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Details for Benchmark: DU0470

N 33° 17.600 W 111° 05.950 (NAD 83)

Altitude: 2809.8

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

Location:
In PINAL county, AZ View Original Datasheet
Designation:
T 107
Marker Type:
bench mark disk
Setting:
light structures
Stability:
Mark of questionable or unknown stability.

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Found as described.

Found it.

[Photos:]
photoDU0470
photoDU0470 GPS
photoDU0470 from the street

Found it in good shape.

[Photos:]
photoDU0470

Recovered as described (except that the mark is at the west end of the north side of the building), in good condition.

[Photos:]
photoT 107 / DU0470
A close-up of the mark, with the GPSr.
photoT 107 / DU0470
A close-up of the mark alone.
photoT 107 / DU0470
A wide view of the general area, looking southeast.

Recovered in good condition.

[Photos:]
photoBM Disk
A closeup of the BM Disk.
photoBuilding
The disk is set vertically in the wall of this building.

Documented History (by the NGS)

01/01/1935 by CGS (MONUMENTED)
DESCRIBED BY COAST AND GEODETIC SURVEY 1935 IN SUPERIOR. AT SUPERIOR, 0.3 MILE WEST OF THE HIGH SCHOOL, AT THE INTERSECTION OF MAIN STREET AND LOB AVENUE, AT THE NORTHWEST CORNER OF THE BUILDING BELONGING IN 1935 TO THE L. GARCIA SON AND CO., IN THE CONCRETE WALL, AND 2.7 FEET ABOVE THE SIDEWALK. A STANDARD DISK, STAMPED T 107 1935 AND SET VERTICALLY.

Control Text

  • The horizontal coordinates were scaled from a topographic map and have an estimated accuracy of +/- 6 seconds.
  • The NAVD 88 height was computed by applying the VERTCON shift value to the NGVD 29 height (displayed under SUPERSEDED SURVEY CONTROL.) The vertical order pertains to the superseded datum.
  • The geoid height was determined by GEOID99.

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