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Bench Mark Sheet for 9415266, PIERCE HARBOR,GOODYEAR SLOUGH 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Superseded Epoch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Small blue map location marker Unpublished bench mark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  6

                                                                                
Station ID: 9415266                         PUBLICATION DATE:  07/14/2003
Name:       PIERCE HARBOR,GOODYEAR SLOUGH                     
            CA
NOAA Chart: 18656                           Latitude:   38°  7.6' N (  38.12670)
USGS Quad:  FAIRFIELD SOUTH                 Longitude: 122°  6.0' W (-122.10000)


To reach the tidal bench marks from Benicia, proceed north along Interstate 680,
then exit at Parish Road heading towards Pierce, then turn and proceed north
along Goodyear Road for 1.3 km (0.8 mi) to Pierce Lane, then turn right and
proceed east on Pierce Lane for 0.5 km (0.3 mi) to the Southern Pacific Railroad
tracks.  The bench marks are along Pierce Lane and the railroad tracks.  The
tide gage and staff were located on Pierce Harbor on the southernmost dock.


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


                 PRIMARY BENCH MARK STAMPING:  5266 E 1977
                         DESIGNATION:          941 5266 E

MONUMENTATION:           Tidal Station disk                    VM#:         6707
AGENCY:                  National Ocean Survey (NOS)           IDB PID#:        
SETTING CLASSIFICATION:  Unspecified deep rod                  OPUS PID:        
LATITUDE:   38°  7.6' N (  38.12670)          LONGITUDE: 122°  6.0' W (-122.10000)


The primary bench mark is a disk located on the east side of the Southern
Pacific railroad tracks, 219 m (720 ft) south of the centerline of the paved
access road to Pierce Harbor, 152 m (500 ft) north of bench mark 2 1932, 17 m
(55 ft) east of the easternmost rail of railroad tracks, and 8 m (25 ft) east of
a fence.  The bench mark is crimped to the top of a rod driven 12.5 m (41 ft) to
substantial resistance.

                          U.S. DEPARTMENT OF COMMERCE
                National Oceanic and Atmospheric Administration
                            National Ocean Service
                                                                   Page  2 of  6

                                                                                
Station ID: 9415266                         PUBLICATION DATE:  07/14/2003
Name:       PIERCE HARBOR,GOODYEAR SLOUGH                     
            CA
NOAA Chart: 18656                           Latitude:   38°  7.6' N (  38.12670)
USGS Quad:  FAIRFIELD SOUTH                 Longitude: 122°  6.0' W (-122.10000)


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


                         BENCH MARK STAMPING:  BM 2 1932
                         DESIGNATION:          TIDAL 2

MONUMENTATION:           Tidal Station disk                    VM#:         6704
AGENCY:                  US Coast and Geodetic Survey
                         (USC&GS)                              IDB PID#:  JT0161
SETTING CLASSIFICATION:  Concrete footing                      OPUS PID:        
LATITUDE:   38°  7.3' N (  38.12170)          LONGITUDE: 122°  6.1' W (-122.10200)


The bench mark is a disk set in the northern part of the concrete footing of
signal tower No. 398, four telephone line poles south of mile post 40, just east
of the railroad tracks, 0.5 km (0.3 mi) SW of the road across the railroad
tracks at the Pierce Station, 9 m (31 ft) SE of a telephone line pole, 6 m (21
ft) north of the center of the motor car platform, 2.90 m (9.5 ft) east of the
east rail of the railroad tracks, and 0.15 m (0.5 ft) below the top of the rail.



                         BENCH MARK STAMPING:  5266 C 1977
                         DESIGNATION:          941 5266 C

MONUMENTATION:           Tidal Station disk                    VM#:         6705
AGENCY:                  National Ocean Survey (NOS)           IDB PID#:        
SETTING CLASSIFICATION:  Concrete foundation                   OPUS PID:        
LATITUDE:   38°  7.6' N (  38.12670)          LONGITUDE: 122°  6.0' W (-122.10000)


The bench mark is a disk set in a concrete foundation for a telephone booth and
supports a 9.14 m (30.0 ft) high antenna near the intersection of the railroad
tracks and Pierce Lane, 32 m (104 ft) SW of bench mark 5266 D 1977, 0.76 m (2.5
ft) north of the Pierce Harbor Cafe, and flush with the foundation.

                          U.S. DEPARTMENT OF COMMERCE
                National Oceanic and Atmospheric Administration
                            National Ocean Service
                                                                   Page  3 of  6

                                                                                
Station ID: 9415266                         PUBLICATION DATE:  07/14/2003
Name:       PIERCE HARBOR,GOODYEAR SLOUGH                     
            CA
NOAA Chart: 18656                           Latitude:   38°  7.6' N (  38.12670)
USGS Quad:  FAIRFIELD SOUTH                 Longitude: 122°  6.0' W (-122.10000)


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


                         BENCH MARK STAMPING:  5266 D 1977
                         DESIGNATION:          941 5266 D

MONUMENTATION:           Tidal Station disk                    VM#:         6706
AGENCY:                  National Ocean Survey (NOS)           IDB PID#:        
SETTING CLASSIFICATION:  Launching ramp                        OPUS PID:        
LATITUDE:   38°  7.6' N (  38.12670)          LONGITUDE: 122°  6.0' W (-122.10000)


The bench mark is a disk set in the north side of the launching ramp at Pierce
Harbor, 5 m (15 ft) east of the NW corner of the boat ramp, 0.3 m (1 ft) south
of the edge of the boat ramp, and flush with the north side of the boat ramp.



