Bench Mark Sheet for 8639348, Money Point VA

Superseded Epoch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Small blue map location marker Unpublished bench mark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: 8639348                         PUBLICATION DATE:  01/26/2012
Name:       MONEY POINT, S. BR. ELIZABETH RIVER               
            VA
NOAA Chart: 12253                           Latitude:   36° 46.7' N (  36.77830)
USGS Quad:  NORFOLK SOUTH                   Longitude:  76° 18.1' W ( -76.30170)


To reach the tidal bench marks from the Post Office in Chesapeake, Virginia,
proceed north on Battlefield Boulevard for 0.8 km (0.5 mi), then continue west
on Interstate 64 toward Suffolk to Exit 291A for I-664 toward Norfolk, then take
I-664 to Freeman Avenue (Exit 3), turn left at the light and continue south on
Freeman Avenue for 1.1 km (0.7 mi) to Buell Street, then left on Buell Street
for 0.5 km (0.3 mi) to the Elizabeth River Terminal on the right.  The bench
marks are on the terminal property and the tide gage is located on the end of
pier No. 2.


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


                 PRIMARY BENCH MARK STAMPING:  9348 E 1997
                         DESIGNATION:          863 9348 E

MONUMENTATION:           Flange-encased Rod                    VM#:        13895
AGENCY:                  National Ocean Service (NOS)          IDB PID#:        
SETTING CLASSIFICATION:  Stainless steel rod in sleeve         OPUS PID:        
LATITUDE:   36° 46.8' N (  36.78000)          LONGITUDE:  76° 17.6' W ( -76.29330)


The primary bench mark is located near an oil storage tank in a grassy area,
60.50 m (198.5 ft) NNE of Warehouse No. 1, 24.29 m (79.7 ft) ESE of the SE
corner of the office/break room, 16.09 m (52.8 ft) south of the SE corner of the
electrical shop, 2.01 m (6.6 ft) NE of a witness post, and 1.80 m (5.9 ft) south
of a telephone pole. The datum point is the top of a stainless steel rod driven
7.6 m (25 ft) to refusal, in a grease-filled sleeve extending to a depth of 0.91
m (3 ft), and encased inside a 5-inch logo cap. Note-The sleeve depth does not
meet the specifications of a Class A rod mark. 

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

                                                                                
Station ID: 8639348                         PUBLICATION DATE:  01/26/2012
Name:       MONEY POINT, S. BR. ELIZABETH RIVER               
            VA
NOAA Chart: 12253                           Latitude:   36° 46.7' N (  36.77830)
USGS Quad:  NORFOLK SOUTH                   Longitude:  76° 18.1' W ( -76.30170)


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


                         BENCH MARK STAMPING:  9348 A 1997
                         DESIGNATION:          863 9348 A

MONUMENTATION:           Tidal Station disk                    VM#:        13896
AGENCY:                  National Ocean Service (NOS)          IDB PID#:        
SETTING CLASSIFICATION:  Warehouse foundation                  OPUS PID#: BBDC15
LATITUDE:   36° 46.7' N (  36.77830)          LONGITUDE:  76° 18.0' W ( -76.30000)


The bench mark is a disk set in the concrete foundation on the west side of
Warehouse No. 1, 39.01 m (128.0 ft) NE of the SE corner of Warehouse No. 2,
15.61 m (51.2 ft) SSE of the SE corner of the main switch building, 15.61 m
(51.2 ft) NNW of the inside corner of Warehouse No. 1, 1.10 m (3.6 ft) NE of the
NW corner of Warehouse No. 1, and 0.30 m (1.0 ft) above ground.



