Bench Mark Sheet for 8538274, AUBURN, OLDMANS CREEK NJ

Superseded Epoch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Small blue map location marker Unpublished bench mark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: 8538274                         PUBLICATION DATE:  05/12/2004
Name:       AUBURN, OLDMANS CREEK                             
            NJ
NOAA Chart: 12312                           Latitude:   39° 42.9' N (  39.71500)
USGS Quad:  WOODSTOWN                       Longitude:  75° 21.6' W ( -75.36000)


To reach the tidal bench marks from the village of Auburn, proceed 0.6 km (0.4
mi) NE along County Route 551 Main Street, which becomes Auburn Road NE of the
bridge) to the NE end of the highway bridge over Oldmans Creek.  The bench marks
are on the bridge abutments, and SW along Route 551.  The tide gage and staff
were on a small pier a short distance south of the bridge on the east bank of
the creek.


                         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  6

                                                                                
Station ID: 8538274                         PUBLICATION DATE:  05/12/2004
Name:       AUBURN, OLDMANS CREEK                             
            NJ
NOAA Chart: 12312                           Latitude:   39° 42.9' N (  39.71500)
USGS Quad:  WOODSTOWN                       Longitude:  75° 21.6' W ( -75.36000)


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


                 PRIMARY BENCH MARK STAMPING:  OLDMANS 1933
                         DESIGNATION:          OLDMAN

MONUMENTATION:           Triangulation Station disk            VM#:         2816
AGENCY:                  US Coast & Geodetic Survey
                         (USC&GS)                                 IDB PID#:  JU3235
SETTING CLASSIFICATION:  Concrete bridge railing               OPUS PID:        
LATITUDE:   39° 43.0' N (  39.71670)          LONGITUDE:  75° 21.6' W ( -75.36000)


The primary bench mark is a disk set flush in the top of a 0.91 m (3 ft) high
concrete bridge railing, 8.17 m (26.8 ft) NW of the centerline of the bridge,
2.47 m (8.1 ft) SW of the southwesterly extremity of the steel guard rail, 1.46
m (4.8 ft) NW of the concrete curb of the bridge, and 0.61 m (2.0 ft) SW of the
NE face of the concrete bridge railing.



                         BENCH MARK STAMPING:  8274 B 1977
                         DESIGNATION:          853 8274 B TIDAL

MONUMENTATION:           Tidal Station disk                    VM#:         2817
AGENCY:                  National Ocean Survey (NOS)           IDB PID#:        
SETTING CLASSIFICATION:  Bridge abutment                       OPUS PID:        
LATITUDE:   39° 42.9' N (  39.71500)          LONGITUDE:  75° 21.6' W ( -75.36000)


The bench mark is a disk set flush in the SW abutment of the County Route 551
bridge over Oldmans Creek, 40 m (130 ft) SW of bench mark OLDMANS 1933, 7 m (23
ft) NW of the centerline of the bridge, 3.75 m (12.3 ft) NE of the NE corner of
the catch basin, 0.91 m (3.0 ft) NE of a metal traffic sign reading "SPEED ZONE
AHEAD,"  0.61 m (2.0 ft) NW of the NW concrete curb of the bridge, and 0.52 m
(1.7 ft) SE of the inside face of the 0.91 m (3 ft) high concrete bridge
railing.

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

                                                                                
Station ID: 8538274                         PUBLICATION DATE:  05/12/2004
Name:       AUBURN, OLDMANS CREEK                             
            NJ
NOAA Chart: 12312                           Latitude:   39° 42.9' N (  39.71500)
USGS Quad:  WOODSTOWN                       Longitude:  75° 21.6' W ( -75.36000)


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


                         BENCH MARK STAMPING:  8274 C 1977
                         DESIGNATION:          853 8274 C TIDAL

MONUMENTATION:           Tidal Station disk                    VM#:         2818
AGENCY:                  National Ocean Survey (NOS)           IDB PID#:        
SETTING CLASSIFICATION:  Galvanized steel rod                  OPUS PID#: BBDC36
LATITUDE:   39° 42.9' N (  39.71500)          LONGITUDE:  75° 21.6' W ( -75.36000)


The bench mark is a disk located 37 m (120 ft) SW of bench mark 8274 B 1977,
13.93 m (45.7 ft) SW of wood utility pole #F29790, 8.02 m (26.3 ft) SE of the
centerline of County Route 551, 1.62 m (5.3 ft) SE of the SE concrete curb, and
0.67 m (2.2 ft) SE of the steel guard rail.  The bench mark is set 6 cm (0.2 ft)
below ground level, crimped to the top of a galvanized steel rod driven 15.2 m
(50 ft) to refusal, and encased in PVC and concrete kickblock.



