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Details for Benchmark: DU1025

N 33° 07.033 W 111° 50.433 (NAD 83)

Altitude: 1216.3

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

Location:
In PINAL county, AZ View Original Datasheet
Designation:
R 414 RESET
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 in good shape, as described.

[Photos:]
photoDU1025

Found in good shape.

[Photos:]
photoDU1025
photoDU1025 w GPSr
photoDU1025 Area

Found in good condition.

[Photos:]
photoDU1025 wGPSr

Recovered as described.

[Photos:]
photoIMAG0246

Recovered as described, in good condition.

[Photos:]
photoR 414 RESET / DU1025
A close-up of the mark, with the GPSr.
photoR 414 RESET / DU1025
A close-up of the mark alone.
photoR 414 RESET / DU1025
A wider view of the general area, looking southeast along the right-of-way fence.

Documented History (by the NGS)

01/01/1975 by AZHD (MONUMENTED)
DESCRIBED BY ARIZONA HIGHWAY DEPARTMENT (NOW AZDT) 1975 2.5 MI E FROM CASA BLANCA. FROM MILEPOST 176, I-10, WEST ON THE INTERSTATE FOR 0.1 MILES AND TO THE STATION ON THE LEFT. 1.0 FT. WEST OF THE EAST R/W FENCE LINE. 300 FT. SOUTHERLY OF CASA BLANCA ROAD. MARKED BY A P AND M SURVEY SIGN.

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  • The NAVD 88 height was computed by applying the VERTCON shift value to the NGVD 29 height (displayed under SUPERSEDED SURVEY CONTROL.) The vertical order pertains to the superseded datum.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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