                         BENCH MARK STAMPING:  9348 B 1997
                         DESIGNATION:          863 9348 B

MONUMENTATION:           Tidal Station disk                    VM#:        13897
AGENCY:                  National Ocean Service (NOS)          IDB PID#:        
SETTING CLASSIFICATION:  Concrete foundation                   OPUS PID:        
LATITUDE:   36° 46.8' N (  36.78000)          LONGITUDE:  76° 18.1' W ( -76.30170)


The bench mark is a disk set in the concrete foundation of the railroad train
boxcar scale SE of Warehouse No. 6, 43.19 m (141.7 ft) NE of the NE corner of a
warehouse, 41.51 m (136.2 ft) NNE of the NW corner of Warehouse No. 2, 13.41 m
(44.0 ft) NE of the boxcar scale, 13.01 m (42.7 ft) SE of the SE corner of
Warehouse No. 6, and 0.79 m (2.6 ft) SW of the SW corner of the scalehouse
building.

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

                                                                                
Station ID: 8639348                         PUBLICATION DATE:  01/26/2012
Name:       MONEY POINT, S. BR. ELIZABETH RIVER               
            VA
NOAA Chart: 12253                           Latitude:   36° 46.7' N (  36.77830)
USGS Quad:  NORFOLK SOUTH                   Longitude:  76° 18.1' W ( -76.30170)


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


                         BENCH MARK STAMPING:  9348 D 1997
                         DESIGNATION:          863 9348 D TIDAL

MONUMENTATION:           Flange-encased Rod                    VM#:        13899
AGENCY:                  National Ocean Service (NOS)          IDB PID#:        
SETTING CLASSIFICATION:  Stainless steel rod in sleeve         OPUS PID#: AJ4592
LATITUDE:   36° 46.9' N (  36.78170)          LONGITUDE:  76° 17.9' W ( -76.29830)


The bench mark is located near the Buell Street entrance to the Elizabeth River
Terminal, 30.60 m (100.4 ft) NE of the NE corner of the main office building,
28.80 m (94.5 ft) south of Pratt Street, 12.71 m (41.7 ft) WNW of Buell Street,
and 1.19 m (3.9 ft) SE of a witness post.  The datum point is set 0.09 m (0.3
ft) below ground, being the top of a stainless steel rod driven 7.6 m (25 ft) to
refusal, in a grease-filled sleeve extending to a depth of 0.91 meter (3 ft),
and encased in a 5-inch logo cap. Note-The sleeve depth does not meet the
specifications of a Class A rod mark. 



                         BENCH MARK STAMPING:  9348 F 2008
                         DESIGNATION:          863 9348 F

MONUMENTATION:           Bench Mark disk                       VM#:        18656
AGENCY:                  National Ocean Survey/Service(NOS)    IDB PID#:        
SETTING CLASSIFICATION:  Foundation of stairs                  OPUS PID:        
LATITUDE:   36° 46.7' N (  36.77822)          LONGITUDE:  76° 18.1' W ( -76.30128)


The bench mark is set flush in a concrete foundation for the stairs leading to a
platform of the conveyor belt south of a warehouse number 2, 29.33 m (96.2 ft)
south of warehouse number 2, 2.90 m (9.5 ft) east of the west side of a 6.58 m
(21.59 ft) X 3.62 m (11.88 ft) concrete foundation for stairs, 0.55 m (1.8 ft)
south of the staris leading to a platform on the conveyor belt.

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

                                                                                
Station ID: 8639348                         PUBLICATION DATE:  01/26/2012
Name:       MONEY POINT, S. BR. ELIZABETH RIVER               
            VA
NOAA Chart: 12253                           Latitude:   36° 46.7' N (  36.77830)
USGS Quad:  NORFOLK SOUTH                   Longitude:  76° 18.1' W ( -76.30170)


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


                         BENCH MARK STAMPING:  9348 G 2011
                         DESIGNATION:          863 9348 G

MONUMENTATION:           Survey disk                           VM#:        20068
AGENCY:                  National Ocean Service                IDB PID#:        
SETTING CLASSIFICATION:  Concrete foundation                   OPUS PID:        
LATITUDE:   36° 46.8' N (  36.78053)          LONGITUDE:  76° 18.0' W ( -76.30050)


The bench mark is located near the Buell Street on the property of the Elizabeth
River Terminal, the bench mark is a brass disk set flush with the ground in the
SE corner of concrete foundation of the main truck scale, 21.1 m (69.2 ft) NNE
of the NE corner of ERT shop, 3.0 m (9.8 ft) SE from the SW corner of the main
truck scale, 0.20 m (0.7 ft) NW of the SE corner of a 3 m x 3.5 m concrete slab.



