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Bench Mark Sheet for 8636653, Lester Manor 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Superseded Epoch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Small blue map location marker Unpublished bench mark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  8

                                                                                
Station ID: 8636653                         PUBLICATION DATE:  09/12/2008
Name:       LESTER MANOR                                      
            VA
NOAA Chart: 12243                           Latitude:   37° 35.0' N (  37.58330)
USGS Quad:  NEW KENT (1978)                 Longitude:  76° 59.4' W ( -76.99000)


To reach the station gage, depart from King William Courthouse Sr 619 (Horse
Landing Road) south 0.16 km (0.1 mi), turn left east onto SR 30 (King William
Road) 1.1 km (0.7 mi), turn right south onto SR 633 (Powhatan Trail) 11.3 km
(7.1 mi), turn right west onto SR 673 (Pocahontas Trail) 1.9 km (1.2 mi), turn
left east onto SR 673 (Pamunkey River Road) 0.80 km (0.5 mi) to intersection of
SR 673 (Pamunkey River Road) and SR 1401 (Lay Landing Road).  Turn left onto SR
1401, east (Lay Landing Road) 0.37 km (0.23 mi) to the Pamunkey Fish Hatchery
Building.  The gage is set on the west corner pile at the north end of the "T"
of the wooden dock located immediately SE of the Pamunkey Fish Hatchery
Building.


                         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  8

                                                                                
Station ID: 8636653                         PUBLICATION DATE:  09/12/2008
Name:       LESTER MANOR                                      
            VA
NOAA Chart: 12243                           Latitude:   37° 35.0' N (  37.58330)
USGS Quad:  NEW KENT (1978)                 Longitude:  76° 59.4' W ( -76.99000)


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


                 PRIMARY BENCH MARK STAMPING:  6653 A 2007
                         DESIGNATION:          TIDAL 6653 A

MONUMENTATION:           Tidal Station disk                    VM#:        18287
AGENCY:                  National Ocean Service (NOS)          IDB PID#:        
SETTING CLASSIFICATION:  Stainless steel rod in sleeve         OPUS PID:        
LATITUDE:   37° 34.5' N (  37.57500)          LONGITUDE:  76° 59.5' W ( -76.99170)


The primary bench mark is located 34.1 m (112.0 ft) SE of a power pole on the
north side of State Road 1401, 33.5 m (110.0 ft) SE of a hog wire fence corner,
and 4.3 m (14.0 ft) SW of the centerline of Virginia State Road 1401.  The bench
mark is a 1 cm (0.56 in) stainless steel rod driven to a depth of 11.0 m (36 ft)
inside of a 0.9 m (3 ft) 3 cm (1 in) diameter plastic extruded in sleeve, set
inside a 15 cm (6 in) diameter schedule 40 PVC pipe encased in concrete with a
Cast Aluminum Access Cover.

                          U.S. DEPARTMENT OF COMMERCE
                National Oceanic and Atmospheric Administration
                            National Ocean Service
                                                                   Page  3 of  8

                                                                                
Station ID: 8636653                         PUBLICATION DATE:  09/12/2008
Name:       LESTER MANOR                                      
            VA
NOAA Chart: 12243                           Latitude:   37° 35.0' N (  37.58330)
USGS Quad:  NEW KENT (1978)                 Longitude:  76° 59.4' W ( -76.99000)


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


                         BENCH MARK STAMPING:  6653 B 2007
                         DESIGNATION:          TIDAL 6653 B

MONUMENTATION:           Tidal Station disk                    VM#:        18288
AGENCY:                  National Ocean Service (NOS)          IDB PID#:        
SETTING CLASSIFICATION:  Concrete monument                     OPUS PID:        
LATITUDE:   37° 34.5' N (  37.57500)          LONGITUDE:  76° 59.5' W ( -76.99170)


The bench mark is a disk set in concrete monument recessed 9 cm (0.3 ft), 19.20
m (63.0 ft) SW from a 1.27 m (4.17 ft) gum tree, 6.10 m (20 ft) south from the
SW corner of a concrete pad, and 5.18 m (17 ft) NW from the NW edge of pavement
of Virginia State Road 1401.

                          U.S. DEPARTMENT OF COMMERCE
                National Oceanic and Atmospheric Administration
                            National Ocean Service
                                                                   Page  4 of  8

                                                                                
Station ID: 8636653                         PUBLICATION DATE:  09/12/2008
Name:       LESTER MANOR                                      
            VA
NOAA Chart: 12243                           Latitude:   37° 35.0' N (  37.58330)
USGS Quad:  NEW KENT (1978)                 Longitude:  76° 59.4' W ( -76.99000)


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


                         BENCH MARK STAMPING:  6653 C 2007
                         DESIGNATION:          TIDAL 6653 C

MONUMENTATION:           Tidal Station disk                    VM#:        18289
AGENCY:                  National Ocean Service (NOS)          IDB PID#:        
SETTING CLASSIFICATION:  Concrete monument                     OPUS PID:        
LATITUDE:   37° 34.5' N (  37.57500)          LONGITUDE:  76° 59.5' W ( -76.99170)


The bench mark is a disk set in concrete monument recessed 6 cm (0.2 ft) in
grass field, 50.90 m (167 ft) south of the southern shoreline of the Pamunkey
River, 32.61 m (107.0 ft) SW of the SE corner of the same residence, 24.08 m
(79.0 ft) south of a power pole, and 21.03 m (69.0 ft) south SW of the SW corner
of a 1 story brick residence.

