U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Datums Page Page 1 of 7
Station ID: 8654400 PUBLICATION DATE: 10/19/2011
Name: CAPE HATTERAS FISHING PIER
NC
NOAA Chart: 11555 Latitude: 35° 13.4' N ( 35.22330)
USGS Quad: HATTERAS Longitude: 75° 38.1' W ( -75.63500)
To reach the tidal bench marks from the Post Office at Frisco, proceed south
along State Highway 12 for 1.4 km (0.9 mi), thence 0.2 km (0.1 mi) SE along a
paved road leading to the Cape Hatteras Fishing Pier and Surf and Sound
Campground. The bench marks are around the fishing pier parking lot and the
campground area. The tide gage and staff are 6 m (20 ft) north of the offshore
end of the fishing pier.
T I D A L B E N C H M A R K S
PRIMARY BENCH MARK STAMPING: NO 1 1973
DESIGNATION: 865 4400 TIDAL 1
MONUMENTATION: Tidal Station disk VM#: 533
AGENCY: National Ocean Survey (NOS) IDB PID#: EX0250
SETTING CLASSIFICATION: Concrete monument OPUS PID:
LATITUDE: 35° 13.5' N ( 35.22500) LONGITUDE: 75° 38.2' W ( -75.63670)
The primary bench mark is a disk set in the top of a concrete monument in the
Cape Hatteras Fishing Pier asphalt parking lot, 19 m (62 ft) west of the NW end
of the SW handrail for the board walkway to the pier, 17 m (57 ft) west of a
street light pole, 7 m (22 ft) SW of the centerline of the road, and 3.17 m
(10.4 ft) SE of the north side of the parking lot.
U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Page 2 of 7
Station ID: 8654400 PUBLICATION DATE: 10/19/2011
Name: CAPE HATTERAS FISHING PIER
NC
NOAA Chart: 11555 Latitude: 35° 13.4' N ( 35.22330)
USGS Quad: HATTERAS Longitude: 75° 38.1' W ( -75.63500)
T I D A L B E N C H M A R K S
BENCH MARK STAMPING: NO 2 1973
DESIGNATION: 865 4400 TIDAL 2
MONUMENTATION: Tidal Station disk VM#: 534
AGENCY: National Ocean Survey (NOS) IDB PID#: EX0249
SETTING CLASSIFICATION: Concrete monument OPUS PID:
LATITUDE: 35° 13.6' N ( 35.22670) LONGITUDE: 75° 38.2' W ( -75.63670)
The bench mark is a disk set in the top of a concrete monument at the
intersection of State Highway 12 and the entrance road to Cape Hatteras Fishing
Pier, 14.9 m (49 ft) SE of the centerline of State Highway 12, 7.50 m (24.6 ft)
north of the center of a concrete drive of the first house on the road leading
to the pier, 6.7 m (22 ft) NE of the center of the paved road leading SE to the
pier, 0.3 m (1 ft) SW of a power line pole with a metal witness post, and 0.09 m
(0.3 ft) below ground level.
BENCH MARK STAMPING: CHNS WP 1974
DESIGNATION: 865 4400 CHNS WP
MONUMENTATION: Bench Mark disk VM#: 536
AGENCY: National Park Service (NPS) IDB PID#: AI9501
SETTING CLASSIFICATION: Concrete monument OPUS PID:
LATITUDE: 35° 13.5' N ( 35.22500) LONGITUDE: 75° 38.2' W ( -75.63670)
The bench mark is a disk set in the top of a concrete monument on the west side
of the road leading to the Cape Hatteras Fishing Pier, 35.70 m (117.1 ft) north
of Bench Mark NO 1 1973, 4.70 m (15.4 ft) SE of the southeasterly-most power
pole on the west side of the road, 3.99 m (13.1 ft) west of the centerline of
the road leading to the pier, 2.40 m (7.9 ft) east of the SE corner of a wood
fence around a residence, 0.15 m (0.5 ft) south of a 4x4-inch witness post, and
0.45 m (1.5 ft) below ground level.
