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Details for Benchmark: DU1572

N 33° 14.783 W 111° 37.117 (NAD 83)

Altitude: 1413.9

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

Location:
In MARICOPA county, AZ View Original Datasheet
Designation:
R 364
Marker Type:
bench mark disk
Setting:
set into the top of a round concrete monument
Stability:
May hold, but of type commonly subject to surface motion.

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Found in good shape, as described.

[Photos:]
photoDU1572
photoDU1572 Wide

Found in good shape as described at 33 14.842 111 37.211

[Photos:]
photoR 364
photowith gps
photolooking NE

Found it in good shape..

[Photos:]
photoBenchmarks 8-6 001
DU1572

Found in good condition. Rittenhouse road has been re-worked. The benchmark is now about 50 yards east of Rittenhouse. The witness post has seen better days...

[Photos:]
photoR364 & GPSr
photoR364 & Witness post
photoLooking NNW
You can park by the office buildings on the left. The abandoned road bed of old Rittenhouse Rd is in the foreground in front of those buildings. The new road is out of the picture on the left.

Found it.

[Photos:]
photoR 364 - DU1572
photoR 364 - DU1572

Recovered as described.
GPS (HH2) co-ordinates N33º14.832' W111º37.210'.

[This entry was edited by AZcachemeister on Saturday, August 01, 2009 at 6:38:12 AM.]

[Photos:]
photoR 364 / DU1572
photoR 364 / DU1572
The mark, and the Superstition Mountains in the distance.

Documented History (by the NGS)

Unknown by (MONUMENTED)
01/10/1992 by NGS (GOOD)
DESCRIBED BY NATIONAL GEODETIC SURVEY 1992 0.2 KM (0.10 MI) NORTHERLY ALONG ELLSWORTH ROAD FROM THE POST OFFICE IN QUEEN CREEK, THENCE 1.2 KM (0.75 MI) EASTERLY ALONG OCOTILLO ROAD, THENCE 0.2 KM (0.10 MI) SOUTHEASTERLY ALONG THE SOUTHERN PACIFIC RAILROAD, 31.3 M (102.7 FT) NORTHEAST OF AND LEVEL WITH THE CENTER OF RITTENHOUSE ROAD, 26.2 M (86.0 FT) SOUTHEAST OF A UTILITY POLE, 9.1 M (29.9 FT) SOUTHWEST OF THE NEAR RAIL, 0.4 M (1.3 FT) NORTHWEST OF A WITNESS POST, AND THE MONUMENT IS FLUSH WITH THE GROUND SURFACE.

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 November 1993.
  • 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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