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Details for Benchmark: AW0584

N 29° 18.882 W 094° 45.849 (NAD 83)

Altitude: 14.19

Coordinates may not be exact. Altitude is ADJUSTED and location is ADJUSTED. (more info)

Location:
In GALVESTON county, TX View Original Datasheet
Designation:
SAN RM 2
Marker Type:
reference mark disk
Setting:
pavements (street, sidewalk, curb, apron, etc.)
Stability:
Mark of questionable or unknown stability.

Must Read!

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Saw this benchmark while caching in the area.

[Photos:]
photoAW0584

Out on a bike ride caching and snagging benchmarks along the way.

Found this at lunchtime.

[Photos:]
photoRef Mark disk
Galveston seawall at East beach
N 29° 18.884 W 094° 45.849

Coordinates and pictures accompany

[Photos:]
photoThe Mark
photoWide View
photoFrom Above

Found it on a fun day of benchmark hunting along the length of Galveston's historic seawall.

[Photos:]
photoAW0584 San RM2, Galveston TX

Nice to have these two so close!

[Photos:]
photoSANRM2

Found in good shape.

[Photos:]
photoSAN NO2

Easy to see with the pink rings

[Photos:]
photoSan RM 2

A nice day for benchmarking along the seawall. No problem finding this one.

[Photos:]
photoAW0584 SAN No 2

Back again to look for more bench marks. A nice day for benchmarking along the seawall while I am in Galveston for the weekend. No problem finding this benchmark

Down on the seawall for new projects

Found

[Photos:]
photoAW0584

Found in good condition.

[Photos:]
photoClose up
photoLooking ENE

Documented History (by the NGS)

