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Details for Benchmark: DV0130

N 33° 45.350 W 112° 07.617 (NAD 83)

Altitude: 1550.9

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

Location:
In MARICOPA county, AZ View Original Datasheet
Designation:
R 56
Marker Type:
bench mark disk
Setting:
light structures
Stability:
Mark of questionable or unknown stability.

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N 33° 45.353 W 112° 07.619

Recovered mark in good condition.

[Photos:]
photoR 56 - Close Up
photoR 56 - Close Up with GPSr
photoR 56 - Standing View
photoR 56 - View North from Mark

The wideining of I-17 is creeping ever closer to this mark....but it's still there.

[Photos:]
photoR56closeup
photoR56vicnityWithWitnessPost
photoR56vicnityLookingSouth

Recovered as described, in good condition. GPS (HH2) co-ordinates N33º45.350' W112º07.628'.

[Photos:]
photoR 56 / DV0130
A close-up of the mark, with the GPSr.
photoR 56 / DV0130
A close-up of the mark alone.
photoR 56 / DV0130
A wide view of the general area, looking south.
N 33° 45.349 W 112° 07.629

1715 10 AUG 2002

Team members: Ranger Alpha, Ranger Charlie

Benchmark recovered in good condition. The witness post was present, but bent over, and the metal witness sign was folded in half. We substantially straightened both the post and the sign. We recorded the above WGS84 coordinates at the benchmark.

Ranger Team.

[Photos:]
photoBenchmark disk
photoWitness post and monument

Documented History (by the NGS)

01/01/1934 by CGS (MONUMENTED)
01/01/1970 by NGS (GOOD)
DESCRIBED BY NATIONAL GEODETIC SURVEY 1970 10.4 MI S FROM NEW RIVER. 10.4 MILES SOUTH ALONG INTERSTATE HIGHWAY 17 FROM THE BRIDGE OVER NEW RIVER OR 165 FEET NORTHWEST OF MILE POST 221. 200 FEET NORTH OF POWER POLE NO. 89, 36 FEET WEST OF THE WEST RIGHT OF WAY FENCE AND 1 FOOT NORTH OF A WITNESS POST. THE MARK IS SET IN THE TOP OF A 6 INCH SQUARE CONCRETE MONUMENT WHICH PROJECTS ABOUT 2 INCHES. IT IS UNDER THE POWER LINE.
01/01/1977 by LOCENG (GOOD)
RECOVERY NOTE BY LOCAL ENGINEER (INDIVIDUAL OR FIRM) 1977 RECOVERED IN GOOD CONDITION.

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  • The NAVD 88 height was computed by applying the VERTCON shift value to the NGVD 29 height (displayed under SUPERSEDED SURVEY CONTROL.) The vertical order pertains to the superseded datum.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