U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Datums Page Page 1 of 9
Station ID: 8747766 PUBLICATION DATE: 09/18/2015
Name: WAVELAND, MISSISSIPPI SOUND
MS
NOAA Chart: 11371 Latitude: 30° 16.9' N ( 30.28170)
USGS Quad: BAY ST LOUIS Longitude: 89° 22.0' W ( -89.36670)
To reach the tidal bench marks from I-10 west, take exit 13 (Routes 43/603) to
Waveland, proceed 8.0 km (5.0 mi) to the intersection of Route 43 and US Highway
90, go straight through the intersection east on Nicholson Avenue for 2.6 km
(1.6 mi) to Beach Boulevard, then turn right on Beach Boulevard and continue 1.1
km (0.7 mi) to the Garfield Ladner Memorial Pier. The bench marks are located in
the vicinity of the pier and along Beach Boulevard. The tide gage is located
near the outer end of the pier on the SW side.
T I D A L B E N C H M A R K S
PRIMARY BENCH MARK STAMPING: 7766 B 1996
DESIGNATION: 874 7766 B
MONUMENTATION: Tidal Station disk VM#: 13298
AGENCY: National Ocean Service (NOS) IDB PID#: AH8407
SETTING CLASSIFICATION: Stainless steel rod OPUS PID:
LATITUDE: 30° 17.0' N ( 30.28330) LONGITUDE: 89° 22.1' W ( -89.36830)
The primary bench mark is located along the entrance road to the Waveland
Municipal Pier, 42.40 m (139.11 ft) SE of utility pole no. 7171, 11.60 m (38.06
ft) SE of the SW pole of the overhead entrance sign leading to the pier, 4.30 m
(14.11 ft) SW of the centerline of terrace street, and 2.01 m (6.59 ft) SE of
the curb of the parking lot entrance. The bench mark is crimped to a stainless
steel rod driven 9.8 m (32.2 ft) to refusal and encased in a 5-inch PVC pipe and
concrete kickblock.
U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Page 2 of 9
Station ID: 8747766 PUBLICATION DATE: 09/18/2015
Name: WAVELAND, MISSISSIPPI SOUND
MS
NOAA Chart: 11371 Latitude: 30° 16.9' N ( 30.28170)
USGS Quad: BAY ST LOUIS Longitude: 89° 22.0' W ( -89.36670)
T I D A L B E N C H M A R K S
BENCH MARK STAMPING: 7766 C 1996
DESIGNATION: 874 7766 C
MONUMENTATION: Tidal Station disk VM#: 13299
AGENCY: National Ocean Service (NOS) IDB PID#: AJ5823
SETTING CLASSIFICATION: Stainless steel rod OPUS PID:
LATITUDE: 30° 17.0' N ( 30.28330) LONGITUDE: 89° 22.1' W ( -89.36830)
The bench mark is located on the NW side of beach boulevard just in front of the
residence of 213 North Beach Boulevard, 11.70 m (38.39 ft) south of the SW porch
post of dwelling at 213 Beach Boulevard, 10.59 m (34.74 ft) SW of the concrete
drive leading to the swelling at 213 Beach Boulevard, 10.23 m (33.56 ft) NW of
the centerline of North Beach Boulevard, and 0.98 m (3.22 ft) SE of a power
pole. The bench mark is 6 cm (0.2 ft) below ground level, crimped to a stainless
steel rod driven 11.0 m (36.1 ft) to refusal, and encased in a 5-inch PVC pipe
and concrete kickblock.
BENCH MARK STAMPING: 7766 D 1996
DESIGNATION: 874 7766 D
MONUMENTATION: Tidal Station disk VM#: 13300
AGENCY: National Ocean Service (NOS) IDB PID#: AJ5822
SETTING CLASSIFICATION: Stainless steel rod OPUS PID:
LATITUDE: 30° 17.1' N ( 30.28500) LONGITUDE: 89° 22.0' W ( -89.36670)
The bench mark is located 29.45 m (96.62 ft) SW of the centerline of Lafite
Street, 14.65 m (48.06 ft) NE of the drive leading to the residence at 231 North
Beach Boulevard, 8.60 m (28.22 ft) NW of the centerline of North Beach
Boulevard, and 1.15 m (3.77 ft) SE of a power pole with steel witness sign. The
bench mark is 6 cm (0.2 ft) below the ground, crimped to a stainless steel rod
driven 11.0 m (36.1 ft) to refusal and encased in a 5-inch PVC pipe and concrete
kickblock.
