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National Ocean Service
Datums Page Page 1 of 9
Station ID: 9413450 PUBLICATION DATE: 10/12/2011
Name: MONTEREY, MONTEREY HARBOR
CA
NOAA Chart: 18685 Latitude: 36° 36.3' N ( 36.60500)
USGS Quad: MONTEREY Longitude: 121° 53.3' W (-121.88800)
To reach the tidal bench marks from North on Highway #1 in Monterey, take
Highway 1 South to Munras Avenue exit, then take a right on Del Monte, turn left
on Figueroa Street which dead ends into Wharf 2. The bench marks are in the
vicinity of Municipal Wharf NO 2. The tide gauge is in the SE corner of
Wholesale Fish Bullding in a small room with electrical panels at the seaward
end of the pier.
T I D A L B E N C H M A R K S
PRIMARY BENCH MARK STAMPING: 2 1924
DESIGNATION: 941 3450 TIDAL 2
MONUMENTATION: Tidal Station disk VM#: 956
AGENCY: US Coast and Geodetic Survey
(USC&GS) IDB PID#: GU2090
SETTING CLASSIFICATION: Rock outcrop OPUS PID:
LATITUDE: 36° 36.2' N ( 36.60361) LONGITUDE: 121° 53.6' W (-121.89314)
The primary bench mark is a disk set on top of a prominent rock outcrop on the
beach at the entrance to Municipal Wharf No. 1, 61 m (200 ft) NE of old custom
house, 4.27 m (14.0 ft) south of sidewalk along shop fronts, 1.83 m m (6.0 ft)
east of the roadway to Fisherman's Wharf, and 0.46 m (1.5 ft) below road level.
U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Page 2 of 9
Station ID: 9413450 PUBLICATION DATE: 10/12/2011
Name: MONTEREY, MONTEREY HARBOR
CA
NOAA Chart: 18685 Latitude: 36° 36.3' N ( 36.60500)
USGS Quad: MONTEREY Longitude: 121° 53.3' W (-121.88800)
T I D A L B E N C H M A R K S
BENCH MARK STAMPING: B 21 1919
DESIGNATION: B 21
MONUMENTATION: Bench Mark disk VM#: 957
AGENCY: US Coast and Geodetic Survey
(USC&GS) IDB PID#: GU2088
SETTING CLASSIFICATION: Concrete railing OPUS PID#:
LATITUDE: 36° 36.2' N ( 36.60350) LONGITUDE: 121° 53.6' W (-121.89375)
The bench mark is a disk set on top of a low concrete railing acting as support
for a balcony at the north end of the old custom house located SW of Fisherman's
Wharf, 1.83 m (6.0 ft) west of a 2 m (6 ft) tall antique ship's anchor, 0.91 m
(3.0 ft) east of the NW corner of the building, 0.305 m (1.0 ft) east of the
western railing support, and level with the sidewalk Alvarado Street.
BENCH MARK STAMPING: NO 3 1933 G.C.J.
DESIGNATION: 941 3450 TIDAL 3
MONUMENTATION: Bench Mark disk VM#: 958
AGENCY: US Coast and Geodetic Survey
(USC&GS) IDB PID#: GU3229
SETTING CLASSIFICATION: Concrete road OPUS PID:
LATITUDE: 36° 36.1' N ( 36.60114) LONGITUDE: 121° 53.4' W (-121.88931)
The bench mark is a disk set in the pavement in the intersection of a parking
lot access road and Figueroa Street where Figueroa Street meets Municipal Wharf
No. 2, in line with the west edge of the pier, 11.0 m (36.1 ft) northeast of
electrical vault T-192, 10.06 m (33.0 ft) west of the west side of bump rail on
the east side of the pier, 7.83 m (25.7 ft) south of a light pole #192E, and
0.06 m (0.2 ft) below road level under an access cover stamped Monument.
U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Page 3 of 9
Station ID: 9413450 PUBLICATION DATE: 10/12/2011
Name: MONTEREY, MONTEREY HARBOR
CA
NOAA Chart: 18685 Latitude: 36° 36.3' N ( 36.60500)
USGS Quad: MONTEREY Longitude: 121° 53.3' W (-121.88800)
T I D A L B E N C H M A R K S
BENCH MARK STAMPING: TIDAL BM 9 1974
DESIGNATION: 941 3450 TIDAL 9
MONUMENTATION: Tidal Station disk VM#: 959
AGENCY: National Ocean Survey (NOS) IDB PID#: GU3219
SETTING CLASSIFICATION: Concrete retaining wall OPUS PID:
LATITUDE: 36° 36.3' N ( 36.60489) LONGITUDE: 121° 53.7' W (-121.89442)
The bench mark is a disk set in the top of the center of a 0.3 m (1 ft) thick
concrete retaining wall, 177 m (580 ft) NW along the concrete walkway from
Municipal Wharf No. 1, 37 m (120 ft) NE of the NE corner of the concrete walkway
deck of the overpass crossing over Lighthouse Avenue, 5.49 m (18.0 ft) NE of and
down the slope from light pole, 4.72 m (15.5 ft) south of the north end of the
retaining wall, 2.32 m (7.6 ft) west of the centerline of sidewalk, and 0.70 m
(2.3 ft) above the sidewalk.
