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Details for Benchmark: DU1498

N 33° 23.500 W 111° 30.633 (NAD 83)

Altitude: 1705.1

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

Location:
In PINAL county, AZ View Original Datasheet
Designation:
1702.72
Marker Type:
survey disk
Setting:
light structures
Stability:
Mark of questionable or unknown stability.

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Easy to get to and in good condition.

[Photos:]
photoDU1498
Close up
photoDU1498
Nearby

I don't think this was as hard to get to as it's counterpart nearby but somewhat of a challenge. Found in good shape.

[Photos:]
photoDU1498_1702.72

Hard to get to due to palo verde overgrowth, but found in good shape.

[Photos:]
photoDU1498
photoDU1498 w GPSr
photoDU1498 Area

Found in good condition as described at N33 23.512 W111 30.634

[Photos:]
photo1702.72
photowith gps

This one is alongside a road that's no longer used

[Photos:]
photo1702.72 Closeup
photo1702.72 Vicinity
photo1702.72 Wider View
It's in there somewhere

Found it ok.

[Photos:]
photoDU1498

1604 ft N33 23.510 W111 30.633
found as described in good condition.

[Photos:]
photoDU1498 1702.72_01.jpg
photoDU1498 1702.72_02 looking west.jpg

Recovered as described, in good condition.

[Photos:]
photo1702.72 / DU1498
A close-up of the mark w/GPSr. Yes, it's still there.
photo1702.72 / DU1498
A close-up of the mark alone.

Area described has been resurfaced and new, concrete culverts built.

Documented History (by the NGS)

Unknown by AZHD (MONUMENTED)
01/01/1975 by AZDT (GOOD)
DESCRIBED BY ARIZONA DEPARTMENT OF TRANSPORTATION 1975 1.85 MI SE FROM PALM SPRINGS. FROM MILEPOST 198, U.S. 60, 70, AND 80, EAST ON THE HIGHWAY FOR 0.6 MILES AND TO THE STATION ON THE RIGHT. ON A CULVERT HEADWALL, SOUTH OF THE EAST BOUND LANE. AN AHD BRASS CAP, SET IN A CONCRETE CULVERT HEADWALL.
01/01/1975 by AZDT (GOOD)
RECOVERY NOTE BY ARIZONA DEPARTMENT OF TRANSPORTATION 1975 FROM MILEPOST 198, U.S. 60, 70, AND 80, EAST ON THE HIGHWAY FOR 0.6 MILES AND TO THE STATION ON THE RIGHT. ON A CULVERT HEADWALL, SOUTH OF THE EAST BOUND LANE. AN AHD BRASS CAP, SET IN A CONCRETE CULVERT HEADWALL.

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  • The NAVD 88 height was computed by applying the VERTCON shift value to the NGVD 29 height (displayed under SUPERSEDED SURVEY CONTROL.)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