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Details for Benchmark: CZ1050

N 32° 44.217 W 111° 31.883 (NAD 83)

Altitude: 1576.01

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

Location:
In PINAL county, AZ View Original Datasheet
Designation:
V 363
Marker Type:
bench mark disk
Setting:
abutments and piers of large bridges
Stability:
Probably hold position/elevation well.

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Recovered as described, in good condition.

[Photos:]
photoV 363 / CZ1050
A close-up of the mark, with the GPSr.
photoV 363 / CZ1050
A close-up of the mark alone.
photoV 363 / CZ1050
A wide view of the area, looking generally west-northwest.

Documented History (by the NGS)

01/01/1967 by CGS (MONUMENTED)
DESCRIBED BY COAST AND GEODETIC SURVEY 1967 1.8 MI SE FROM ELOY. ABOUT 1.8 MILES SOUTHEAST ALONG THE SOUTHERN PACIFIC RAILROAD FROM THE STATION AT ELOY, OR ABOUT 2.5 MILES NORTHWEST ALONG THE SOUTHERN PACIFIC RAILROAD FROM THE DISTRICT 33 ELEMENTARY SCHOOL AT PICACHO, IN S 9, T 8 S, R 8 E, 1 POLE NORTHWEST OF MILEPOST 935, 7 FEET NORTHEAST OF THE NORTHEAST RAIL OF THE TRACK, SET IN THE TOP OF THE NORTHEAST END OF THE SOUTHEAST ABUTMENT OF RAILROAD BRIDGE NUMBER 934.97, AND ABOUT 1 FOOT BELOW THE LEVEL OF THE TRACKS.
01/01/1980 by NGS (GOOD)
RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1980 THE MARK IS 0.4 M BELOW THE TRACKS. 25.9 KILOMETERS (16.1 MILES) SOUTHEAST ALONG THE SOUTHERN PACIFIC RAILROAD FROM THE STATION AT CASA GRANDE, 0.2 KILOMETER (0.1 MILE) SOUTHEAST OF THE INTERSECTION OF THE RAILROAD AND LA PALMA ROAD, SET IN TOP OF THE NORTHEAST END OF THE SOUTHEAST ABUTMENT OF RAILROAD BRIDGE 934.97, 2.1 METERS (7 FEET) NORTHEAST OF THE NORTHEAST RAIL, 49.4 METERS (162 FEET) NORTHWEST OF MILE POST 935 AND 0.45 METER (1.5 FEET) SOUTHWEST OF THE NORTHEAST END OF THE ABUTMENT.
01/01/1980 by NGS (GOOD)
RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1980 THE MARK IS 0.4 M BELOW THE TRACKS. 25.9 KILOMETERS (16.1 MILES) SOUTHEAST ALONG THE SOUTHERN PACIFIC RAILROAD FROM THE STATION AT CASA GRANDE, 0.2 KILOMETER (0.1 MILE) SOUTHEAST OF THE INTERSECTION OF THE RAILROAD AND LA PALMA ROAD, SET IN TOP OF THE NORTHEAST END OF THE SOUTHEAST ABUTMENT OF RAILROAD BRIDGE 934.97, 2.1 METERS (7 FEET) NORTHEAST OF THE NORTHEAST RAIL, 49.4 METERS (162 FEET) NORTHWEST OF MILE POST 935 AND 0.45 METER (1.5 FEET) SOUTHWEST OF THE NORTHEAST END OF THE ABUTMENT.
01/01/1984 by NGS (GOOD)
RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1984 RECOVERED IN GOOD CONDITION.
12/05/1991 by NGS (GOOD)
RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1991 0.4 KM (0.25 MI) SOUTHERLY ALONG MAIN STREET FROM THE POST OFFICE IN ELOY, THENCE 2.7 KM (1.65 MI) SOUTHEASTERLY ALONG THE SOUTHERN PACIFIC RAILROAD, IN TOP OF AND 0.5 M (1.6 FT) SOUTHWEST OF THE NORTHEAST END OF THE SOUTHEAST CONCRETE ABUTMENT OF RAILROAD BRIDGE NUMBER 934.97, 0.2 KM (0.10 MI) SOUTHEAST OF THE INTERSECTION OF LA PALMA ROAD, 2.0 M (6.6 FT) NORTHEAST OF THE NEAR RAIL, AND 0.3 M (1.0 FT) BELOW THE LEVEL OF THE TRACK.

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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