                          U.S. DEPARTMENT OF COMMERCE
                National Oceanic and Atmospheric Administration
                            National Ocean Service
                                                                   Page  5 of  8

                                                                                
Station ID: 8636653                         PUBLICATION DATE:  09/12/2008
Name:       LESTER MANOR                                      
            VA
NOAA Chart: 12243                           Latitude:   37° 35.0' N (  37.58330)
USGS Quad:  NEW KENT (1978)                 Longitude:  76° 59.4' W ( -76.99000)


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


                         BENCH MARK STAMPING:  6653 D 2007
                         DESIGNATION:          TIDAL 6653 D

MONUMENTATION:           Tidal Station disk                    VM#:        18290
AGENCY:                  National Ocean Service (NOS)          IDB PID#:        
SETTING CLASSIFICATION:  Concrete monument                     OPUS PID:        
LATITUDE:   37° 34.5' N (  37.57500)          LONGITUDE:  76° 59.5' W ( -76.99170)


The bench mark is a disk set in concrete monument recessed 6 cm (0.2 ft) in
grass field, 49.38 m (162.0 ft) SE of the centerline of Virginia State Road
1401, 42.98 m (141.0 ft) SE of a 1.52 m (4.9 ft) twin oak tree, 2.13 m (7.0 ft)
NE of a hog wire fence corner, and 0.61 m (2.0 ft) NW of fence line.

                          U.S. DEPARTMENT OF COMMERCE
                National Oceanic and Atmospheric Administration
                            National Ocean Service
                                                                   Page  6 of  8

                                                                                
Station ID: 8636653                         PUBLICATION DATE:  09/12/2008
Name:       LESTER MANOR                                      
            VA
NOAA Chart: 12243                           Latitude:   37° 35.0' N (  37.58330)
USGS Quad:  NEW KENT (1978)                 Longitude:  76° 59.4' W ( -76.99000)


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


                         BENCH MARK STAMPING:  6653 E 2007
                         DESIGNATION:          TIDAL 6653 E

MONUMENTATION:           Tidal Station disk                    VM#:        18291
AGENCY:                  National Ocean Service (NOS)          IDB PID#:        
SETTING CLASSIFICATION:  Concrete monument                     OPUS PID:        
LATITUDE:   37° 34.5' N (  37.57500)          LONGITUDE:  76° 59.5' W ( -76.99170)


The bench mark is a disk set in concrete monument recessed 6.70 m (22.0 ft) of
Lanesville on the Pamunkey Reservation, 13.41 m (44.0 ft) NW of the NW corner of
a 2 story brick and vinyl residence red in color, 3.35 m (11.0 ft) SW of a 1.22
m (4.0 ft) fence, and 0.06 m (0.2 ft) south of the centerline of Virginia State
Road 1401.

                          U.S. DEPARTMENT OF COMMERCE
                National Oceanic and Atmospheric Administration
                            National Ocean Service
                                                                   Page  7 of  8

                                                                                
Station ID: 8636653                         PUBLICATION DATE:  09/12/2008
Name:       LESTER MANOR                                      
            VA
NOAA Chart: 12243                           Latitude:   37° 35.0' N (  37.58330)
USGS Quad:  NEW KENT (1978)                 Longitude:  76° 59.4' W ( -76.99000)


                            T I D A L   D A T U M S 


Tidal datums at LESTER MANOR based on:

     LENGTH OF SERIES:      33 DAYS
     TIME PERIOD:           02/08/2007-03/13/2007
     TIDAL EPOCH:           1983-2001
     CONTROL TIDE STATION:  8637689 YORKTOWN USCG TRAINING CENTER, YORK R.


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

     MEAN HIGHER HIGH WATER                     MHHW   =  1.006
     MEAN HIGH WATER                            MHW    =  0.953
     MEAN SEA LEVEL                             MSL    =  0.527
     MEAN TIDE LEVEL                            MTL    =  0.492
     MEAN LOW WATER                             MLW    =  0.031
     MEAN LOWER LOW WATER                       MLLW   =  0.000

North American Vertical Datum (NAVD88)

Bench Mark Elevation Information                In METERS above:

     Stamping or Designation                    MLLW        MHW

     6653 A 2007                                 1.752    0.799
     6653 B 2007                                 2.305    1.352
     6653 C 2007                                 2.400    1.447
     6653 D 2007                                 2.945    1.992
     6653 E 2007                                 3.627    2.674


Foot Notes:

 

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

                                                                                
Station ID: 8636653                         PUBLICATION DATE:  09/12/2008
Name:       LESTER MANOR                                      
            VA
NOAA Chart: 12243                           Latitude:   37° 35.0' N (  37.58330)
USGS Quad:  NEW KENT (1978)                 Longitude:  76° 59.4' W ( -76.99000)


                             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 8636653 Lester Manor, VA

Revised: 08/08/2018
NOAA / National Ocean Service
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