U.S. DEPARTMENT OF COMMERCE
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National Ocean Service
Datums Page Page 1 of 9
Station ID: 8652587 PUBLICATION DATE: 11/15/2012
Name: OREGON INLET MARINA, PAMLICO SOUND
NC
NOAA Chart: 12204 Latitude: 35° 47.7' N ( 35.79500)
USGS Quad: OREGON INLET Longitude: 75° 32.9' W ( -75.54830)
To reach the tidal benchmarks on the outerbanks, proceed south on State Highway
12 to Oregon Inlet. The benchmarks are in the area near the Oregon Inlet Marina
at the north end of State Highway 12 (Herbert C. Bonner) bridge over the Oregon
Inlet. The tide gage is located on the west side of the marina near its
entrance from the bay.
T I D A L B E N C H M A R K S
PRIMARY BENCH MARK STAMPING: NO 3 1974
DESIGNATION: 865 2587 TIDAL 3
MONUMENTATION: Tidal Station disk VM#: 3540
AGENCY: National Ocean Survey (NOS) IDB PID#: EX0150
SETTING CLASSIFICATION: Concrete wing wall OPUS PID:
LATITUDE: 35° 47.7' N ( 35.79486) LONGITUDE: 75° 32.8' W ( -75.54653)
The primary bench mark is a disk set flush in a concrete wing wall on the west
side of the roadway, at the north end of the Herbert C. Bonner Bridge (N.C.
State Route 12) across Oregon Inlet, and 5.79 m (19.0 ft) west of the centerline
of State Highway 12.
U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Page 2 of 9
Station ID: 8652587 PUBLICATION DATE: 11/15/2012
Name: OREGON INLET MARINA, PAMLICO SOUND
NC
NOAA Chart: 12204 Latitude: 35° 47.7' N ( 35.79500)
USGS Quad: OREGON INLET Longitude: 75° 32.9' W ( -75.54830)
T I D A L B E N C H M A R K S
BENCH MARK STAMPING: NO 1 1974
DESIGNATION: 865 2587 TIDAL 1
MONUMENTATION: Tidal Station disk VM#: 3538
AGENCY: National Ocean Survey (NOS) IDB PID#: EX0162
SETTING CLASSIFICATION: Concrete base OPUS PID:
LATITUDE: 35° 47.8' N ( 35.79670) LONGITUDE: 75° 32.9' W ( -75.54830)
The bench mark is a disk set flush in a concrete pad for 2 transformers, in the
SW corner of a 1.52 m x 1.52 m (5.0 ft x 5.0 ft) concrete base, 7.32 m (24.0 ft)
NE of a sandbag sea wall, 3.47 m (11.4 ft) NW of the SW corner of the fishing
center building, 1.80 m (5.9 ft) SSW of the NW corner of the concrete base which
is 0.91 m (3.0 ft), and 0.91 m (3.0 ft) above the ground level.
BENCH MARK STAMPING: NO 2 1974
DESIGNATION: 865 2587 TIDAL 2
MONUMENTATION: Tidal Station disk VM#: 3539
AGENCY: National Ocean Survey (NOS) IDB PID#: EX0160
SETTING CLASSIFICATION: Concrete deck OPUS PID:
LATITUDE: 35° 47.7' N ( 35.79508) LONGITUDE: 75° 32.9' W ( -75.54792)
The bench mark is a disk set flush in the concrete deck at the fish weigh-in
area across the marina from the Oregon Inlet Marina Fishing Center, 36.00 m
(118.1 ft) north of the old boat ramp, 8.99 m (29.5 ft) north of the SE corner
of the weigh station, 7.86 m (25.8 ft) SE of the marina bulkhead, and 0.30 m
(1.0 ft) above the parking lot. At oregon inlet marina, at the north end of
the state hwy 12 (herbert c. Bonner) bridge over oregon inlet, at the oregon
inlet fishing center,the bench mark is set flush in the concrete deck at the
fish weigh-in the area across the marina from the fishing center, 118.1 ft (36.0
m) north of the old boat ramp, 29.5 ft (9.0 m) north of the se corner of the
weigh station, and 25.8 ft (7.9 m) se of the marina bulkhead.
U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Page 3 of 9
Station ID: 8652587 PUBLICATION DATE: 11/15/2012
Name: OREGON INLET MARINA, PAMLICO SOUND
NC
NOAA Chart: 12204 Latitude: 35° 47.7' N ( 35.79500)
USGS Quad: OREGON INLET Longitude: 75° 32.9' W ( -75.54830)
T I D A L B E N C H M A R K S
BENCH MARK STAMPING: NO 4 1974
DESIGNATION: 865 2587 TIDAL 4
MONUMENTATION: Tidal Station disk VM#: 3541
AGENCY: National Ocean Survey (NOS) IDB PID#: EX0149
SETTING CLASSIFICATION: Concrete wing wall OPUS PID:
LATITUDE: 35° 47.7' N ( 35.79483) LONGITUDE: 75° 32.8' W ( -75.54664)
The bench mark is a disk set flush in the concrete wing wall on the east side of
the roadway, at the north end of the Herbert C. Bonner Bridge (N.C. State Route
12) across Oregon Inlet, 6.71 m (22.0 ft) east of the centerline of the highway,
and 0.30 m (1 ft ) above the highway.