01/01/1933 by CGS (MONUMENTED)
01/01/1964 by NGS (GOOD)
DESCRIBED BY NATIONAL GEODETIC SURVEY 1964 2.2 MI NE FROM GALVESTON. ABOUT 2.2 MILES NORTHEAST ALONG SEA WALL BOULEVARD FROM THE MOODY CENTER AT GALVESTON, 37 FEET SOUTHEAST OF THE CENTER LINE OF THE BOULEVARD 96 1/2 FEET SOUTHEAST OF SAN 1933, 10 FEET NORTHWEST OF THE SOUTHEAST EDGE OF THE SEA WALL, AND SET IN THE CENTER OF THE TOP OF A CONCRETE SIDEWALK.
01/01/1974 by NGS (GOOD)
RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1974 RECOVERED IN GOOD CONDITION.
01/01/1978 by NGS (GOOD)
RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1978 RECOVERED IN GOOD CONDITION.
01/01/1984 by USPSQD (GOOD)
RECOVERY NOTE BY US POWER SQUADRON 1984 RECOVERED IN GOOD CONDITION.
01/01/1987 by USPSQD (GOOD)
RECOVERY NOTE BY US POWER SQUADRON 1987 (GEB) RECOVERED IN GOOD CONDITION.
01/01/1987 by USPSQD (GOOD)
RECOVERY NOTE BY US POWER SQUADRON 1987 (AS) RECOVERED IN GOOD CONDITION.
01/01/1987 by USPSQD (GOOD)
RECOVERY NOTE BY US POWER SQUADRON 1987 (GWS) RECOVERED IN GOOD CONDITION.
01/01/1987 by USPSQD (GOOD)
RECOVERY NOTE BY US POWER SQUADRON 1987 (AOM) RECOVERED IN GOOD CONDITION.
01/01/1987 by NGS (GOOD)
RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1987 RECOVERED IN GOOD CONDITION.
01/01/1988 by USPSQD (GOOD)
RECOVERY NOTE BY US POWER SQUADRON 1988 (JLD) RECOVERED IN GOOD CONDITION.
01/01/1988 by USPSQD (GOOD)
RECOVERY NOTE BY US POWER SQUADRON 1988 (NGB) RECOVERED IN GOOD CONDITION.
01/01/1988 by USPSQD (GOOD)
RECOVERY NOTE BY US POWER SQUADRON 1988 (CWT) RECOVERED IN GOOD CONDITION.
01/01/1988 by USPSQD (GOOD)
RECOVERY NOTE BY US POWER SQUADRON 1988 (GS) RECOVERED IN GOOD CONDITION.
01/01/1988 by USPSQD (GOOD)
RECOVERY NOTE BY US POWER SQUADRON 1988 (GWS) RECOVERED IN GOOD CONDITION.
01/01/1988 by USPSQD (GOOD)
RECOVERY NOTE BY US POWER SQUADRON 1988 (RNT) RECOVERED IN GOOD CONDITION.
01/01/1988 by USPSQD (GOOD)
RECOVERY NOTE BY US POWER SQUADRON 1988 (BMS) RECOVERED IN GOOD CONDITION.
01/01/1988 by USPSQD (GOOD)
RECOVERY NOTE BY US POWER SQUADRON 1988 (LGS) RECOVERED IN GOOD CONDITION.
01/01/1988 by USPSQD (GOOD)
RECOVERY NOTE BY US POWER SQUADRON 1988 (JLS) RECOVERED IN GOOD CONDITION.
01/01/1989 by USPSQD (GOOD)
RECOVERY NOTE BY US POWER SQUADRON 1989 (BJG) RECOVERED IN GOOD CONDITION.
01/01/1989 by USPSQD (GOOD)
RECOVERY NOTE BY US POWER SQUADRON 1989 (GRE) RECOVERED IN GOOD CONDITION.
01/01/1989 by USPSQD (GOOD)
RECOVERY NOTE BY US POWER SQUADRON 1989 (JDA) RECOVERED IN GOOD CONDITION.
01/01/1989 by USPSQD (GOOD)
RECOVERY NOTE BY US POWER SQUADRON 1989 (GCM) RECOVERED IN GOOD CONDITION.
01/01/1989 by USPSQD (GOOD)
RECOVERY NOTE BY US POWER SQUADRON 1989 (GDB) RECOVERED IN GOOD CONDITION.
01/01/1989 by USPSQD (GOOD)
RECOVERY NOTE BY US POWER SQUADRON 1989 (GEB) RECOVERED IN GOOD CONDITION.
01/01/1989 by USPSQD (GOOD)
RECOVERY NOTE BY US POWER SQUADRON 1989 (WJP) RECOVERED IN GOOD CONDITION.
01/01/1990 by USPSQD (GOOD)
RECOVERY NOTE BY US POWER SQUADRON 1990 (PSM) RECOVERED IN GOOD CONDITION.
09/17/1994 by USPSQD (GOOD)
RECOVERY NOTE BY US POWER SQUADRON 1994 RECOVERED IN GOOD CONDITION.
10/06/1995 by CHANCE (GOOD)
RECOVERY NOTE BY JE CHANCE AND ASSOCIATES 1995 (KAL) RECOVERED AS DESCRIBED.ADDITIONAL TIES FOLLOW. AT A BEND IN THE SEAWALL, 3.0 M (9.8 FT) NORTHWEST OF THE SOUTHEAST EDGE OF THE SEAWALL, 1.6 M (5.2 FT) SOUTHEAST OF THE SOUTHEAST EDGE OF SEAWALL BOULEVARD, 17.2 M (56.4 FT) SOUTH OF A --45-MPH-- SIGN, 45.3 M (148.6 FT) SOUTH OF REFERENCE MONUMENT SAN NO.1, 46.8 M (153.5 FT) SOUTH OF A --CAUTION DROP OFF-- SIGN, 32.7 M (107.3 FT) SOUTHWEST OF A STEEL UTILITY POLE.
12/05/1996 by NGS (GOOD)
RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1996 (GAS) 1.4 KM (0.85 MI) NORTHEASTERLY ALONG SEAWALL BOULEVARD FROM THE JUNCTION OF BROADWAY AVENUE IN GALVESTON, IN A CONCRETE SIDEWALK BETWEEN A SEAWALL AND THE BOULEVARD, 45.3 M (148.6 FT) SOUTHWEST OF SAN REFERENCE MARK 1, 17.7 M (58.1 FT) SOUTHWEST OF A BEND IN THE SEAWALL, 7.6 M (24.9 FT) SOUTHEAST OF THE BOULEVARD CENTERLINE, AND 0.3 M (1.0 FT) BELOW THE LEVEL OF THE BOULEVARD.

Control Text

  • The horizontal coordinates were established by classical geodetic methods and adjusted by the National Geodetic Survey in February 1996.
  • The orthometric height was determined by differential leveling and adjusted by the National Geodetic Survey in March 1997.
  • The Laplace correction was computed from DEFLEC99 derived deflections.
  • The geoid height was determined by GEOID99.
  • The dynamic height is computed by dividing the NAVD 88 geopotential number by the normal gravity value computed on the Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45 degrees latitude (G = 980.6199 gals.).
  • The modeled gravity was interpolated from observed gravity values.

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