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

Bench Mark Sheet for 8658163, Wrightsville Beach NC

Superseded Epoch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Small blue map location marker Unpublished bench mark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  9

                                                                                
Station ID: 8658163                                PUBLICATION DATE:  09/13/2017
Name:       WRIGHTSVILLE BEACH                                
            NC
NOAA Chart: 11539                                  Latitude:         34° 12.8' N
USGS Quad:  WRIGHTSVILLE BEACH                     Longitude:        77° 47.2' W


To reach the tidal bench marks from the intersection of 17 south and 74 East in
Wilmington, proceed east on 74 east for 8.0 km (5.0 mi) toward Wrightsville
Beach, once over the drawbridge bear left on 74E to the intersection of Lumina
Avenue and East Salisbury Street, continue through the light to the end of the
street to Johnny Mercers Fishing Pier. The bench marks are located on East
Salisbury Street and extend down N. Lumina Ave. The tide gauge is located on the
offshore end of the pier.


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


                 PRIMARY BENCH MARK STAMPING:  8163 A 2004
                         DESIGNATION:          865 8163 A

MONUMENTATION:           Tidal Station disk                        VM#:    17624
AGENCY:                  National Ocean Service (NOS)              PID:         
SETTING CLASSIFICATION:  Stainless steel rod in sleeve


The primary bench mark is a disk located at the east end of East Salisbury
Street in the sand on the south side of the walkway to Johnny Mercers Fishing
Pier, 16.74 m (54.9 ft) NE of the NW corner of the public restrooms, 3.95 m
(13.0 ft) SE of the south rail of the walkway, 2.86 m (9.4 ft) east of a NOAA
witness post, and 2.70 m (8.9 ft) east of the southern leg of the sign for the
Johnny Mercers Fishing Pier. The bench mark is set 0.3 m (1 ft) below the sand,
crimped to the top of a stainless steel rod driven 21.6 m (71 ft) to refusal,
encased in a 1.0 m (3.2 ft) grease sleeve with aluminum access cover and
concrete kickblock.

                          U.S. DEPARTMENT OF COMMERCE
                National Oceanic and Atmospheric Administration
                            National Ocean Service
                                                                   Page  2 of  9

                                                                                
Station ID: 8658163                                PUBLICATION DATE:  09/13/2017
Name:       WRIGHTSVILLE BEACH                                
            NC
NOAA Chart: 11539                                  Latitude:         34° 12.8' N
USGS Quad:  WRIGHTSVILLE BEACH                     Longitude:        77° 47.2' W


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


                         BENCH MARK STAMPING:  8163 B 2004
                         DESIGNATION:          865 8163 B

MONUMENTATION:           Tidal Station disk                        VM#:    17625
AGENCY:                  National Ocean Service (NOS)              PID:         
SETTING CLASSIFICATION:  Concrete pier deck


The benchmark is a disk set flush in the concrete deck of the Johnny Mercer
Fishing Pier, near the offshore end of the pier, 18.6 m (61.0 ft) NNW of the
south end of the pier, 7.79 m (25.6 ft) west of the east side of the pier, and
7.76 m (25.5 ft) east of the west side of the pier.



                         BENCH MARK STAMPING:  8163 C 2004
                         DESIGNATION:          865 8163 C

MONUMENTATION:           Tidal Station disk                        VM#:    17626
AGENCY:                  National Ocean Service (NOS)              PID:         
SETTING CLASSIFICATION:  Concrete pier deck


The benchmark is a disk set flush in the concrete deck of the Johnny Mercer
Fishing Pier, near the center of the pier, approximately 96.41 m (316.3 ft)
south of the south side of the pier house, 12.48 m (40.9 ft) SSE of the 5th
light pole south of the pier house, 5.65 m (18.54 ft) NNW of the 6th light pole
south of the pier house, and 3.22 (10.6 ft) NE of the SW side of the pier.

                          U.S. DEPARTMENT OF COMMERCE
                National Oceanic and Atmospheric Administration
                            National Ocean Service
                                                                   Page  3 of  9

                                                                                
Station ID: 8658163                                PUBLICATION DATE:  09/13/2017
Name:       WRIGHTSVILLE BEACH                                
            NC
NOAA Chart: 11539                                  Latitude:         34° 12.8' N
USGS Quad:  WRIGHTSVILLE BEACH                     Longitude:        77° 47.2' W


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


                         BENCH MARK STAMPING:  PIER NO 1 1962
                         DESIGNATION:          PIER RM 1

MONUMENTATION:           Reference Mark disk                       VM#:    17627
AGENCY:                  National Geodetic Survey (NGS)            PID#:  EA3649
SETTING CLASSIFICATION:  Concrete monument


The benchmark is a disk set flush in a concrete monument in the center of a
concrete median strip, 34.20 m (112.2 ft) west of the NW corner of the public
restrooms, 2.75 m (9.0 ft) east of a light pole number ABD74Q, and 1.54 m (5.0
ft) SSW of the north curb of the median strip.

