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Details for Benchmark: AW4730

N 29° 34.883 W 095° 45.617 (NAD 83)

Altitude: 97.98

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

Location:
In FORT BEND county, TX View Original Datasheet
Designation:
B 1212
Marker Type:
bench mark disk
Setting:
footings/foundation walls of small/medium structures
Stability:
May hold, but of type commonly subject to surface motion.

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N 29° 34.903 W 095° 45.706

N 29° 34.903 W 95° 45.706

Recovered in good condition, posting updated coordinates (and several pictures).

[Photos:]
photoAW4730 - B 1212 - 1
photoAW4730 - B 1212 - 2
photoAW4730 - B 1212 - 3

It's a WAYMARK now.

[Photos:]
photo
N 29° 34.902 W 095° 45.705

Found disk in good condition.

[Photos:]
photoAW4730

Saw this benchmark while caching in the area.

[Photos:]
photoAW4730

Found near the entrance doors to the courthouse. Discovered while geocaching in the area. Lots of history here. Cool rail bridge over the Brazos River, several benchmarks in the city, and a cemetery with some historic grave sites.

[Photos:]
photoAW4730 location
photoAW4730 close up

Seen it

[Photos:]
photoBenchmark AW4730

Friendly folks let me know that this side of the building is not an entrance. Thanks, I'm just taking pictures!

[Photos:]
photodisk
photodoor
photoTen Commandments
"Law" on the back of the Lamar statue

Photo is dark but this is it.

[Photos:]
photoAW4730

Found on a nice trip through this historic town

[Photos:]
photoLoc of AW4730 B 1212, Richmond TX
photoLoc of AW4730 B 1212, Richmond TX

Found this one today, in fine shape. My pic didn't turn out. But its there!

Found just where it was supposed to be and in good condition.

[Photos:]
photodisk on Fort Bend County Courthouse

Recovered as described in good condition.

[This entry was edited by Doc Geo on Monday, June 04, 2007 at 12:47:48 PM.]

[Photos:]
photoAW4730
photoAW4730 setting

2:40PM This bench mark disk, AW4730 (B 1212) is found at the front (north) entrance of the Fort Bend County, TX Court House in Richmond,TX. My GPSr indicated that I was 491 ft. away to the east as I stood by the disk. This bench mark is 2.56 miles from home in Rosenberg, TX at a bearing of 4 by my GPSr.

[Photos:]
photoAW4730 (B 1212)
photoFort Bend County, TX Court House Historical Marker
photoMcFarlane House (Built 1883) north across Jackson Street from Court House
photoFort Bend County, TX Court House (Built 1909)
photoSt Johns United Methodist Church (built 1922) north across Jackson Street from Court House
photoSt Johns United Methodist Church Historical Marker
photoNorth West Corner of Fort Bend County, TX Court House
photoMcFarlane House Historical Marker

Documented History (by the NGS)

01/01/1973 by NGS (MONUMENTED)
DESCRIBED BY NATIONAL GEODETIC SURVEY 1973 IN RICHMOND. AT RICHMOND, AT THE SOUTHWEST CORNER OF THE JUNCTION OF U.S. HIGHWAY 90 ALT. (JACKSON STREET) AND SOUTH FOURTH STREET, AT THE NORTH ENTRANCE TO THE FORT BEND COUNTY COURTHOUSE, SET VERTICALLY IN THE NORTH BRICK WALL OF THE ENTRANCE WAY, 0.5 FOOT WEST OF THE WEST EDGE OF THE WEST ONE OF THREE ENTRANCE DOORS, 7.0 FEET SOUTH OF THE NORTH EDGE OF THE TOP STEP OF THE ENTRANCE, 127 FEET WEST OF THE WEST CURB OF SOUTH FOURTH STREET, 85 FEET SOUTH OF THE SOUTH CURB OF JACKSON STREET, ABOUT 1 1/2 FEET HIGHER THAN THE PORCH DECK, AND 4.0 FEET ABOVE THE SIDEWALK.
01/01/1987 by USPSQD (GOOD)
RECOVERY NOTE BY US POWER SQUADRON 1987 (LT) RECOVERED IN GOOD CONDITION.
01/01/1987 by USPSQD (GOOD)
RECOVERY NOTE BY US POWER SQUADRON 1987 (TT) RECOVERED IN GOOD CONDITION.
01/01/1987 by NGS (GOOD)
RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1987 RECOVERED IN GOOD CONDITION.
01/01/1990 by USPSQD (GOOD)
RECOVERY NOTE BY US POWER SQUADRON 1990 (MVM) RECOVERED IN GOOD CONDITION.
01/01/1990 by USPSQD (GOOD)
RECOVERY NOTE BY US POWER SQUADRON 1990 (DB) RECOVERED IN GOOD CONDITION.
12/04/1993 by USPSQD (GOOD)
RECOVERY NOTE BY US POWER SQUADRON 1993 RECOVERED IN GOOD CONDITION.

Control Text

  • The horizontal coordinates were scaled from a topographic map and have an estimated accuracy of +/- 6 seconds.
  • The orthometric height was determined by differential leveling and adjusted by the National Geodetic Survey in June 1991.
  • 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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