NOAA Web Site Link Tides and Currents Home Page Transparent placeholder image

Bench Mark Sheet for 9410396, OCEANSIDE HARBOR CA

Superseded Epoch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Small blue map location marker Unpublished bench mark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  5

                                                                                
Station ID: 9410396                         PUBLICATION DATE:  11/13/2003
Name:       OCEANSIDE HARBOR                                  
            CA
NOAA Chart: 18740                           Latitude:   33° 12.6' N (  33.21000)
USGS Quad:  OCEANSIDE                       Longitude: 117° 23.7' W (-117.39500)


To reach the tidal bench marks proceed north along Interstate 5 from Oceanside
to Harbor Drive exit, then west toward the Oceanside Harbor Headquarters pier at
1540 Harbor Drive.  The tide gage and staff were located on the Oceanside Marina
Center dock.


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


                 PRIMARY BENCH MARK STAMPING:  0396 A 1979
                         DESIGNATION:          941 0396 A TIDAL

MONUMENTATION:           Tidal Station disk                    VM#:         7990
AGENCY:                  National Ocean Survey (NOS)           IDB PID#:        
SETTING CLASSIFICATION:  Flagpole base                         OPUS PID:        
LATITUDE:   33° 12.6' N (  33.21000)          LONGITUDE: 117° 23.6' W (-117.39300)


The primary bench mark is a disk set in SW corner of flagpole base, 5.33 m (17.5
ft) NW of SW corner of ERWIN SKLAR 1910-1974 Monument plaque and 0.55 m (1.8 ft)
SW of flagploe at Oceanside Harbor Headquarters.



                         BENCH MARK STAMPING:  0396 B 1979
                         DESIGNATION:          941 0396 B TIDAL

MONUMENTATION:           Tidal Station disk                    VM#:         7991
AGENCY:                  National Ocean Survey (NOS)           IDB PID#:        
SETTING CLASSIFICATION:  Concrete foundation                   OPUS PID#: BBCR82
LATITUDE:   33° 12.6' N (  33.21000)          LONGITUDE: 117° 23.6' W (-117.39300)


The bench mark is a disk set in NE corner of boat ramp concrete foundation
between berths 80 and 79 at the harbor, across the street from lights OCEANSIDE
sign of large individual block letters, 10 m (34 ft) SW of yellow fire hydrant
and 2.80 m (9.2 ft) west of west curb of Harbor Drive.

                          U.S. DEPARTMENT OF COMMERCE
                National Oceanic and Atmospheric Administration
                            National Ocean Service
                                                                   Page  2 of  5

                                                                                
Station ID: 9410396                         PUBLICATION DATE:  11/13/2003
Name:       OCEANSIDE HARBOR                                  
            CA
NOAA Chart: 18740                           Latitude:   33° 12.6' N (  33.21000)
USGS Quad:  OCEANSIDE                       Longitude: 117° 23.7' W (-117.39500)


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


                         BENCH MARK STAMPING:  0396 C 1979
                         DESIGNATION:          941 0396 C TIDAL

MONUMENTATION:           Tidal Station disk                    VM#:         7992
AGENCY:                  National Ocean Survey (NOS)           IDB PID#:        
SETTING CLASSIFICATION:  Concrete wing wall                    OPUS PID:        
LATITUDE:   33° 12.6' N (  33.21000)          LONGITUDE: 117° 23.6' W (-117.39300)


The bench mark is a disk set in top of and in center of south wingwall of boat
ramp one, north of boat ramp, between berths Y12 and 13, 7.99 m (26.2 ft) west
of west curb of Harbor Drive, 6.04 m (19.8 ft) SW of SW corner of concrete
structure enclosing a gas main, and 5.27 m (17.3 ft) feet west of light post.