U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Page 4 of 9
Station ID: 8652587 PUBLICATION DATE: 11/15/2012
Name: OREGON INLET MARINA, PAMLICO SOUND
NC
NOAA Chart: 12204 Latitude: 35° 47.7' N ( 35.79500)
USGS Quad: OREGON INLET Longitude: 75° 32.9' W ( -75.54830)
T I D A L B E N C H M A R K S
BENCH MARK STAMPING:
DESIGNATION: 4.54 NPS
ALIAS: NO STAMPING 1
MONUMENTATION: Survey disk VM#: 3542
AGENCY: National Park Service (NPS) IDB PID#: EX0161
SETTING CLASSIFICATION: Concrete base OPUS PID:
LATITUDE: 35° 47.8' N ( 35.79670) LONGITUDE: 75° 32.8' W ( -75.54670)
The bench mark is a disk set in the top of the east end of the concrete base of
the gasoline pump island at the north end of Oregon Inlet Marina, 61.26 m (201.0
ft) NE of the NE corner of the fishing center building, 8.50 m (27.9 ft) north
of the marina bulkhead, and 8.02 m (26.3 ft) SW of a fire hydrant.
BENCH MARK STAMPING: 6-92 JKA 14
DESIGNATION: 865 2587 JKA 14
MONUMENTATION: Survey disk VM#: 16008
AGENCY: NC Department of Transportation (NDOT) IDB PID#: DG8920
SETTING CLASSIFICATION: Concrete monument OPUS PID:
LATITUDE: 35° 47.9' N ( 35.79853) LONGITUDE: 75° 32.8' W ( -75.54617)
The bench mark is a disk set in a concrete monument at the north end of the
Herbert C. Bonner bridge over the Oregon Inlet, on the east side of Highway 12,
22.90 m (75.1 ft) north of the east post of a highway sign, 16.00 m (52.5 ft) SW
of the SW corner of a concrete storm drain, 10.65 m (34.9 ft) east of the
centerline of Highway 12, and at ground level.
U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Page 5 of 9
Station ID: 8652587 PUBLICATION DATE: 11/15/2012
Name: OREGON INLET MARINA, PAMLICO SOUND
NC
NOAA Chart: 12204 Latitude: 35° 47.7' N ( 35.79500)
USGS Quad: OREGON INLET Longitude: 75° 32.9' W ( -75.54830)
T I D A L B E N C H M A R K S
BENCH MARK STAMPING: NC12 35 2000
DESIGNATION: 865 2587 NC12 35
MONUMENTATION: Horizontal Station disk VM#: 16407
AGENCY: North Carolina Geodetic Survey (NCGS) IDB PID#: DG8921
SETTING CLASSIFICATION: Concrete monument OPUS PID#: DG8921
LATITUDE: 35° 47.9' N ( 35.79830) LONGITUDE: 75° 32.8' W ( -75.54670)
The bench mark is a disk set in top of a concrete monument near the entrance to
Oregon Inlet Fishing Center along State Route 12, 40.36 m (132.4 ft) NNE of the
east post of the Oregon Inlet Fishing Center sign, 21.85 m (71.7 ft) NE of the
projection of State Route 12 and a grass island at the entrance to the fishing
center, 14.11 m (46.3 ft) ESE of the centerline of the highway, 0.55 m (1.8 ft)
west of a carsonite witness post, and 0.43 m (1.4 ft) NW of a concrete utility
vault.
BENCH MARK STAMPING: 2587 A 2006
DESIGNATION: 865 2587 TIDAL A
MONUMENTATION: Tidal Station disk VM#: 18220
AGENCY: National Ocean Service (NOS) IDB PID#:
SETTING CLASSIFICATION: Deep rod OPUS PID#: BBDL50
LATITUDE: 35° 47.9' N ( 35.79830) LONGITUDE: 75° 32.8' W ( -75.54670)
The bench mark is a deep rod with a concrete kick block located at the north end
of the State Highway 12 (Herbert C. Bonner) bridge over Oregon Inlet, 3.51 m
(11.5 ft) west of the face of the Yaucht Basin Bulkhead, 1.0 m (3.3 ft) SSW of a
0.91 m x 0.30 (3.0 ft x 2.5 ft) concrete wind bird pad, and 0.22 m (0.7 ft) east
of the witness post.