                          U.S. DEPARTMENT OF COMMERCE
                National Oceanic and Atmospheric Administration
                            National Ocean Service
                                                                   Page  4 of  9

                                                                                
Station ID: 8658163                                PUBLICATION DATE:  09/13/2017
Name:       WRIGHTSVILLE BEACH                                
            NC
NOAA Chart: 11539                                  Latitude:         34° 12.8' N
USGS Quad:  WRIGHTSVILLE BEACH                     Longitude:        77° 47.2' W


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


                         BENCH MARK STAMPING:  C 163 1963
                         DESIGNATION:          C 163

MONUMENTATION:           Bench Mark disk                           VM#:    17628
AGENCY:                  National Geodetic Survey (NGS)            PID#:  EA0631
SETTING CLASSIFICATION:  Copper clad steel rod


The benchmark is a disk located at the junction of North Lumina Avenue and
Raleigh Street, 6.86 m (22.5 ft) SE of the centerline of the avenue, 6.71 m
(22.0 ft) SW of the centerline of the street, 77.66 m (254.8 ft) NE of benchmark
D 163 1963, 12.37 m (40.6 ft) NW of the NW corner of a frame house, and 0.31 m
(1.0 ft) SW of a power line pole with two transformers.  The bench mark is
crimped to the top of a copper coated steel rod, projecting 2 inches above the
level of the ground and protected by a 3 inch tile which projects 3 inches above
the level of the ground, and driven to a depth of 14.6 m (48 ft) to refusal.

                          U.S. DEPARTMENT OF COMMERCE
                National Oceanic and Atmospheric Administration
                            National Ocean Service
                                                                   Page  5 of  9

                                                                                
Station ID: 8658163                                PUBLICATION DATE:  09/13/2017
Name:       WRIGHTSVILLE BEACH                                
            NC
NOAA Chart: 11539                                  Latitude:         34° 12.8' N
USGS Quad:  WRIGHTSVILLE BEACH                     Longitude:        77° 47.2' W


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


                         BENCH MARK STAMPING:  D 163 1963
                         DESIGNATION:          D 163

MONUMENTATION:           Bench Mark disk                           VM#:    17629
AGENCY:                  National Geodetic Survey (NGS)            PID#:  EA0630
SETTING CLASSIFICATION:  Copper clad steel rod


The benchmark is a disk located at the junction of North Lumina Avenue and
Charlotte Street, 7.10 m (23.29 ft) NW of the center line of the avenue, 7.93 m
(26.02 ft) SW of the centerline of the street, 77.66 m (254.8 ft) SW of
benchmark C 163 1963, 19.51 m (64.0 ft) SE of the east corner of a house at NO.
207, 35.05 m (115.0 ft) north of and across the avenue from NO 3 1923, 0.24 m
(0.8 ft) NE of a board fence, and 0.24 m (0.8 ft) SW of a power line pole.  The
bench mark is crimped to the top of a copper coated steel rod, projecting 4
inches above the level of the ground and protected by a 3-inch tile which
projects 4 inches above the level of the ground, and driven to a depth of 15.8 m
(52 ft) to refusal.

                          U.S. DEPARTMENT OF COMMERCE
                National Oceanic and Atmospheric Administration
                            National Ocean Service
                                                                   Page  6 of  9

                                                                                
Station ID: 8658163                                PUBLICATION DATE:  09/13/2017
Name:       WRIGHTSVILLE BEACH                                
            NC
NOAA Chart: 11539                                  Latitude:         34° 12.8' N
USGS Quad:  WRIGHTSVILLE BEACH                     Longitude:        77° 47.2' W


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


                         BENCH MARK STAMPING:  PIER NO 2 1962
                         DESIGNATION:          PIER RM 2

MONUMENTATION:           Reference Mark disk                       VM#:    17630
AGENCY:                  National Geodetic Survey (NGS)            PID#:  EA3650
SETTING CLASSIFICATION:  Concrete median


The benchmark is a disk set flush in a concrete monument in the center of a
concrete median strip, 22.71 m (74.5 ft) south of a fire hydrant, 21.15 m (69.4
ft) east of a light pole number ABD72Q, and 8.51 m (27.9 ft) NNE of the
centerline of the south lane of the street.



                         BENCH MARK STAMPING:  NO 4 1923
                         DESIGNATION:          865 8163 TIDAL 4

MONUMENTATION:           Tidal Station disk                        VM#:    18218
AGENCY:                  US Coast and Geodetic Survey (USC&GS)     PID#:  EA0628
SETTING CLASSIFICATION:  Concrete monument


The bench mark is a disk set flush in the top of a concrete monument 0.61 m (2.0
ft) below the level of the ground, at the intersection of North Lumina Avenue
and North Atlanta Street, west of the south corner of a concrete wall around a
yard, encased in a 0.3 m (1 ft) diameter concrete kick block with 5 inch PVC
Pipe and access cover, 34.75 m (114 ft) WSW of bench mark NO 3 1923, 16.00 m
(52.5 ft) NW of the fire plug on the east side of Lumina Street, 14.63 m (48.0
ft) SW of the south corner of the house facing Atlanta Street, 8.08 m (26.5 ft)
NW of the centerline of Lumina Avenue, and 7.32 m (24 ft) NE of the centerline
of Atlanta Street.

