geodetic Survey
                         (USC&GS)                              IDB PID#:  HT0985
SETTING CLASSIFICATION:  Column concrete base                  OPUS PID:        
LATITUDE:   37° 52.1' N (  37.86830)          LONGITUDE: 122° 18.0' W (-122.30000)


The bench mark is a disk set in top of NW corner of north one of two concrete
bases for the concrete column supporting the University Avenue vaiduct, 46 m
(150 ft) NE of Southern Pacific Company railroad station, 32.46 m (106.5 ft)
east of centerline of Third Street, and 0.3 m (1 ft) above asphalt parking lot.

                          U.S. DEPARTMENT OF COMMERCE
                National Oceanic and Atmospheric Administration
                            National Ocean Service
                                                                   Page  8 of  9

                                                                                
Station ID: 9414816                         PUBLICATION DATE:  03/09/2004
Name:       BERKELEY,S.F.BAY                                  
            CA
NOAA Chart: 18649                           Latitude:   37° 51.9' N (  37.86500)
USGS Quad:  OAKLAND WEST                    Longitude: 122° 18.4' W (-122.30700)


                            T I D A L   D A T U M S 


Tidal datums at BERKELEY,S.F.BAY based on:

     LENGTH OF SERIES:      2 MONTHS
     TIME PERIOD:           July 1979 - August 1979
     TIDAL EPOCH:           1983-2001
     CONTROL TIDE STATION:  9414290 SAN FRANCISCO, SAN FRANCISCO BAY


Elevations of tidal datums referred to Mean Lower Low Water (MLLW), in METERS:

     MEAN HIGHER HIGH WATER                     MHHW   =  1.860
     MEAN HIGH WATER                            MHW    =  1.672
     MEAN TIDE LEVEL                            MTL    =  1.010
     MEAN SEA LEVEL                             MSL    =  1.000
     MEAN LOW WATER                             MLW    =  0.347
     MEAN LOWER LOW WATER                       MLLW   =  0.000
     North American Vertical Datum              NAVD88 = -0.040

North American Vertical Datum (NAVD88)

Bench Mark Elevation Information                In METERS above:

     Stamping or Designation                    MLLW        MHW

     941 4816 CITY MONUMENT 1                    3.623    1.951
     941 4816 CITY MONUMENT 2                    3.264    1.592
     941 4816 CITY MONUMENT 3                    4.335    2.663
     YACHT 1947                                  3.349    1.677
     10 1947                                     3.684    2.012
     C 558 1956                                  5.156    3.484


                          U.S. DEPARTMENT OF COMMERCE
                National Oceanic and Atmospheric Administration
                            National Ocean Service
                                                                   Page  9 of  9

                                                                                
Station ID: 9414816                         PUBLICATION DATE:  03/09/2004
Name:       BERKELEY,S.F.BAY                                  
            CA
NOAA Chart: 18649                           Latitude:   37° 51.9' N (  37.86500)
USGS Quad:  OAKLAND WEST                    Longitude: 122° 18.4' W (-122.30700)


                             D E F I N I T I O N S


Mean Sea Level (MSL) is a tidal datum determined over a 19-year National Tidal
Datum Epoch.  It pertains to local mean sea level and should not be confused
with the fixed datums of North American Vertical Datum of 1988 (NAVD88).

NAVD88 is a fixed datum derived from a simultaneous, least squares, minimum
constraint adjustment of Canadian/Mexican/United States leveling observations.
Local mean sea level observed at Father Point/Rimouski, Canada was held fixed as
the single initial constraint.  NAVD88 replaces NGVD29 as the national
standard geodetic reference for heights.  Bench mark elevations relative to
NAVD88 are available from NGS through the World Wide Web at 
National Geodetic Survey.

NGVD29 is a fixed datum adopted as a national standard geodetic reference for
heights but is now considered superseded.  NGVD29 is sometimes referred to as
Sea Level Datum of 1929 or as Mean Sea Level on some early issues of Geological
Survey Topographic Quads.  NGVD29 was originally derived from a general
adjustment of the first-order leveling networks of the U.S. and Canada after
holding mean sea level observed at 26 long term tide stations as fixed.
Numerous local and wide-spread adjustments have been made since establishment in
1929.  Bench mark elevations relative to NGVD29 are available from the National
Geodetic Survey (NGS) data base via the World Wide Web at 
National Geodetic Survey.

NAVD88 and NGVD29 are fixed geodetic datums whose elevation relationships to
local MSL and other tidal datums may not be consistent from one location to
another.

The Vertical Mark Number (VM#) and PID# shown on the bench mark sheet are unique
identifiers for bench marks in the tidal and geodetic databases, respectively.
Each bench mark in either database has a single, unique VM# and/or PID# assigned.
Where both VM# and PID# are indicated, both tidal and geodetic elevations are
available for the bench mark listed. The NGS's Integrated Data Base (IDB PID)
provides geodetic datum based on traditionally leveled and bluebooked ties to
the National Spatial Reference System(NSRS) https://www.ngs.noaa.gov/datasheets/.
The NGS Online Positioning User Service (OPUS PID) provides geodetic datum based
on GPS position & tie it to the NSRS https://www.ngs.noaa.gov/OPUS/.

The NAVD88 elevation is shown on the Elevations of Tidal Datums Table Referred
to MLLW only when two or more of the bench marks listed have NAVD88 elevations.
The NAVD88 elevation relationship shown in the table is derived from an average
of several bench mark elevations relative to tide station datum.  As a result of
this averaging, NAVD88 bench mark elevations computed indirectly from the tidal
datums elevation table may differ slightly from NAVD88 elevations listed for
each bench mark in the NGS database.

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Products available at 9414816 BERKELEY,S.F.BAY,

Revised: 10/15/2013
NOAA / National Ocean Service
Web site owner: Center for Operational Oceanographic Products and Services