U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Page 3 of 9
Station ID: 8747766 PUBLICATION DATE: 09/18/2015
Name: WAVELAND, MISSISSIPPI SOUND
MS
NOAA Chart: 11371 Latitude: 30° 16.9' N ( 30.28170)
USGS Quad: BAY ST LOUIS Longitude: 89° 22.0' W ( -89.36670)
T I D A L B E N C H M A R K S
BENCH MARK STAMPING: 7766 E 1996
DESIGNATION: 874 7766 E
MONUMENTATION: Tidal Station disk VM#: 13301
AGENCY: National Ocean Service (NOS) IDB PID#: DG9003
SETTING CLASSIFICATION: Concrete sea wall OPUS PID:
LATITUDE: 30° 17.2' N ( 30.28670) LONGITUDE: 89° 21.9' W ( -89.36500)
The bench mark is set flush in the concrete sea wall, 18.90 m (62.01 ft) east of
power pole NO. 402 at 399 North Beach Boulevard, 5.35 m (17.55 ft) SE of the
centerline of North Beach Boulevard, 4.07 m (13.35 ft) NW of the SE edge of the
concrete sidewalk, 1.28 m (4.20 ft) NE of the center of the road drain, and 0.24
m (0.79 ft) NW of the top of the concrete sea wall.
BENCH MARK STAMPING: V 234 1969
DESIGNATION: V 234
MONUMENTATION: Bench Mark disk VM#: 13302
AGENCY: US Coast and Geodetic Survey
(USC&GS) IDB PID#: BH0945
SETTING CLASSIFICATION: Bridge abutment OPUS PID:
LATITUDE: 30° 18.5' N ( 30.30830) LONGITUDE: 89° 19.5' W ( -89.32500)
The bench mark is a disk set on top of the SE end of the SW concrete abutment of
the railroad trestle over St. Louis Bay, at the crossing of South Beach
Boulevard and the Louisville and Nashville Railroad, 33.38 m (109.5 ft) NE of
the center of the crossing of South Beach Boulevard, 2.19 m (7.2 ft) SE of the
SE rail, and level with the track.
U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Page 4 of 9
Station ID: 8747766 PUBLICATION DATE: 09/18/2015
Name: WAVELAND, MISSISSIPPI SOUND
MS
NOAA Chart: 11371 Latitude: 30° 16.9' N ( 30.28170)
USGS Quad: BAY ST LOUIS Longitude: 89° 22.0' W ( -89.36670)
T I D A L B E N C H M A R K S
BENCH MARK STAMPING: T 190 1955
DESIGNATION: T 190
MONUMENTATION: Bench Mark disk VM#: 13303
AGENCY: US Coast and Geodetic Survey
(USC&GS) IDB PID#: BH0946
SETTING CLASSIFICATION: Building OPUS PID:
LATITUDE: 30° 18.5' N ( 30.30830) LONGITUDE: 89° 19.6' W ( -89.32670)
The bench mark is set vertically in the NE brick face of the Merchants Bank and
Trust Company, 0.16 km (0.1 mile) SW along South Beach Boulevard from the
junction of Main Street in Bay St. Louis, 36.6 m (120 ft) west of the center of
the crossing of the Louisville and Nashville Railroad and the South Beach
Boulevard, 4.9 m (16 ft) NW of the NW curb of the boulevard, 3.0 m (9.8 ft) NW
of the east corner of the building, and 0.73 m (2.4 ft) above the level of the
sidewalk.
BENCH MARK STAMPING: 20-1R 1986
DESIGNATION: 20-1R
MONUMENTATION: Survey disk VM#: 13886
AGENCY: US Army Corps of Engineers (USE) IDB PID#:
SETTING CLASSIFICATION: Concrete sidewalk/sea wall OPUS PID:
LATITUDE: 30° 17.0' N ( 30.28330) LONGITUDE: 89° 22.0' W ( -89.36670)
The bench mark is set in the concrete sidewalk/sea wall in front of the
residence at 305 North Beach Boulevard, 46.51 m (152.59 ft) SW of power pole NO.
391 with transformer, 11.00 m (36.1 ft) SE of the centerline of the driveway at
305 North Beach Boulevard, 5.24 m (17.19 ft) SE of the centerline of North Beach
Boulevard, and 0.30 m (0.98 ft) NW of the SE edge of the sidewalk.
U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Page 5 of 9
Station ID: 8747766 PUBLICATION DATE: 09/18/2015
Name: WAVELAND, MISSISSIPPI SOUND
MS
NOAA Chart: 11371 Latitude: 30° 16.9' N ( 30.28170)
USGS Quad: BAY ST LOUIS Longitude: 89° 22.0' W ( -89.36670)
T I D A L B E N C H M A R K S
BENCH MARK STAMPING: 7766 F 2000
DESIGNATION: 874 7766 F
MONUMENTATION: Flange-encased Rod VM#: 16351
AGENCY: National Ocean Service (NOS) IDB PID#:
SETTING CLASSIFICATION: Stainless steel rod in sleeve OPUS PID:
LATITUDE: 30° 17.2' N ( 30.28670) LONGITUDE: 89° 21.9' W ( -89.36500)
The bench mark is a flange-encased rod located on the NE side of the
intersection of North Beach Boulevard and Mollere Drive, 7.15 m (23.5 ft) NE of
the centerline of Mollere Drive, 7.01 m (23.0 ft) NW of the centerline of North
Beach Boulevard, and 4.45 m (14.6 ft) SSE of a power pole with street light and
transformer No. 401. The datum point is the top of a stainless steel rod driven
15.8 m (52 ft) to refusal, encased in a sleeve to a depth of 1 m (3 ft), and
encased in a 5-inch logo cap set at ground level.
