As described by the NGS in 1973 (although already monumented by the CGS back in 1963):
"[...] ABOUT 0.75 MILE SOUTH ALONG SOUTH MAIN ST. FROM THE INTERSECTION OF WEST TEXAS AVE. IN BAYTOWN, AT THE POINT WHERE SOUTH MAIN ST. BECOMES WEST MAIN ST., ABOUT 81 FEET SOUTHWEST OF THE CENTER OF THE INTERSECTION WITH WEST MAIN ST., 31 FEET NORTHWEST OF THE CENTER LINE OF WEST MAIN ST., SET IN THE TOP OF AND CENTER OF THE NORTHWEST HEADWALL OF A 6 X 4 FT. CONCRETE BOX CULVERT, AND 1 FOOT ABOVE THE LEVEL OF THE ROAD."
The NGS description is still very accurate -- and so are the distance estimates. The NGS' currently posted coordinates ("N 29 43 21.30 W 094 58 21.18") were more or less in line with mine: my measurements were "N 29° 43.355 W 94° 58.354" with 5-10' accuracy.
The station was recovered in good condition.
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Below are some basic additional facts, per the NGS database (with some editing for length): (
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AW1531 ***********************************************************************
AW1531 DESIGNATION - U 1183
AW1531 PID - AW1531
AW1531 STATE/COUNTY- TX/HARRIS
AW1531 COUNTRY - US
AW1531 USGS QUAD - MORGANS POINT (2019)
AW1531
AW1531 *CURRENT SURVEY CONTROL
AW1531 ______________________________________________________________________
AW1531* NAD 83(1986) POSITION- 29 43 21.30 (N) 094 58 21.18 (W) HD_HELD1
AW1531* NAVD 88 ORTHO HEIGHT - 6.940 (meters) 22.77 (feet) ADJUSTED
AW1531 **This station is in an area of suspected vertical motion (see below).
AW1531 ______________________________________________________________________
AW1531 GEOID HEIGHT - -27.228 (meters) GEOID18
AW1531 DYNAMIC HEIGHT - 6.930 (meters) 22.74 (feet) COMP
AW1531 MODELED GRAVITY - 979,285.3 (mgal) NAVD 88
AW1531
AW1531_MARKER: DB = BENCH MARK DISK
AW1531_SETTING: 32 = SET IN A RETAINING WALL OR CONCRETE LEDGE
AW1531_SP_SET: HEADWALL
AW1531_STAMPING: U 1183 1963
AW1531_MARK LOGO: CGS
AW1531_STABILITY: C = MAY HOLD, BUT OF TYPE COMMONLY SUBJECT TO
AW1531+STABILITY: SURFACE MOTION
AW1531_SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR
AW1531+SATELLITE: SATELLITE OBSERVATIONS - January 16, 2015
AW1531
AW1531 HISTORY - Date Condition Report By
AW1531 HISTORY - 1963 MONUMENTED CGS
AW1531 HISTORY - 1973 GOOD NGS
AW1531 HISTORY - 1978 GOOD NGS
AW1531 HISTORY - 1987 GOOD USPSQD
AW1531 HISTORY - 1987 GOOD NGS
AW1531 HISTORY - 1989 GOOD USPSQD
AW1531 HISTORY - 1989 GOOD USPSQD
AW1531 HISTORY - 1990 GOOD USPSQD
AW1531 HISTORY - 20010331 MARK NOT FOUND NGS
AW1531 HISTORY - 20040223 MARK NOT FOUND USPSQD
AW1531 HISTORY - 20150116 GOOD GEOCAC