                         BENCH MARK STAMPING:  8274 D 1977
                         DESIGNATION:          853 8274 D TIDAL

MONUMENTATION:           Tidal Station disk                    VM#:         2819
AGENCY:                  National Ocean Survey (NOS)           IDB PID#:        
SETTING CLASSIFICATION:  Galvanized steel rod                  OPUS PID:        
LATITUDE:   39° 42.9' N (  39.71500)          LONGITUDE:  75° 21.6' W ( -75.36000)


The bench mark is a disk located 43 m (140 ft) west of bench mark 8274 C 1977,
27.61 m (90.6 ft) NE of a traffic sign reading "SPEED LIMIT 25 MPH," 18.65 m
(61.2 ft) north of wood utility pole #F29789, 0.76 m (2.5 ft) NW of the NW
concrete curb of County Route 551, and 0.34 m (1.1 ft) SE of a steel guard rail.
 The bench mark is set 6 cm (0.2 ft) below ground level, crimped to the top of a
galvanized steel rod driven 15.2 m (50 ft) to refusal, and encased in PVC and
concrete kickblock.

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

                                                                                
Station ID: 8538274                         PUBLICATION DATE:  05/12/2004
Name:       AUBURN, OLDMANS CREEK                             
            NJ
NOAA Chart: 12312                           Latitude:   39° 42.9' N (  39.71500)
USGS Quad:  WOODSTOWN                       Longitude:  75° 21.6' W ( -75.36000)


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


                         BENCH MARK STAMPING:  8274 E 1977
                         DESIGNATION:          853 8274 E TIDAL

MONUMENTATION:           Tidal Station disk                    VM#:         2820
AGENCY:                  National Ocean Survey (NOS)           IDB PID#:        
SETTING CLASSIFICATION:  Galvanized steel rod                  OPUS PID:        
LATITUDE:   39° 42.9' N (  39.71500)          LONGITUDE:  75° 21.6' W ( -75.36000)


The bench mark is a disk located 61 m (200 ft) SW of bench mark 8274 D 1977,
26.09 m (85.6 ft) NE of a sand and gravel driveway, 4.57 m (15.0 ft) east of the
easternmost corner of a catch basin on the SE curbline of County Route 551, 3.35
m (11.0 ft) SE of the concrete curb, and 1.31 m (4.3 ft) SE of the steel guard
rail.  The bench mark is set 6 cm (0.2 ft) below ground level, crimped to the
top of a galvanized steel rod driven 15.2 m (50 ft) to refusal, and encased in
PVC and concrete kickblock.

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

                                                                                
Station ID: 8538274                         PUBLICATION DATE:  05/12/2004
Name:       AUBURN, OLDMANS CREEK                             
            NJ
NOAA Chart: 12312                           Latitude:   39° 42.9' N (  39.71500)
USGS Quad:  WOODSTOWN                       Longitude:  75° 21.6' W ( -75.36000)


                            T I D A L   D A T U M S 


Tidal datums at AUBURN, OLDMANS CREEK based on:

     LENGTH OF SERIES:      1 MONTH
     TIME PERIOD:           October 1977 - October 1977
     TIDAL EPOCH:           1983-2001
     CONTROL TIDE STATION:  8545530 PHILADELPHIA (PIER 11 NORTH), DEL. RIVER


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

     MEAN HIGHER HIGH WATER                     MHHW   =  0.978
     MEAN HIGH WATER                            MHW    =  0.919
     MEAN SEA LEVEL                             MSL    =  0.603
     MEAN TIDE LEVEL                            MTL    =  0.502
     MEAN LOW WATER                             MLW    =  0.085
     MEAN LOWER LOW WATER                       MLLW   =  0.000

North American Vertical Datum (NAVD88)

Bench Mark Elevation Information                In METERS above:

     Stamping or Designation                    MLLW        MHW

     OLDMANS 1933                                6.350    5.431
     8274 B 1977                                 5.849    4.930
     8274 C 1977                                 5.871    4.952
     8274 D 1977                                 6.505    5.585
     8274 E 1977                                 8.328    7.409


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

                                                                                
Station ID: 8538274                         PUBLICATION DATE:  05/12/2004
Name:       AUBURN, OLDMANS CREEK                             
            NJ
NOAA Chart: 12312                           Latitude:   39° 42.9' N (  39.71500)
USGS Quad:  WOODSTOWN                       Longitude:  75° 21.6' W ( -75.36000)


                             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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