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Details for Benchmark: DU1331

N 33° 27.067 W 111° 41.067 (NAD 83)

Altitude: 1519.49

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

Location:
In MARICOPA county, AZ View Original Datasheet
Designation:
A 474
Marker Type:
metal rod
Setting:
a metal rod driven into the ground
Stability:
Probably hold position/elevation well.

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Recovered in good condition at N 33° 27.069 W 111° 41.070.

This entry was edited by shorbird on Thursday, 28 April 2011 at 16:56:36 UTC.

[Photos:]
photoDU1331(A 474) - Mesa AZ
photoDU1331 - Eye level
photoDU1331 - Looking W from mark

Found it in good shape.

[Photos:]
photoDU1313
photoDU1313

Recovered

[Photos:]
photogarbage in the area

Found in good shape, as described, though had to remove a couple inches of dirt to gain access.

[Photos:]
photoDU1331
photoDU1331 Closeup
photoDU1331 Closed
photoDU1331 w/WP
Facing west

Found the nearby marker, and what looked like the rod stuck in the dirt by it. Didn't see anything like AZcachemeister posted, but I shall look again!

Recovered as described, in good condition. GPS (HH2) co-ordinates N33º27.069' W111º41.071'.

[This entry was edited by AZcachemeister on Tuesday, October 13, 2009 at 5:28:14 AM.]

[Photos:]
photoA 474 / DU1331
A close-up of the mark.
N 33° 27.069 W 111° 41.070

There is new construction in this area, sign is there, but marker has been dug up (see photo). Hopefully this one will be replaced.

[Photos:]
photosign

Very easy find. Spotted this one from 50 feet away thanks to witness post. Wlaked closer to verify it was really there-it was.

Documented History (by the NGS)

01/01/1981 by NGS (MONUMENTED)
DESCRIBED BY NATIONAL GEODETIC SURVEY 1981 5.6 KM (3.5 MI) NE FROM BUCKHORN. THE MARK IS 0.7 M BELOW BUSH HIGHWAY. 1.6 KILOMETERS (1.0 MILE) EAST ALONG U.S. HIGHWAY 60, 70, 80 AND 89 FROM THE POST OFFICE AT BUCKHORN, THENCE 4.0 KILOMETERS (2.5 MILES) NORTH ALONG THE BUSH HIGHWAY, AT THE SOUTHWEST CORNER OF THE INTERSECTION OF MCKELLIPS ROAD, 32.0 METERS (105.0 FEET) WEST OF THE CENTERLINE OF BUSH HIGHWAY, 62.6 METERS (205.5 FEET) SOUTH OF THE CENTERLINE OF MCKELLIPS ROAD, 49.4 METERS (162.0 FEET) EAST OF THE SOUTHEAST CORNER OF A 100 X 150 FT. BUILDING HOUSING A GROCERY STORE, AND 5.7 METERS (18.7 FEET) SOUTHWEST OF THE WEST LEG OF A 10 X 20 FT. BULLBOARD SIGN. NOTE MARK WAS DRIVEN TO REFUSAL AT A DEPTH OF 1 METER (3.5 FEET). THE MARK IS 0.6 METERS W FROM A WITNESS POST.
01/20/1992 by NGS (GOOD)
RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1992 14.5 KM (9.00 MI) EASTERLY ALONG U.S. HIGHWAY 60 (MAIN STREET) FROM THE JUNCTION OF STATE HIGHWAY 87 (COUNTRY CLUB DRIVE) IN MESA, THENCE 3.9 KM (2.40 MI) NORTHERLY ALONG NORTH POWERS ROAD, A METAL ROD DRIVEN 1.0 METER (3.3 FEET) AND FLUSH WITH THE GROUND, 62.7 M (205.7 FT) SOUTH OF THE CENTERLINE OF KELLIPS ROAD, 49.5 M (162.4 FT) EAST OF THE SOUTHEAST CORNER OF SUN RANCH FOOD STORE, 31.8 M (104.3 FT) WEST OF THE ROAD CENTERLINE, 5.7 M (18.7 FT) SOUTHWEST OF THE WEST LEG OF A BILLBOARD, 1.6 M (5.2 FT) EAST OF A UTILITY POLE WITH 2 GUY CABLES, 0.6 M (2.0 FT) WEST OF A WITNESS POST, AND 0.3 M (1.0 FT) BELOW THE LEVEL OF THE ROADS.

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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