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Details for Benchmark: DV0295

N 33° 00.033 W 112° 28.750 (NAD 83)

Altitude: 1371.38

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

Location:
In MARICOPA county, AZ View Original Datasheet
Designation:
J 360
Marker Type:
bench mark disk
Setting:
copper-clad steel rod
Stability:
Probably hold position/elevation well.

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Found in good shape.

[Photos:]
photoDV0295
photoDV0295 w GPSr
photoDV0295 Area

Recovered as described, in good condition.

[Photos:]
photoJ 360 / DV0295
A close-up of the mark, with the GPSr.
photoJ 360 / DV0295
A close-up of the mark alone.
photoJ 360 / DV0295
A wider view, looking generally north. It appears this mark has recently been included in some aerial surveying.

Documented History (by the NGS)

01/01/1967 by CGS (MONUMENTED)
DESCRIBED BY COAST AND GEODETIC SURVEY 1967 13.15 MI W FROM MOBILE. ABOUT 13.15 MILES WEST ALONG THE SOUTHERN PACIFIC RAILROAD FROM THE NELSON ELEMENTARY SCHOOL AT MOBILE, 37 FEET NORTH OF THE NORTH RAIL OF THE MAIN TRACK, 41 FEET NORTHWEST OF THE NORTHWEST CORNER OF THE WEST ABUTMENT OF RAILROAD BRIDGE NUMBER 106, 13 FEET SOUTH OF THE CENTER LINE OF A LEVEE WHICH PARALLELS THE RAILROAD, 4 FEET WEST OF THE 2ND TELEGRAPH POLE EAST OF MILEPOST 871, 1.2 FEET EAST OF A METAL WITNESS POST ABOUT 2 1/2 FEET BELOW THE LEVEL OF THE TRACKS, AND ON THE TOP OF A 5/8-INCH COPPER COATED ROD THAT IS DRIVEN TO A DEPTH OF 13 FEET AND IS ENCASED IN A 5-INCH IRON PIPE PROJECTING 12 INCHES.
01/01/1980 by NGS (GOOD)
RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1980 RECOVERED IN GOOD CONDITION.
01/01/1980 by NGS (GOOD)
RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1980 RECOVERED IN GOOD CONDITION.
12/02/1994 by USPSQD (GOOD)
RECOVERY NOTE BY US POWER SQUADRON 1994 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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