                          U.S. DEPARTMENT OF COMMERCE
                National Oceanic and Atmospheric Administration
                            National Ocean Service
                                                                   Page  7 of  9

                                                                                
Station ID: 8658163                                PUBLICATION DATE:  09/13/2017
Name:       WRIGHTSVILLE BEACH                                
            NC
NOAA Chart: 11539                                  Latitude:         34° 12.8' N
USGS Quad:  WRIGHTSVILLE BEACH                     Longitude:        77° 47.2' W


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


                         BENCH MARK STAMPING:  NCGS 10 1994
                         DESIGNATION:          NCGS 10

MONUMENTATION:           Cap-and-Bolt                              VM#:    18219
AGENCY:                  US Army Corps of Engineers (USE)          PID#:  DG8630
SETTING CLASSIFICATION:  Beach sand dunes


The bench mark is a disk set in the sand dunes of the beach recessed about 18 cm
(0.6 ft) below the ground, at the east end of Oceanic Avenue, 25.40 m (83.3 ft)
east of the SE corner of apartment building No. 24, 24.20 m (79.4 ft) SE of the
NE corner of the apartment building, 22.0 m (72.2 ft) SSE of the centerline of
the east end of Oceanic Avenue, and 0.3 m (1 ft) north of a witness post.



                         BENCH MARK STAMPING:  NO 7 1974
                         DESIGNATION:          865 8163 TIDAL 7

MONUMENTATION:           Traverse Station disk                     VM#:    18998
AGENCY:                  NOS                                       PID:         
SETTING CLASSIFICATION:  sidewalk


The bench mark is located at Wrightsville beach along N. Lumina avenue near the
intersection of N. Lumina avenue and E. Atlanta St, set flush in the sidewalk
25.5 ft (7.8 m) south of the centerline of east Atlanta St, 22.6 ft (6.9 m) west
of the northwest corner of a porch of a house at 106 N. Lumina avenue, and 21.6
ft (6.6 m) east of N. Lumina ave.

                          U.S. DEPARTMENT OF COMMERCE
                National Oceanic and Atmospheric Administration
                            National Ocean Service
                                                                   Page  8 of  9

                                                                                
Station ID: 8658163                                PUBLICATION DATE:  09/13/2017
Name:       WRIGHTSVILLE BEACH                                
            NC
NOAA Chart: 11539                                  Latitude:         34° 12.8' N
USGS Quad:  WRIGHTSVILLE BEACH                     Longitude:        77° 47.2' W


                            T I D A L   D A T U M S 


Tidal datums at WRIGHTSVILLE BEACH based on:

     LENGTH OF SERIES:      9 YEARS
     TIME PERIOD:           10/04-9/08, 9/09-8/11, 6/12-5/13, 10/13-9/15
     TIDAL EPOCH:           1983-2001
     CONTROL TIDE STATION:  8656483 BEAUFORT, DUKE MARINE LAB


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

     HIGHEST OBSERVED WATER LEVEL (10/04/2015)         =  2.263
     MEAN HIGHER HIGH WATER                     MHHW   =  1.366
     MEAN HIGH WATER                            MHW    =  1.261
     North American Vertical Datum              NAVD88 =  0.827
     MEAN SEA LEVEL                             MSL    =  0.658
     MEAN TIDE LEVEL                            MTL    =  0.655
     MEAN LOW WATER                             MLW    =  0.048
     MEAN LOWER LOW WATER                       MLLW   =  0.000
     LOWEST  OBSERVED WATER LEVEL (01/08/2009)         = -0.806

North American Vertical Datum (NAVD88)

Bench Mark Elevation Information                In METERS above:

     Stamping or Designation                    MLLW        MHW

     8163 A 2004                                 4.262    3.001
     8163 B 2004                                 8.119    6.858
     8163 C 2004                                 8.154    6.893
     PIER NO 1 1962                              3.396    2.135
     C 163 1963                                  3.056    1.795
     D 163 1963                                  2.605    1.344
     PIER NO 2 1962                              2.812    1.551
     NO 4 1923                                   2.069    0.808
     NCGS 10 1994                                4.599    3.338
     NO 7 1974                                   2.206    0.945


                          U.S. DEPARTMENT OF COMMERCE
                National Oceanic and Atmospheric Administration
                            National Ocean Service
                                                                   Page  9 of  9

                                                                                
Station ID: 8658163                                PUBLICATION DATE:  09/13/2017
Name:       WRIGHTSVILLE BEACH                                
            NC
NOAA Chart: 11539                                  Latitude:         34° 12.8' N
USGS Quad:  WRIGHTSVILLE BEACH                     Longitude:        77° 47.2' W


                             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 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 8658163 Wrightsville Beach, NC

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