                         BENCH MARK STAMPING:  9348 H 2011
                         DESIGNATION:          863 9348 H

MONUMENTATION:           Survey disk                           VM#:        20069
AGENCY:                  National Ocean Service                IDB PID#:        
SETTING CLASSIFICATION:  Concrete foundation                   OPUS PID:        
LATITUDE:   36° 46.9' N (  36.78114)          LONGITUDE:  76° 18.0' W ( -76.29956)


The bench mark is located near the Buell Street on the property of the Elizabeth
River Terminal, the bench mark is a brass disk set flush in the top of a
concrete ledge of the foundation of a large oil tank, the bench mark is located
20.7 m (67.9 ft) NNE from NE corner of building ERT 9, 4.8 m (15.7 ft) east from
wooden pile with two electrical boxes attached to it, 0.15 m (0.5 ft) west from
wall of oil tank, 0.35 m (1.1 ft) above ground.

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

                                                                                
Station ID: 8639348                         PUBLICATION DATE:  01/26/2012
Name:       MONEY POINT, S. BR. ELIZABETH RIVER               
            VA
NOAA Chart: 12253                           Latitude:   36° 46.7' N (  36.77830)
USGS Quad:  NORFOLK SOUTH                   Longitude:  76° 18.1' W ( -76.30170)


                            T I D A L   D A T U M S 


Tidal datums at MONEY POINT, S. BR. ELIZABETH RIVER based on:

     LENGTH OF SERIES:      13 YEARS
     TIME PERIOD:           January 1998 - December 2010
     TIDAL EPOCH:           1983-2001
     CONTROL TIDE STATION:  8638610 SEWELLS POINT, HAMPTON ROADS


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

     HIGHEST OBSERVED WATER LEVEL (11/13/2009)         =  2.613
     MEAN HIGHER HIGH WATER                     MHHW   =  0.977
     MEAN HIGH WATER                            MHW    =  0.913
     MEAN SEA LEVEL                             MSL    =  0.478
     MEAN TIDE LEVEL                            MTL    =  0.477
     MEAN LOW WATER                             MLW    =  0.041
     MEAN LOWER LOW WATER                       MLLW   =  0.000
     LOWEST  OBSERVED WATER LEVEL (01/02/1998)         = -0.810

North American Vertical Datum (NAVD88)

Bench Mark Elevation Information                In METERS above:

     Stamping or Designation                    MLLW        MHW

     9348 E 1997                                 3.413    2.500
     9348 A 1997                                 2.929    2.016
     9348 B 1997                                 2.975    2.062
     9348 D 1997                                 2.038    1.125
     9348 F 2008                                 3.269    2.356
     9348 G 2011                                 2.735    1.822
     9348 H 2011                                 3.669    2.756


Foot Notes:

Bench marks 9348 G 2011 and 9348 H 2011 are based on one differential leveling
connection and do not meet the quality control standards of the NOS.  Therefore,
caution should be used when deriving elevations for these marks.

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

                                                                                
Station ID: 8639348                         PUBLICATION DATE:  01/26/2012
Name:       MONEY POINT, S. BR. ELIZABETH RIVER               
            VA
NOAA Chart: 12253                           Latitude:   36° 46.7' N (  36.77830)
USGS Quad:  NORFOLK SOUTH                   Longitude:  76° 18.1' W ( -76.30170)


                             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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