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Details for Benchmark: DV1714

N 33° 31.367 W 112° 16.300 (NAD 83)

Altitude: 1064.13

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

Location:
In MARICOPA county, AZ View Original Datasheet
Designation:
1062.19
Marker Type:
bench mark disk
Setting:
retaining walls, concrete ledge, etc.
Stability:
May hold, but of type commonly subject to surface motion.

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found in great shape

[Photos:]
photoIMG_20130102_123125

Recovered as described, in good condition.

[Photos:]
photo1062.19 / DV1714
A close-up of the mark w/GPSr.
photo1062.19 / DV1714
A close-up of the mark alone.

Documented History (by the NGS)

Unknown by AZ-013 (MONUMENTED)
01/01/1982 by AZDT (GOOD)
DESCRIBED BY ARIZONA DEPARTMENT OF TRANSPORTATION 1982 6.7 KM (4.2 MI) NORTH FROM TOLLESON. FROM 99TH AVENUE AND INTERSTATE 10 IN TOLLESON TRAVEL NORTH 4.2 MI (6.7 KM) ALONG 99TH AVENUE TO THE STATION ON THE RIGHT, A STANDARD BRASS CAP SET IN CONCRETE HANDRAIL OF BRIDGE OVER THE GRAND CANAL AT BETHANY HOME, 22 FT (6.71 METERS) EAST OF CENTERLINE OF 99TH AVENUE, 1.15 FT (0.35 METERS) NORTH OF SOUTH END OF EAST HANDRAIL, 2.8 FT (0.85 METERS) ABOVE GROUND.

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 November 1993.
  • 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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