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Details for Benchmark: CZ1443

N 32° 33.250 W 111° 18.383 (NAD 83)

Altitude: 1897.21

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

Location:
In PINAL county, AZ View Original Datasheet
Designation:
H 424
Marker Type:
bench mark disk
Setting:
stainless steel rod
Stability:
Probably hold position/elevation well.

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Found the WP OK, but the mark must be completely buried. I didn't have a metal detector; poked around some with a screwdriver, but no luck. It's probably there.

found on a day of benchmarking with Carmel

[Photos:]
photoH424

Recovered on a run for some benchmarks.

[Photos:]
photoCZ1443

Recovered as described, in good condition. The telephone pole and it's guy wire have been removed.

EDIT: Speeling

[This entry was edited by AZcachemeister on Saturday, March 21, 2009 at 10:02:03 AM.]

[Photos:]
photoH 424 / CZ1443
A close-up of the mark alone.
N 33° 33.274 W 111° 18.389

Found in good condition today. Added WP and photo.

[Photos:]
photoH424 benchmark

Found in good condition.

MO & GO; Tucson, Arizona

[Photos:]
photoH 424, Pinal County Arizona

Recovered in good condition. Pipe cover was missing, but the station was solid.

[Photos:]
photoH 424 near I 10 in southern AZ.

Documented History (by the NGS)

01/01/1980 by NGS (MONUMENTED)
DESCRIBED BY NATIONAL GEODETIC SURVEY 1980 49.3 KM NW FROM TUCSON. 49.3 KILOMETERS (30.6 MILES) NORTHWEST OF THE SOUTHERN PACIFIC RAILROAD FROM THE STATION AT TUCSON, 91 PACES SOUTHEAST AND ACROSS THE FRONTAGE ROAD FROM INTERSTATE HIGHWAY 10 MILE POST 228, SET AT A DOUBLE POLE TELEPHONE LINE STRUCTURE AND 1.3 METERS (4.3 FEET)SOUTHEAST OF THE SOUTHWEST TELEPHONE POLE NUMBER 6L, 0.4 KILOMETER (0.25 MILE) NORTHWEST OF THE ENTRANCE TO A POWER PLANT. 32.2 METERS (105.6 FEET) SOUTHWEST OF THE SOUTHWEST RAIL, 9.0 METERS (29.5 FEET) NORTHEAST OF AND LEVEL WITH THE FRONTAGE ROAD CENTERLINE, 43.65 METERS (143.0 FEET) WEST OF THE WEST CORNER OF RAILROAD BRIDGE 953.38, 5.6 METERS (18.4 FEET) NORTHWEST OF THE ANCHOR FOR THE SOUTHEAST GUY WIRE FOR THE POLE, 8.25 METERS (27.0 FEET) SOUTHWEST OF THE SOUTHWEST ONE OF TWO WITNESS POST FOR A PETROLEUM LINE. THE MARK IS 1.8 M BELOW THE RAILS.

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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