U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Page 3 of 7
Station ID: 8654400 PUBLICATION DATE: 10/19/2011
Name: CAPE HATTERAS FISHING PIER
NC
NOAA Chart: 11555 Latitude: 35° 13.4' N ( 35.22330)
USGS Quad: HATTERAS Longitude: 75° 38.1' W ( -75.63500)
T I D A L B E N C H M A R K S
BENCH MARK STAMPING: 4400 B 1976
DESIGNATION: 865 4400 B TIDAL
MONUMENTATION: Tidal Station disk VM#: 538
AGENCY: National Ocean Survey (NOS) IDB PID#: EX0251
SETTING CLASSIFICATION: Galvanized steel rod OPUS PID:
LATITUDE: 35° 13.6' N ( 35.22670) LONGITUDE: 75° 38.1' W ( -75.63500)
The bench mark is a disk located near the NE corner of the parking lot for the
Cape Hatteras Fishing Pier, 63.09 m (207.0 ft) NE of the center of the paved
road leading to the pier, 37.95 m (124.5 ft) south of the SE corner of a 3-story
house which is directly behind the mark, 2.13 m (7.0 ft) north of the NE corner
of the parking lot, 0.30 m (1.0 ft) south of a 4x4-inch wooden post with witness
sign, and 1.22 m (4.0 ft) below the top of the witness post. The bench mark is
crimped to the top of a galvanized steel rod driven 12.2 m (40 ft) to refusal,
and encased in a PVC pipe and concrete kickblock.
BENCH MARK STAMPING: 4400 C 1976
DESIGNATION: 865 4400 C TIDAL
MONUMENTATION: Tidal Station disk VM#: 539
AGENCY: National Ocean Survey (NOS) IDB PID#: EX0254
SETTING CLASSIFICATION: Galvanized steel rod OPUS PID:
LATITUDE: 35° 13.6' N ( 35.22670) LONGITUDE: 75° 38.1' W ( -75.63500)
The bench mark is a disk located north of the parking lot for the Cape Hatteras
Fishing Pier, in front of the third house east of the end of the road at 54099
Marlin Court, 46.63 m (153.0 ft) east of the west end of the road, and 4.48 m
(14.7 ft) west of the center of the driveway to the house, and 4.6 m (15 ft)
south of the center of the paved road. The bench mark is crimped to the top of
a galvanized steel rod driven 12.2 m (40 ft) to refusal, and encased in a 5-inch
logo cap.
U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Page 4 of 7
Station ID: 8654400 PUBLICATION DATE: 10/19/2011
Name: CAPE HATTERAS FISHING PIER
NC
NOAA Chart: 11555 Latitude: 35° 13.4' N ( 35.22330)
USGS Quad: HATTERAS Longitude: 75° 38.1' W ( -75.63500)
T I D A L B E N C H M A R K S
BENCH MARK STAMPING: 4400 E 1976
DESIGNATION: 865 4400 E TIDAL
MONUMENTATION: Tidal Station disk VM#: 540
AGENCY: National Ocean Survey (NOS) IDB PID#: EX0256
SETTING CLASSIFICATION: Unspecified deep rod OPUS PID:
LATITUDE: 35° 13.6' N ( 35.22670) LONGITUDE: 75° 38.3' W ( -75.63830)
The bench mark is a disk located 11.61 m (38.1 ft) north of the centerline of
State Highway 12, 1.50 m (4.9 ft) south of power pole No. 22-157 with NOAA
witness sign, and 1.13 m (3.7 ft) south of telephone box No. 12SP/172W. The
bench mark is at ground level, crimped to the top of an unspecified deep rod
driven 12.2 m (40 ft) to refusal, and encased in a PVC pipe and concrete
kickblock.
BENCH MARK STAMPING: 4400 F 1980
DESIGNATION: 865 4400 F TIDAL
MONUMENTATION: Tidal Station disk VM#: 541
AGENCY: National Ocean Survey (NOS) IDB PID#: AI9499
SETTING CLASSIFICATION: Stainless steel rod OPUS PID#: AI9499
LATITUDE: 35° 13.6' N ( 35.22670) LONGITUDE: 75° 38.3' W ( -75.63830)
The bench mark is a disk located 12.41 m (40.7 ft) north of the centerline of
State Highway 12, 6.49 m (12.3 ft) west of the centerline of a paved road
running north of Highway 12 just to the east side of the mark, 4.11 m (13.5 ft)
ESE of a red fire hydrant, and 0.70 m (2.3 ft) south of a power pole. The bench
mark is at ground level, crimped to the top of a stainless steel rod driven 11.0
m (36 ft) to refusal, and encased in a 4-inch PVC pipe and concrete kickblock.
