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Details for Benchmark: AW5447

N 29° 48.867 W 095° 38.700 (NAD 83)

Altitude: 98.51

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

Location:
In HARRIS county, TX View Original Datasheet
Designation:
Q 1499
Marker Type:
metal rod
Setting:
stainless steel rod
Stability:
Probably hold position/elevation well.

Must Read!

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Old Lefty and I thought we would see if we could find this while out placing a few caches in the area. We did have to dig down to it again. With all the rain we have had the ground was soft enough.

N 29° 48.869 W 095° 38.709

If you get there soon, you won't have to dig it out like I did.

Coordinates and pictures accompany

[Photos:]
photoThe Mark
photoWide View
photoFrom Above
photoInside

Seen this before, but stopped to take a few pictures on the way home.

[Photos:]
photoAW5447
photoAW5447 area

Grabbed this benchmark hunting for a cache.

Found this one today with Criffree - our first! Uncovered the benchmark - will post a few pictures.

TFTB!

FamilieRyan

[Photos:]
photoBenchmark 01499
photoBenchmark 01499
photoBenchmark 01499 2

Found on a cold grey wet day. There was a abondonded dog there that dearly wanted to be taken home. I felt bad as I couldn't do so.
I've been by here many times and never knew a benchmark was here! Finally stopped by to log it!

[Photos:]
photoThe wet benchmark
Cold, grey and wet day

Found easily just one step from the car. I will post my photographs when I get back to the UK.

[Photos:]
photoAW5447.JPG

Recovered as described in good condition.

[Photos:]
photoAW5447
photoAW5447 setting

Found after some rain, under about 6" of water!

N 29° 48.868 W 095° 38.708

Recovered in good condition.

[Photos:]
photoAW5447
Addicks, Texas Near corner of Hwy 6 North and Patterson Road.

Documented History (by the NGS)

01/01/1986 by NGS (MONUMENTED)
DESCRIBED BY NATIONAL GEODETIC SURVEY 1986 3.3 KM (2.05 MI) NORTH FROM ADDICKS. 3.3 KM (2.05 MI) NORTHERLY ALONG STATE HIGHWAY 6 FROM ITS JUNCTION WITH U.S. HIGHWAY 90 IN ADDICKS, 0.1 KM (0.05 MI) NORTH OF PATTERSON ROAD, 30.8 M (101.0 FT) EAST OF THE CENTERLINE OF THE NORTH BOUND LANES OF THE HIGHWAY, 26.2 M (86.0 FT) SOUTH OF A FENCE CORNER, AND 3.7 M (12.1 FT) NORTH OF THE CENTER OF A GATE AND ENTRANCE TO A CEMETARY. NOTE--ACCESS TO DATUM POINT IS HAD THROUGH A 5-INCH LOGO CAP. THE MARK IS 0.3 METERS W FROM A WITNESS POST AND FENCE THE MARK IS ABOVE LEVEL WITH THE HIGHWAY.

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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