BENCH MARK STAMPING: 3450 K 1976
DESIGNATION: 941 3450 K TIDAL
MONUMENTATION: Bench Mark disk VM#: 960
AGENCY: National Ocean Survey (NOS) IDB PID#: GU3218
SETTING CLASSIFICATION: Bedrock OPUS PID:
LATITUDE: 36° 36.2' N ( 36.60417) LONGITUDE: 121° 53.6' W (-121.89361)
The bench mark is a disk set in the bedrock on the foremost NE corner of the
prominent outcrop 76 m (249.3 ft) north of benchmark B 21, 30 m (100 ft) west of
old Fisherman's Wharf, 4.51 m (14.8 ft) NE of the NE corner of the statue of
Santa Rosalia, and 0.91 m (3.0 ft) below the statue base level.
U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Page 4 of 9
Station ID: 9413450 PUBLICATION DATE: 10/12/2011
Name: MONTEREY, MONTEREY HARBOR
CA
NOAA Chart: 18685 Latitude: 36° 36.3' N ( 36.60500)
USGS Quad: MONTEREY Longitude: 121° 53.3' W (-121.88800)
T I D A L B E N C H M A R K S
BENCH MARK STAMPING: 3450 L 1976
DESIGNATION: 941 3450 L TIDAL
MONUMENTATION: Tidal Station disk VM#: 961
AGENCY: National Ocean Survey (NOS) IDB PID#: GU3224
SETTING CLASSIFICATION: Bedrock OPUS PID:
LATITUDE: 36° 36.4' N ( 36.60647) LONGITUDE: 121° 53.6' W (-121.89408)
The bench mark is a disk set horizontally in bedrock on the highest point east
of a wooden church cross, on the most prominent outcrop dominated by a solitary
tree, 198 m (648 ft) north of bench mark 941 3450 TIDAL 9, 11.22 m (36.8 ft)
from railing bordering east side of sidewalk, and 5 m (16 ft) west of the
solitary tree.
BENCH MARK STAMPING: 3450 M 1983
DESIGNATION: 941 3450 M TIDAL
MONUMENTATION: Bench Mark disk VM#: 962
AGENCY: National Ocean Service (NOS) IDB PID#: GU4116
SETTING CLASSIFICATION: Concrete wall OPUS PID#: GU4116
LATITUDE: 36° 36.1' N ( 36.60147) LONGITUDE: 121° 53.6' W (-121.89275)
The bench mark is a disk set at the SE end of a 0.3 m (1.0 ft) high concrete
wall supporting a steel railing along the east side of Lighthouse Avenue, 90.68
m (297.5 ft) south of a tunnel entrance, 4.5 m (14.8 ft) S of the centerline of
a bike path, 0.85 m (2.8 ft) east of the east concrete curb of Lighthouse
Avenue, and 0.10 m (0.3 ft) south of a 1.37 m (4.5 ft) high concrete post that
supports the south end of the steel railing.
U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Page 5 of 9
Station ID: 9413450 PUBLICATION DATE: 10/12/2011
Name: MONTEREY, MONTEREY HARBOR
CA
NOAA Chart: 18685 Latitude: 36° 36.3' N ( 36.60500)
USGS Quad: MONTEREY Longitude: 121° 53.3' W (-121.88800)
T I D A L B E N C H M A R K S
BENCH MARK STAMPING: 3450 N 1985
DESIGNATION: 941 3450 N TIDAL
MONUMENTATION: Tidal Station disk VM#: 963
AGENCY: National Ocean Service (NOS) IDB PID#: GU4117
SETTING CLASSIFICATION: Concrete wall OPUS PID:
LATITUDE: 36° 36.1' N ( 36.60189) LONGITUDE: 121° 53.4' W (-121.88983)
The bench mark is a disk set flush in a concrete wall bordering the west side of
the base of Municipal Wharf #2, 26 m (85 ft) north of the public telephone
booths, 8.84 m (29.0 ft) NE of an old anchor set in the mall surrounding Tony
Roma's place for ribs restaurant, 2.96 m (9.7 ft) south of a light post at the
end of the pier, 1.31 m (4.3 ft) west of a manhole cover, 0.98 m (3.2 ft) south
of parking meter #95, and 0.9 m (3.0 ft) north of the stairs leading down to the
Monterey Peninsula Yacht Club.