U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Page 5 of 7
Station ID: 8654400 PUBLICATION DATE: 10/19/2011
Name: CAPE HATTERAS FISHING PIER
NC
NOAA Chart: 11555 Latitude: 35° 13.4' N ( 35.22330)
USGS Quad: HATTERAS Longitude: 75° 38.1' W ( -75.63500)
T I D A L B E N C H M A R K S
BENCH MARK STAMPING: 4400 G 1980
DESIGNATION: 865 4400 G TIDAL
MONUMENTATION: Tidal Station disk VM#: 542
AGENCY: National Ocean Survey (NOS) IDB PID#: AI9500
SETTING CLASSIFICATION: Stainless steel rod OPUS PID:
LATITUDE: 35° 13.6' N ( 35.22670) LONGITUDE: 75° 38.4' W ( -75.64000)
The bench mark is a disk located next to State Highway 12, 75.29 m (247.0 ft)
west of power pole No. 22-159, 12.71 m (41.7 ft) north of the centerline of
Highway 12, and 0.80 m (2.6 ft) south of Power Pole No. 22-160 with a metal
witness post. The bench mark is crimped to the top of a stainless steel rod
driven 12.8 m (42 ft) to refusal, and encased in a 4-inch PVC pipe and concrete
kickblock.
BENCH MARK STAMPING: 865 4400 H 1997
DESIGNATION: 865 4400 H
MONUMENTATION: Flange-encased Rod VM#: 13781
AGENCY: National Ocean Service (NOS) IDB PID#:
SETTING CLASSIFICATION: Stainless steel rod in sleeve OPUS PID:
LATITUDE: 35° 13.6' N ( 35.22670) LONGITUDE: 75° 38.3' W ( -75.63830)
The bench mark is a flange-encased rod located approximately on the south side
of a feeder road at the Surf and Sound Community, 152.4 m (500 ft) west of the
road leading to the Cape Hatteras Fishing Pier, 46.33 m (152.0 ft) NE of the NE
corner of a 3-story beach house named Wave Rider, 42.37 m (139.0 ft) west of a
power pole with transformer, 25.66 m (84.2 ft) south of Highway 12, 3.69 m (12.1
ft) east of a power pole with transformer, and 0.43 m (1.4 ft) north of a NOAA
witness sign. The datum point is at ground level, being the top of a stainless
steel rod driven 18.3 m (60 ft) to refusal and encased in a sleeve and 5-inch
logo cap.
U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Page 6 of 7
Station ID: 8654400 PUBLICATION DATE: 10/19/2011
Name: CAPE HATTERAS FISHING PIER
NC
NOAA Chart: 11555 Latitude: 35° 13.4' N ( 35.22330)
USGS Quad: HATTERAS Longitude: 75° 38.1' W ( -75.63500)
T I D A L D A T U M S
Tidal datums at CAPE HATTERAS FISHING PIER based on:
LENGTH OF SERIES: 19 YEARS
TIME PERIOD: January 1983 - December 2001
TIDAL EPOCH: 1983-2001
CONTROL TIDE STATION:
Elevations of tidal datums referred to Mean Lower Low Water (MLLW), in METERS:
HIGHEST OBSERVED WATER LEVEL (09/04/1999) = 1.894
MEAN HIGHER HIGH WATER MHHW = 1.056
MEAN HIGH WATER MHW = 0.947
North American Vertical Datum NAVD88 = 0.627
MEAN SEA LEVEL MSL = 0.492
MEAN TIDE LEVEL MTL = 0.491
MEAN LOW WATER MLW = 0.036
MEAN LOWER LOW WATER MLLW = 0.000
LOWEST OBSERVED WATER LEVEL (03/16/1980) = -0.703
North American Vertical Datum (NAVD88)
Bench Mark Elevation Information In METERS above:
Stamping or Designation MLLW MHW
NO 1 1973 2.447 1.500
NO 2 1973 1.440 0.493
CHNS WP 1974 1.952 1.005
4400 B 1976 2.878 1.931
4400 C 1976 1.702 0.755
4400 E 1976 1.408 0.461
4400 F 1980 1.441 0.494
4400 G 1980 1.704 0.757
865 4400 H 1997 1.379 0.432
U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Page 7 of 7
Station ID: 8654400 PUBLICATION DATE: 10/19/2011
Name: CAPE HATTERAS FISHING PIER
NC
NOAA Chart: 11555 Latitude: 35° 13.4' N ( 35.22330)
USGS Quad: HATTERAS Longitude: 75° 38.1' W ( -75.63500)
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.