                         BENCH MARK STAMPING:  0396 E 1979
                         DESIGNATION:          941 0396 E TIDAL

MONUMENTATION:           Tidal Station disk                    VM#:         7993
AGENCY:                  National Ocean Survey (NOS)           IDB PID#:        
SETTING CLASSIFICATION:  Unspecified deep rod                  OPUS PID:        
LATITUDE:   33° 12.6' N (  33.21000)          LONGITUDE: 117° 23.6' W (-117.39300)


The bench mark is a disk located at the east end of tunnel leading from Cape Cod
Village to east parking lot, 14.78 m (48.5 ft) south of fire hydrant No. 1136,
5.33 m (17.5 ft) SE of SE wingwall of tunnel (under railroad tracks), 0.46 m
(1.5 ft) SW of white wood witness post, and level with grade.  The bench mark is
set on a rod, driven 15 m (48 ft) to refusal, and enclosed in PVC pipe extending
0.21 m (0.7 ft) above grade,

                          U.S. DEPARTMENT OF COMMERCE
                National Oceanic and Atmospheric Administration
                            National Ocean Service
                                                                   Page  3 of  5

                                                                                
Station ID: 9410396                         PUBLICATION DATE:  11/13/2003
Name:       OCEANSIDE HARBOR                                  
            CA
NOAA Chart: 18740                           Latitude:   33° 12.6' N (  33.21000)
USGS Quad:  OCEANSIDE                       Longitude: 117° 23.7' W (-117.39500)


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


                         BENCH MARK STAMPING:  SLR 101 1974
                         DESIGNATION:          941 0396 SLR 101 1974

MONUMENTATION:           Bench Mark disk                       VM#:         7994
AGENCY:                  Army COE                              IDB PID#:        
SETTING CLASSIFICATION:  Concrete wing wall                    OPUS PID:        
LATITUDE:   33° 12.6' N (  33.21000)          LONGITUDE: 117° 23.6' W (-117.39300)


The bench mark is a disk set in top of NE wingwall of Atcheson, Topeka, and
Santa Fe railroad bridge over San Luis Rey River.

                          U.S. DEPARTMENT OF COMMERCE
                National Oceanic and Atmospheric Administration
                            National Ocean Service
                                                                   Page  4 of  5

                                                                                
Station ID: 9410396                         PUBLICATION DATE:  11/13/2003
Name:       OCEANSIDE HARBOR                                  
            CA
NOAA Chart: 18740                           Latitude:   33° 12.6' N (  33.21000)
USGS Quad:  OCEANSIDE                       Longitude: 117° 23.7' W (-117.39500)


                            T I D A L   D A T U M S 


Tidal datums at OCEANSIDE HARBOR based on:

     LENGTH OF SERIES:      8 MONTHS
     TIME PERIOD:           October 1979 - May 1980
     TIDAL EPOCH:           1983-2001
     CONTROL TIDE STATION:  9410230 LA JOLLA, PACIFIC OCEAN


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

     MEAN HIGHER HIGH WATER                     MHHW   =  1.630
     MEAN HIGH WATER                            MHW    =  1.405
     MEAN TIDE LEVEL                            MTL    =  0.839
     MEAN SEA LEVEL                             MSL    =  0.832
     MEAN LOW WATER                             MLW    =  0.274
     MEAN LOWER LOW WATER                       MLLW   =  0.000

North American Vertical Datum (NAVD88)

Bench Mark Elevation Information                In METERS above:

     Stamping or Designation                    MLLW        MHW

     0396 A 1979                                 4.960    3.555
     0396 B 1979                                 2.973    1.568
     0396 C 1979                                 2.862    1.457
     0396 E 1979                                 3.874    2.469
     SLR 101 1974                                8.008    6.603


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

                                                                                
Station ID: 9410396                         PUBLICATION DATE:  11/13/2003
Name:       OCEANSIDE HARBOR                                  
            CA
NOAA Chart: 18740                           Latitude:   33° 12.6' N (  33.21000)
USGS Quad:  OCEANSIDE                       Longitude: 117° 23.7' W (-117.39500)


                             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.

Return to Top
Products available at 9410396 OCEANSIDE HARBOR, CA

Revised: 08/08/2018
NOAA / National Ocean Service
Web site owner: Center for Operational Oceanographic Products and Services