U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Page 6 of 9
Station ID: 8652587 PUBLICATION DATE: 11/15/2012
Name: OREGON INLET MARINA, PAMLICO SOUND
NC
NOAA Chart: 12204 Latitude: 35° 47.7' N ( 35.79500)
USGS Quad: OREGON INLET Longitude: 75° 32.9' W ( -75.54830)
T I D A L B E N C H M A R K S
BENCH MARK STAMPING: 2587 B 2006
DESIGNATION: 865 2587 TIDAL B
MONUMENTATION: Tidal Station disk VM#: 18221
AGENCY: National Ocean Service (NOS) IDB PID#:
SETTING CLASSIFICATION: Deep rod OPUS PID:
LATITUDE: 35° 47.9' N ( 35.79830) LONGITUDE: 75° 32.8' W ( -75.54670)
The bench mark is a deep rod with a concrete kick block located at the north end
of the State Highway 12 (Herbert C. Bonner) bridge over Oregon Inlet, 85.20 m
(279.5 ft) west of the west edge of bench mark NC12 35 2000, 29.75 m (97.6 ft)
north of the parking boat ramp sign at the entrance to Coast Guard, 11.45 m
(37.6 ft) SSW of the DO NOT ENTER sign at the Coast Guard Base, 8.90 m (29.2 ft)
SSE of the stop sign with the notice THIS ROAD IS FOR COAST GUARD RELATED USE
ONLY, 6.10 m (20.0 ft) west of the US Department of Homeland Security U.S. Coast
Guard Oregon Inlet, NC, and 0.30 m (1 ft) west of a NOAA witness post.
BENCH MARK STAMPING: 2587 C 2006
DESIGNATION: 865 2587 TIDAL C
MONUMENTATION: Tidal Station disk VM#: 18222
AGENCY: National Ocean Service (NOS) IDB PID#:
SETTING CLASSIFICATION: Deep rod OPUS PID:
LATITUDE: 35° 47.9' N ( 35.79830) LONGITUDE: 75° 32.8' W ( -75.54670)
The bench mark is a deep rod with a concrete kick block located at the north end
of the State Highway 12 (Herbert C. Bonner) bridge over Oregon Inlet, 90.40 m
(296.6 ft) south from the south edge of the road leading into the Coast Guard
and Marina entrance from bench mark NC12 35 2000, 52.60 m (172.6 ft) west of the
west edge of bench mark NC12 35 2000, 3.85 m (12.6 ft) east of the edge of the
road leading to the Oregon Inlet entrance road, and 0.10 m (0.33 ft) west from
the NOAA witness post.
U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Page 7 of 9
Station ID: 8652587 PUBLICATION DATE: 11/15/2012
Name: OREGON INLET MARINA, PAMLICO SOUND
NC
NOAA Chart: 12204 Latitude: 35° 47.7' N ( 35.79500)
USGS Quad: OREGON INLET Longitude: 75° 32.9' W ( -75.54830)
T I D A L B E N C H M A R K S
BENCH MARK STAMPING:
DESIGNATION: 4.54 NPS RESET
ALIAS: NO STAMPING 1
MONUMENTATION: Survey disk VM#: 20246
AGENCY: National Park Service (NPS) IDB PID#:
SETTING CLASSIFICATION: Concrete base OPUS PID:
LATITUDE: 35° 47.8' N ( 35.79681) LONGITUDE: 75° 32.8' W ( -75.54731)
This mark will be re-described when the station is visited in FY12.
U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Page 8 of 9
Station ID: 8652587 PUBLICATION DATE: 11/15/2012
Name: OREGON INLET MARINA, PAMLICO SOUND
NC
NOAA Chart: 12204 Latitude: 35° 47.7' N ( 35.79500)
USGS Quad: OREGON INLET Longitude: 75° 32.9' W ( -75.54830)
T I D A L D A T U M S
Tidal datums at OREGON INLET MARINA, PAMLICO SOUND based on:
LENGTH OF SERIES: 17 YEARS
TIME PERIOD: January 1995 - December 2011
TIDAL EPOCH: 1983-2001
CONTROL TIDE STATION: 8651370 DUCK, FRF PIER
Elevations of tidal datums referred to Mean Lower Low Water (MLLW), in METERS:
HIGHEST OBSERVED WATER LEVEL (08/28/2011) = 2.285
MEAN HIGHER HIGH WATER MHHW = 0.360
MEAN HIGH WATER MHW = 0.317
North American Vertical Datum NAVD88 = 0.215
MEAN TIDE LEVEL MTL = 0.178
MEAN SEA LEVEL MSL = 0.177
MEAN LOW WATER MLW = 0.040
MEAN LOWER LOW WATER MLLW = 0.000
LOWEST OBSERVED WATER LEVEL (03/10/1996) = -0.593
North American Vertical Datum (NAVD88)
Bench Mark Elevation Information In METERS above:
Stamping or Designation MLLW MHW
NO 3 1974 4.426 4.109
NO 1 1974 2.039 1.722
NO 2 1974 1.296 0.979
NO 4 1974 4.426 4.109
4.54 NPS 1.283 0.966
6-92 JKA 14 1.992 1.675
NC12 35 2000 1.978 1.661
2587 A 2006 0.970 0.653
2587 B 2006 1.144 0.827
2587 C 2006 0.938 0.621
4.54 NPS RESET 1.321 1.004
U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Page 9 of 9
Station ID: 8652587 PUBLICATION DATE: 11/15/2012
Name: OREGON INLET MARINA, PAMLICO SOUND
NC
NOAA Chart: 12204 Latitude: 35° 47.7' N ( 35.79500)
USGS Quad: OREGON INLET Longitude: 75° 32.9' W ( -75.54830)
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.