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Details for Benchmark: DV0322

N 33° 04.617 W 112° 09.017 (NAD 83)

Altitude: 1229.32

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

Location:
In PINAL county, AZ View Original Datasheet
Designation:
E 274
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 it in good shape

Recovered as described, in good condition.

[Photos:]
photoE 274 / DV0322
A close-up of the mark, with the GPSr.
photoE 274 / DV0322
A close-up of the mark alone.
photoE 274 / DV0322
A wider view of the general area, looking west towards the nearby grade crossing.

Documented History (by the NGS)

01/01/1948 by CGS (MONUMENTED)
01/01/1967 by NGS (GOOD)
DESCRIBED BY NATIONAL GEODETIC SURVEY 1967 6.5 MI W FROM MARICOPA. ABOUT 0.1 MILE NORTH ALONG A PAVED ROAD FROM THE POST OFFICE AT MARICOPA, THENCE 6.4 MILES WEST ALONG THE SOUTHERN PACIFIC RAILROAD, OR ABOUT 7.05 MILES EAST ALONG THE SOUTHERN PACIFIC RAILROAD FROM THE NELSON ELEMENTARY SCHOOL AT MOBILE, IN S 15, T 4 S, R 2 E, 171 FEET NORTH AND A ACROSS THE TRACKS FROM BENCH MARK P 87, 81 FEET NORTH OF THE NORTH RAIL OF THE MAIN TRACK, 132 FEET NORTHEAST OF THE CENTER OF THE CROSSING OF THE RAILROAD AND A GRADED DIRT ROAD, 92 FEET EAST OF THE CENTER LINE OF THE DIRT ROAD, 69 FEET NORTHWEST OF A TELEPHONE POLE, 45 FEET SOUTH OF THE CENTER LINE OF A GRADED DIRT ROAD, 1.4 FEET WEST OF A METAL WITNESS POST, ABOUT 1 1/2 FEET BELOW THE LEVEL OF THE TRACKS, AND SET IN THE TOP OF A CONCRETE POST PROJECTING 4 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.
04/25/1998 by USPSQD (GOOD)
RECOVERY NOTE BY US POWER SQUADRON 1998 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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