U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Page 6 of 9
Station ID: 9413450 PUBLICATION DATE: 10/12/2011
Name: MONTEREY, MONTEREY HARBOR
CA
NOAA Chart: 18685 Latitude: 36° 36.3' N ( 36.60500)
USGS Quad: MONTEREY Longitude: 121° 53.3' W (-121.88800)
T I D A L B E N C H M A R K S
BENCH MARK STAMPING:
DESIGNATION: 941 3450 TIDAL 6
ALIAS: 6 1973
MONUMENTATION: Metal Rod VM#: 964
AGENCY: National Ocean Survey (NOS) IDB PID#: GU3220
SETTING CLASSIFICATION: Concrete post in pavement OPUS PID:
LATITUDE: 36° 36.0' N ( 36.60022) LONGITUDE: 121° 53.4' W (-121.89019)
The bench mark is a bronze pin set in top of a concrete post in pavement at SW
corner of intersection of Figueroa Street and Del Monte Avenue, 10.00 m (32.8
ft) west of the centerline of Figueroa Street, 8.38 m (27.5 ft) south of the
centerline of Del Monte Avenue, 5.12 m (16.8 ft) NE of the NE corner of a large
Spanish-style building, and 0.3 m (1 ft) below sidewalk level. Note: Access to
the mark is through a casting in sidewalk with cover plate marked: MON and AJAX
FOUNDRY COM. S.F. CALIF.
U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Page 7 of 9
Station ID: 9413450 PUBLICATION DATE: 10/12/2011
Name: MONTEREY, MONTEREY HARBOR
CA
NOAA Chart: 18685 Latitude: 36° 36.3' N ( 36.60500)
USGS Quad: MONTEREY Longitude: 121° 53.3' W (-121.88800)
T I D A L B E N C H M A R K S
BENCH MARK STAMPING:
DESIGNATION: 941 3450 TIDAL 7
ALIAS: 7 1973
MONUMENTATION: Metal Rod VM#: 965
AGENCY: National Ocean Survey (NOS) IDB PID#: GU3221
SETTING CLASSIFICATION: Concrete post in pavement OPUS PID:
LATITUDE: 36° 35.9' N ( 36.59797) LONGITUDE: 121° 53.4' W (-121.89058)
The bench mark is a bronze pin set in top of concrete post in pavement at the SW
corner of intersection of Figueroa Street and Pearl Street, 10.12 m (33.2 ft)
west of the centerline of Figueroa Street, 6.64 m (21.8 ft) south of the
centerline of Pearl Street, and 4.51 m (14.8 ft) NE of the NE corner of a
building at 498 Peal Street, 1 m (2 ft) NE of wood utility pole No 498, and 0.27
m (0.9 ft) below sidewalk level. Note: Access to the mark is through a casting
in sidewalk with cover plate marked AJAX FOUNDRY CO.
U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Page 8 of 9
Station ID: 9413450 PUBLICATION DATE: 10/12/2011
Name: MONTEREY, MONTEREY HARBOR
CA
NOAA Chart: 18685 Latitude: 36° 36.3' N ( 36.60500)
USGS Quad: MONTEREY Longitude: 121° 53.3' W (-121.88800)
T I D A L D A T U M S
Tidal datums at MONTEREY, MONTEREY HARBOR 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 (01/27/1983) = 2.401
MEAN HIGHER HIGH WATER MHHW = 1.626
MEAN HIGH WATER MHW = 1.412
MEAN TIDE LEVEL MTL = 0.873
MEAN SEA LEVEL MSL = 0.862
MEAN LOW WATER MLW = 0.333
MEAN LOWER LOW WATER MLLW = 0.000
North American Vertical Datum NAVD88 = -0.043
LOWEST OBSERVED WATER LEVEL (01/11/2009) = -0.730
North American Vertical Datum (NAVD88)
Bench Mark Elevation Information In METERS above:
Stamping or Designation MLLW MHW
2 1924 4.638 3.226
B 21 1919 6.578 5.166
NO 3 1933 G.C.J. 3.682 2.270
TIDAL BM 9 1974 7.617 6.205
3450 K 1976 5.373 3.961
3450 L 1976 6.125 4.713
3450 M 1983 3.518 2.106
3450 N 1985 4.516 3.104
941 3450 TIDAL 6 3.244 1.832
941 3450 TIDAL 7 5.082 3.670
U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Page 9 of 9
Station ID: 9413450 PUBLICATION DATE: 10/12/2011
Name: MONTEREY, MONTEREY HARBOR
CA
NOAA Chart: 18685 Latitude: 36° 36.3' N ( 36.60500)
USGS Quad: MONTEREY Longitude: 121° 53.3' W (-121.88800)
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.