                         BENCH MARK STAMPING:  5266 F 1977
                         DESIGNATION:          941 5266 F

MONUMENTATION:           Tidal Station disk                    VM#:         6708
AGENCY:                  National Ocean Survey (NOS)           IDB PID#:        
SETTING CLASSIFICATION:  Unspecified deep rod                  OPUS PID:        
LATITUDE:   38°  7.6' N (  38.12670)          LONGITUDE: 122°  6.0' W (-122.10000)


The bench mark is a disk located on the NW corner of Pierce Lane and a dirt road
leading to the West Family Duck Club, west of the railroad tracks, 81 m (266 ft)
east of bench mark 5166 G 1977, 21 m (68 ft) west of the westernmost of four
rails, and 4 m (12 ft) north of the centerline of the paved road.  The bench
mark is crimped to the top of a rod driven 13.4 m (44 ft) to substantial
resistance, and encased in a PVC pipe.

                          U.S. DEPARTMENT OF COMMERCE
                National Oceanic and Atmospheric Administration
                            National Ocean Service
                                                                   Page  4 of  6

                                                                                
Station ID: 9415266                         PUBLICATION DATE:  07/14/2003
Name:       PIERCE HARBOR,GOODYEAR SLOUGH                     
            CA
NOAA Chart: 18656                           Latitude:   38°  7.6' N (  38.12670)
USGS Quad:  FAIRFIELD SOUTH                 Longitude: 122°  6.0' W (-122.10000)


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


                         BENCH MARK STAMPING:  5266 G 1977
                         DESIGNATION:          941 5266 G

MONUMENTATION:           Tidal Station disk                    VM#:         6709
AGENCY:                  National Ocean Survey (NOS)           IDB PID#:        
SETTING CLASSIFICATION:  Unspecified deep rod                  OPUS PID:        
LATITUDE:   38°  7.6' N (  38.12670)          LONGITUDE: 122°  6.0' W (-122.10000)


The bench mark is a disk set on the north side of Pierce Lane, 0.32 km (0.2 mi)
east of Goodyear Road,  99 m (324 ft) west of the westmost of four rails, and 4
m (12 ft) north of the centerline.  The bench mark is crimped to the top of a
rod and driven 10.7 m (35 ft) to substantial resistance.

                          U.S. DEPARTMENT OF COMMERCE
                National Oceanic and Atmospheric Administration
                            National Ocean Service
                                                                   Page  5 of  6

                                                                                
Station ID: 9415266                         PUBLICATION DATE:  07/14/2003
Name:       PIERCE HARBOR,GOODYEAR SLOUGH                     
            CA
NOAA Chart: 18656                           Latitude:   38°  7.6' N (  38.12670)
USGS Quad:  FAIRFIELD SOUTH                 Longitude: 122°  6.0' W (-122.10000)


                            T I D A L   D A T U M S 


Tidal datums at PIERCE HARBOR,GOODYEAR SLOUGH based on:

     LENGTH OF SERIES:      1 YEAR
     TIME PERIOD:           June 1977 - May 1978
     TIDAL EPOCH:           1983-2001
     CONTROL TIDE STATION:  9415144 PORT CHICAGO, SUISUN BAY


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

     HIGHEST OBSERVED WATER LEVEL (02/05/1978)         =  1.889
     MEAN HIGHER HIGH WATER                     MHHW   =  1.498
     MEAN HIGH WATER                            MHW    =  1.351
     MEAN SEA LEVEL                             MSL    =  0.785
     MEAN TIDE LEVEL                            MTL    =  0.784
     MEAN LOW WATER                             MLW    =  0.217
     MEAN LOWER LOW WATER                       MLLW   =  0.000
     LOWEST  OBSERVED WATER LEVEL (05/27/1978)         = -0.349

North American Vertical Datum (NAVD88)

Bench Mark Elevation Information                In METERS above:

     Stamping or Designation                    MLLW        MHW

     5266 E 1977                                 1.761    0.410
     BM 2 1932                                   2.389    1.038
     5266 C 1977                                 1.490    0.139
     5266 D 1977                                 1.859    0.508
     5266 F 1977                                 1.192   -0.159
     5266 G 1977                                 1.321   -0.030


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

                                                                                
Station ID: 9415266                         PUBLICATION DATE:  07/14/2003
Name:       PIERCE HARBOR,GOODYEAR SLOUGH                     
            CA
NOAA Chart: 18656                           Latitude:   38°  7.6' N (  38.12670)
USGS Quad:  FAIRFIELD SOUTH                 Longitude: 122°  6.0' W (-122.10000)


                             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 9415266 PIERCE HARBOR,GOODYEAR SLOUGH, CA

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