AW0637 - "G 460 RESET" bench mark disk - Galveston Island, TX
Posted by: Groundspeak Premium Member Raven
N 29° 08.613 W 095° 02.225
15R E 301840 N 3225605
This benchmark is located on the north side of FM-3005 (San Luis Pass Rd), about 1/4mi Northwest of the road's intersection with San Jacinto Dr (West Beach), on Galveston Island, Texas.
Waymark Code: WMWTTR
Location: Texas, United States
Date Posted: 10/13/2017
Published By:Groundspeak Premium Member Ernmark
Views: 1

As described by the NGS back in 1978 (although already monumented by the CGS in 1955):

"THE STATION IS A STANDARD US COAST AND GEODETIC SURVEY BENCH MARK DISK STAMPED---G 460 RESET 1955---, SET INTO THE TOP OF A SQUARE CONCRETE MONUMENT 12 INCHES ON A SIDE FLUSH WITH THE GROUND. IT IS 61 FEET NORTHWEST FROM THE CENTERLINE OF THE GALVESTON COUNTY ROAD, 28 FEET NORTHEAST FROM A POWER POLE, 2 FEET NORTHWEST FROM A WOODEN WITNESS POST, AND 1.8 FEET NORTHWEST FROM A WIRE FENCE. "

The NGS description is still reasonably accurate and should definitely assist future seekers in finding this benchmark, but a few corrections might be in order:
(1) the wire fence is no longer there.
(2) The wooden witness post is actually a carsonite (fiberglass) witness post, and is now flush with the station (not 2 feet away).

More importantly, the NGS' currently posted coordinates ("N 29 08 36.69837 W 095 02 13.52287", or "N 29° 08.612 W 095° 02.225") are 14 feet off from my observations, as measured within 10' accuracy and 10+ reading averages. A previous benchmarker had it at "N 29° 08.614 W 095° 02.225", and I had it at "N 29° 08.613 W 095° 02.225"... both our measurements are more in line with the "28 feet from a power pole" and "61 feet from the road's centerline" description, which the NGS' measurements are not.

The station was recovered in 'decent' condition: it is showing some signs of wear, but still legible.

---

Below are some additional facts, per the NGS database (with some editing for length): (visit link)

AW0637 ***********************************************************************
AW0637 DESIGNATION - G 460 RESET
AW0637 PID - AW0637
AW0637 STATE/COUNTY- TX/GALVESTON
AW0637 COUNTRY - US
AW0637 USGS QUAD - SEA ISLE (1974)
AW0637
AW0637 *CURRENT SURVEY CONTROL
AW0637 ______________________________________________________________________
AW0637* NAD 83(1993) POSITION- 29 08 36.69837(N) 095 02 13.52287(W) ADJUSTED
AW0637* NAVD 88 ORTHO HEIGHT - 2.667 (meters) 8.75 (feet) ADJUSTED
AW0637 ______________________________________________________________________
AW0637
AW0637_MARKER: DB = BENCH MARK DISK
AW0637_SETTING: 7 = SET IN TOP OF CONCRETE MONUMENT
AW0637_STAMPING: G 460 RESET 1955
AW0637_MARK LOGO: CGS
AW0637_PROJECTION: RECESSED 15 CENTIMETERS
AW0637_MAGNETIC: N = NO MAGNETIC MATERIAL
AW0637_STABILITY: C = MAY HOLD, BUT OF TYPE COMMONLY SUBJECT TO
AW0637+STABILITY: SURFACE MOTION
AW0637_SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR
AW0637+SATELLITE: SATELLITE OBSERVATIONS - November 07, 2013
AW0637
AW0637 HISTORY - Date Condition Report By
AW0637 HISTORY - 1978 MONUMENTED NGS
AW0637 HISTORY - 1964 GOOD CGS
AW0637 HISTORY - 1971 GOOD NGS
AW0637 HISTORY - 1978 GOOD NGS
AW0637 HISTORY - 1979 GOOD NOS
AW0637 HISTORY - 1982 GOOD NOS
AW0637 HISTORY - 1987 GOOD USPSQD
AW0637 HISTORY - 1987 GOOD USPSQD
AW0637 HISTORY - 1987 GOOD NGS
AW0637 HISTORY - 1988 GOOD USPSQD
AW0637 HISTORY - 1988 GOOD USPSQD
AW0637 HISTORY - 1988 GOOD USPSQD
AW0637 HISTORY - 1990 GOOD USPSQD
AW0637 HISTORY - 19910518 GOOD USPSQD
AW0637 HISTORY - 19940915 GOOD USPSQD
AW0637 HISTORY - 20031125 GOOD USPSQD
AW0637 HISTORY - 20041213 GOOD USPSQD
AW0637 HISTORY - 20051218 GOOD USPSQD
AW0637 HISTORY - 20131107 GOOD GEOCAC
Condition: Mark found in good condition

Designation: G 460 RESET (or "G 460 RESET 1955", if one includes the year stamped as well)

Benchmark Agency: U.S. Coast & Geodetic Survey

Monumentation type: BENCH MARK (or B.M.) Disk

County: Galveston County

USGS 7.5' Topographic Quadrangle Name (optional): Sea Isle

Find type: Coordinates and/or to-reach information from the NGS database (or Geocaching's copy of it) were used

Web address of this benchmark's datasheet (optional): [Web Link]

NGS PID: AW0637

Benchmark Agency (if other): Not listed

Monumentation type (if other): Not listed

Special category (optional): Not listed

Special Category (if other): Not listed

Local database's URL (optional): Not listed

Visit Instructions:
  1. A closeup photo of the mark taken by you is required.
  2. A 'distant' photo including the mark in the view is highly recommended. Include the compass direction you faced when you took the picture.
Search for...
Geocaching.com Google Map
Google Maps
MapQuest
Bing Maps
Nearest Waymarks
Nearest U.S. Benchmarks
Nearest Geocaches
Create a scavenger hunt using this waymark as the center point
Recent Visits/Logs:
Date Logged Log User Rating  
Raven visited AW0637 - "G 460 RESET" bench mark disk - Galveston Island, TX 09/28/2017 Raven visited it