BENCH MARK STAMPING: 7766 G 2002
DESIGNATION: 874 7766 G
MONUMENTATION: Tidal Station disk VM#: 16769
AGENCY: National Ocean Service (NOS) IDB PID#:
SETTING CLASSIFICATION: Concrete base OPUS PID:
LATITUDE: 30° 17.1' N ( 30.28500) LONGITUDE: 89° 22.4' W ( -89.37330)
The benchmark is set in the concrete base of Bourgeois Steffelray monument,
north of the intersection of North Beach Blvd. and Terrance Dr., 7.15 M (23.5
ft) north on Terrance Dr., 6.00 m (19.7 ft) SW of an AC concrete pad's SW face,
3.20 m (10.5 ft) west from east curb by front doors of American Legion, 2.35 m
(7.7 ft) SW from flag pole, 0.79 m (2.59 ft) NW from the NNE corner of the
American Legion monument, and 0.75 m (2.46 ft) SE from American Legion Building
foundation.
U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Page 6 of 9
Station ID: 8747766 PUBLICATION DATE: 09/18/2015
Name: WAVELAND, MISSISSIPPI SOUND
MS
NOAA Chart: 11371 Latitude: 30° 16.9' N ( 30.28170)
USGS Quad: BAY ST LOUIS Longitude: 89° 22.0' W ( -89.36670)
T I D A L B E N C H M A R K S
BENCH MARK STAMPING: 7766 H 2003
DESIGNATION: 874 7766 H TIDAL
MONUMENTATION: Tidal Station disk VM#: 17615
AGENCY: National Ocean Service (NOS) IDB PID#:
SETTING CLASSIFICATION: Concrete ramp OPUS PID:
LATITUDE: 30° 17.0' N ( 30.28330) LONGITUDE: 89° 22.0' W ( -89.36670)
The bench mark is a disk set flush on the SW corner of the concrete ramp leading
to the post office, 26.08 m (85.6 ft) E of power pole number S-227 located on
the SW side of Coleman Avenue, 11.58 m (38 ft) NE of the centerline of Coleman
Avenue, 8.14 m (26.7 ft) SE of the SWcorner of the post office, 4.43 m (14.5 ft)
W of the Post Office flag pole, and 0.43 m (1.41 ft) above ground level.
U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Page 7 of 9
Station ID: 8747766 PUBLICATION DATE: 09/18/2015
Name: WAVELAND, MISSISSIPPI SOUND
MS
NOAA Chart: 11371 Latitude: 30° 16.9' N ( 30.28170)
USGS Quad: BAY ST LOUIS Longitude: 89° 22.0' W ( -89.36670)
T I D A L D A T U M S
Tidal datums at WAVELAND, MISSISSIPPI SOUND based on:
LENGTH OF SERIES: 5 YEARS
TIME PERIOD: October 1997 - September 2002
TIDAL EPOCH: 1983-2001
CONTROL TIDE STATION: 8729840 PENSACOLA, PENSACOLA BAY
Elevations of tidal datums referred to Mean Lower Low Water (MLLW), in METERS:
HIGHEST OBSERVED WATER LEVEL (09/26/2002) = 2.403
MEAN HIGHER HIGH WATER MHHW = 0.488
MEAN HIGH WATER MHW = 0.465
MEAN TIDE LEVEL MTL = 0.246
MEAN SEA LEVEL MSL = 0.244
MEAN LOW WATER MLW = 0.027
MEAN LOWER LOW WATER MLLW = 0.000
LOWEST OBSERVED WATER LEVEL (12/31/1997) = -0.763
North American Vertical Datum (NAVD88)
Bench Mark Elevation Information In METERS above:
Stamping or Designation MLLW MHW
7766 B 1996 1.548 1.083
7766 C 1996 1.729 1.264
7766 D 1996 1.957 1.492
7766 E 1996 1.542 1.077
V 234 1969 6.267 5.802
T 190 1955 7.182 6.717
20-1R 1986 1.716 1.251
7766 F 2000 2.140 1.675
7766 G 2002 3.604 3.139
7766 H 2003 4.105 3.640
U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Page 8 of 9
Station ID: 8747766 PUBLICATION DATE: 09/18/2015
Name: WAVELAND, MISSISSIPPI SOUND
MS
NOAA Chart: 11371 Latitude: 30° 16.9' N ( 30.28170)
USGS Quad: BAY ST LOUIS Longitude: 89° 22.0' W ( -89.36670)
Foot Notes:
Bench marks 7766 F 2000, T 190 1955, and V 234 1969 are based on one
differential leveling connection and do not meet the quality control standards
of the NOS. Therefore, caution should be used when deriving elevations for
these marks.
U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Page 9 of 9
Station ID: 8747766 PUBLICATION DATE: 09/18/2015
Name: WAVELAND, MISSISSIPPI SOUND
MS
NOAA Chart: 11371 Latitude: 30° 16.9' N ( 30.28170)
USGS Quad: BAY ST LOUIS Longitude: 89° 22.0' W ( -89.36670)
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.