AW5615 - "HGCSD 7" metal rod - Atascocita, TX
Posted by: Groundspeak Premium Member Raven
N 29° 59.919 W 095° 11.658
15R E 288335 N 3320662
This benchmark is located near one of the entrances to the Lake Country Plaza shopping strip on FM-1960 in Atascocita, Texas.
Waymark Code: WMXJR6
Location: Texas, United States
Date Posted: 01/20/2018
Published By:Groundspeak Premium Member Ernmark
Views: 2

As described by the NGS in 1987:

"THE STATION IS A PUNCH MARK IN THE TOP OF A STAINLESS STEEL ROD DRIVEN INTO THE GROUND AND INSIDE A 1-INCH PVC PIPE THAT IS 20 FEET LONG FILLED WITH GREASE THAT IS ENCASED IN A 5-INCH PVC PIPE WITH A LOGO CAP STAMPED---HGCSD 7 1986---, THE ROD IS RECESSED 7 CM BELOW THE GROUND. LOCATED 16.3 METERS (53.6 FT) WEST-SOUTHWEST FROM A FIRE HYDRANT, 13.6 METERS (44.5 FT) SOUTH FROM THE CENTERLINE OF THE EASTBOUND LANE OF [FM 1960], 9.3 METERS (30.5 FT) NORTH FROM THE NORTH CURB OF THE PARKING LOT AND 4.5 METERS (14.8 FT) EAST FROM THE EAST CURB OF THE ENTRANCE TO THE SHOPPING PLAZA."

An amendment by the NOS in 1992 is even more helpful:

"0.53 M (1.74 FT) SOUTHEAST OF THE NORTHEAST CORNER OF THE CONCRETE FOUNDATION FOR A SIGN, 0.27 M (0.89 FT) EAST OF THE EAST FACE OF THE FOUNDATION

The NGS and NOS descriptions are quite accurate (save for the fact that its stamping was "HGCSD 7 1987", not "HGCSD 7 1986"): the station is located about 300 feet west of the SW corner of FM-1960 and Timber Forest Drive, inside a flower bed and just a few feet east of a small sign/marquee within the "Lake Country Plaza" shopping strip parking area.

The NGS' currently posted coordinates ("N 29 59 55.11593 W 095 11 39.46068", or "N29° 59.919 W95° 11.658") were exactly in line with my observations, as measured within 10' accuracy and 10+ reading averages.

The station was recovered in decent condition, although its logo cap is missing.

---

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

AW5615 ***********************************************************************
AW5615 HT_MOD - This is a Height Modernization Survey Station.
AW5615 DESIGNATION - HGCSD 7
AW5615 PID - AW5615
AW5615 STATE/COUNTY- TX/HARRIS
AW5615 COUNTRY - US
AW5615 USGS QUAD - HARMASTON (1982)
AW5615
AW5615 *CURRENT SURVEY CONTROL
AW5615 ______________________________________________________________________
AW5615* NAD 83(2011) POSITION- 29 59 55.11593(N) 095 11 39.46068(W) ADJUSTED
AW5615* NAD 83(2011) ELLIP HT- -5.980 (meters) (06/27/12) ADJUSTED
AW5615* NAD 83(2011) EPOCH - 2010.00
AW5615* NAVD 88 ORTHO HEIGHT - 21.41 (meters) 70.2 (feet) GPS OBS
AW5615 ______________________________________________________________________
AW5615
AW5615_MARKER: F = FLANGE-ENCASED ROD
AW5615_SETTING: 59 = STAINLESS STEEL ROD IN SLEEVE (10 FT.+)
AW5615_STAMPING: HGCSD 7 1987
AW5615_MARK LOGO: NGS
AW5615_PROJECTION: RECESSED 7 CENTIMETERS
AW5615_MAGNETIC: I = MARKER IS A STEEL ROD
AW5615_STABILITY: A = MOST RELIABLE AND EXPECTED TO HOLD
AW5615+STABILITY: POSITION/ELEVATION WELL
AW5615_SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR
AW5615+SATELLITE: SATELLITE OBSERVATIONS - November 23, 1994
AW5615_ROD/PIPE-DEPTH: 18.0 meters
AW5615_SLEEVE-DEPTH : 6.1 meters
AW5615
AW5615 HISTORY - Date Condition Report By
AW5615 HISTORY - 1987 MONUMENTED NGS
AW5615 HISTORY - 1987 GOOD NGS
AW5615 HISTORY - 19921026 GOOD NOS
AW5615 HISTORY - 19941123 GOOD HGCSD
Condition: Mark found in good condition

Designation: HGCSD 7 (or "HGCSD 7 1987", if one goes by its full stamping)

Benchmark Agency: National Geodetic Survey

Monumentation type: Metal Rod (under a hinged cover)

County: Harris County

USGS 7.5' Topographic Quadrangle Name (optional): Harmaston

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: AW5615

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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Raven visited AW5615 - "HGCSD 7" metal rod - Atascocita, TX 11/19/2017 Raven visited it