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Details for Benchmark: DV0332

N 33° 04.183 W 112° 04.383 (NAD 83)

Altitude: 1155.41

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

Location:
In PINAL county, AZ View Original Datasheet
Designation:
C 274
Marker Type:
bench mark disk
Setting:
massive structures
Stability:
Probably hold position/elevation well.

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Recovered as described, in good condition.

[Photos:]
photoC 274 / DV0332
A close-up of the mark, with the GPSr.
photoC 274 / DV0332
A close-up of the mark alone.
photoC 274 / DV0332
A wider view of the general area, looking southeast along the tracks.

Documented History (by the NGS)

01/01/1948 by CGS (MONUMENTED)
01/01/1967 by NGS (GOOD)
DESCRIBED BY NATIONAL GEODETIC SURVEY 1967 1.85 MI W FROM MARICOPA. ABOUT 0.1 MILE NORTH ALONG A PAVED ROAD FROM THE POST OFFICE AT MARICOPA, THENCE 1.75 MILES WEST ALONG THE SOUTHERN PACIFIC RAILROAD, IN S 20, T 4 S, R 3 E, 0.05 MILE EAST OF MILEPOST NUMBER 896, 6 1/2 FEET SOUTH OF THE SOUTH RAIL OF THE SOUTH SET OF TRACKS, SET IN THE TOP OF THE SOUTH END OF THE EAST CONCRETE ABUTMENT OF RAILROAD BRIDGE NUMBER 896.03, AND ABOUT 1 FOOT BELOW THE LEVEL OF THE TRACKS.
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.

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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