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Details for Benchmark: CZ1856

N 32° 14.084 W 110° 57.188 (NAD 83)

Altitude: 2825

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

Location:
In PIMA county, AZ View Original Datasheet
Designation:
TUCSON UNIV OF AZ CIVIL ENGR
Marker Type:
nail
Setting:
setting not listed - see description
Stability:
Mark of questionable or unknown stability.

Reference Points

Must Read!

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Today I received permission and an escort to get on the building. We searched using the measurements provided in the description of the marker:

[i]35.5 FEET SOUTHWEST OF THE NORTHEAST CORNER OF THE BUILDING, 34.5 FEET WEST OF THE EAST EDGE OF THE BUILDING, 8 FEET SOUTH OF THE NORTH EDGE OF THE BUILDING AND IN THE CENTER OF A WIRE MESH ENCLOSURE.[/i]

This area no longer has the enclosure and no nail could be located here. The images provided show the outline of the enclosure in the roofing material, my PDA and my benchmark coin.

Other images show the roofs general condition, but no nail was located.

[Photos:]
photofacing north wall
photoLooking towards NE Corner
photolarger version
photoLocation where nail should be

Documented History (by the NGS)

01/01/1971 by NGS (MONUMENTED)
DESCRIBED BY NATIONAL GEODETIC SURVEY 1971 (WMJ) THE STATION IS LOCATED ON THE ROOF OF THE ENGINEERING BUILDING ON THE CAMPUS OF THE UNIVERSITY OF ARIZONA, TUCSON. TO REACH THE STATION FROM THE SPEEDWAY EXIT ON INTERSTATE HIGHWAY 10 IN TUCSON GO EAST ON SPEEDWAY BLVD. FOR 1.3 MILE TO THE INTERSECTION OF PALM STREET. TURN RIGHT AND GO SOUTH ON PALM STREET FOR 0.2 MILE TO THE ENGINEERING BUILDING ON THE LEFT AND THE STATION ON THE ROOF. THE MARK IS A NAIL EMBEDDED IN THE ASPHALT ROOF OF THE ENGINEERING BUILDING. IT IS 35.5 FEET SOUTHWEST OF THE NORTHEAST CORNER OF THE BUILDING, 34.5 FEET WEST OF THE EAST EDGE OF THE BUILDING, 8 FEET SOUTH OF THE NORTH EDGE OF THE BUILDING AND IN THE CENTER OF A WIRE MESH ENCLOSURE.
12/07/1996 by USPSQD (GOOD)
RECOVERY NOTE BY US POWER SQUADRON 1996 RECOVERED IN GOOD CONDITION.

Control Text

  • The horizontal coordinates were established by classical geodetic methods and adjusted by the National Geodetic Survey in August 1993.
  • The orthometric height was scaled from a topographic map.
  • The Laplace correction was computed from DEFLEC99 derived deflections.
  • The geoid height was determined by GEOID99.

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