AY1566 - "G 1308" vertical control mark - New Braunfels, TX
Posted by: Groundspeak Premium Member Raven
N 29° 42.203 W 098° 07.494
14R E 584652 N 3286238
This benchmark is located by the south entrance of the Comal County Courthouse in New Braunfels, Texas.
Waymark Code: WMMJJT
Location: Texas, United States
Date Posted: 09/28/2014
Published By:Groundspeak Premium Member Ernmark
Views: 9

As described by the National Geodetic Survey in 1980:

"IN NEW BRAUNFELS, AT THE INTERSECTION OF NORTH SEGUIN STREET AND EAST SAN ANTONIO STREET, ON THE TOP CENTER OF THE SOUTHEAST STONE STEP AT THE SOUTH ENTRANCE OF THE COMAL COUNTY COURTHOUSE (BUILT IN 1898), 11.9 METERS (39.0 FT) NORTH OF THE NORTH CURB OF SEGUIN STREET, 10.6 METERS (34.8 FT) WEST OF THE WEST CURB OF SAN ANTONIO STREET. THE MARK IS 1.2 M ABOVE THE SIDEWALK."

The NGS description is pretty accurate and should definitely assist future seekers in finding this benchmark -- alternatively, one can use the gallery images (including one where the benchmark has been "highlighted" with a pink oval for ease of reference).

The NGS' 1980 coordinates, however, are pretty well off (as is to be expected, it happens all the time with older benchmarks). The NGS reports it at "N 29 42.183 W 098 07.483" which points to the center of a nearby plaza across the street, not the benchmark in question. The actual coords -- as measured within 10' accuracy and 20+ reading averages -- are "N 29 42.203 W 98 07.494".

Also, please note that the NGS reports this benchmark as a "Bench Mark Disk", when it is actually a "Vertical Control Mark" (as written on the actual disk).

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

AY1566 ***********************************************************************
AY1566 DESIGNATION - G 1308
AY1566 PID - AY1566
AY1566 STATE/COUNTY- TX/COMAL
AY1566 COUNTRY - US
AY1566 USGS QUAD - NEW BRAUNFELS EAST (1994)
AY1566
AY1566 *CURRENT SURVEY CONTROL
AY1566 ______________________________________________________________________
AY1566* NAD 83(1986) POSITION- 29 42 10.8 (N) 098 07 28.7 (W) HD_HELD2

AY1566_MARKER: DB = BENCH MARK DISK
AY1566_SETTING: 35 = SET IN A MAT FOUNDATION OR CONCRETE SLAB OTHER THAN
AY1566+WITH SETTING: PAVEMENT
AY1566_SP_SET: BUILDING STEP BALUSTRADE
AY1566_STAMPING: G 1308 1980
AY1566_MARK LOGO: NGS
AY1566_STABILITY: B = PROBABLY HOLD POSITION/ELEVATION WELL
AY1566_SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR
AY1566+SATELLITE: SATELLITE OBSERVATIONS - October 30, 2010
AY1566
AY1566 HISTORY - Date Condition Report By
AY1566 HISTORY - 1980 MONUMENTED NGS
AY1566 HISTORY - 1987 GOOD USPSQD
AY1566 HISTORY - 1989 GOOD USPSQD
AY1566 HISTORY - 19901020 POOR USPSQD
AY1566 HISTORY - 19930808 GOOD USPSQD
AY1566 HISTORY - 19990925 GOOD USPSQD
AY1566 HISTORY - 20030517 POOR USPSQD
AY1566 HISTORY - 20060719 POOR USPSQD
AY1566 HISTORY - 20101030 GOOD GEOCAC
Condition: Mark found in good condition

Designation: G 1308

Benchmark Agency: National Geodetic Survey

Monumentation type: Vertical Control Mark

County: New Braunfels, Comal county (Texas)

USGS 7.5' Topographic Quadrangle Name (optional): NEW BRAUNFELS EAST (1994)

Find type: Found by luck/skill/knowledge

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

NGS PID: AY1566

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.
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Recent Visits/Logs:
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Beetlebub visited AY1566 - "G 1308" vertical control mark - New Braunfels, TX 05/30/2017 Beetlebub visited it
jhuoni visited AY1566 - "G 1308" vertical control mark - New Braunfels, TX 10/12/2015 jhuoni visited it
Raven visited AY1566 - "G 1308" vertical control mark - New Braunfels, TX 08/16/2014 Raven visited it

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