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Details for Benchmark: PN0078

N 44° 30.767 W 088° 00.900 (NAD 83)

Altitude: 591.15

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

Location:
In BROWN county, WI View Original Datasheet
Designation:
P 2
Marker Type:
bench mark disk
Setting:
massive structures with deep foundations
Stability:
Most reliable and expected to hold position/elevation well.

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Found as described at the coordinates listed in previous logs.

[Photos:]
photoPN0078 P 2

With mom and dad (AstroD) verifying marks for the benchmark contest. Found as described and recoverd in good condition.

[Photos:]
photoP2 Brown County, WI

Relogging as part of the Spring 2009 Benchmark Contest.

Found as described and recovered in good condition.

[Photos:]
photoPN0078 close up - Brown County, WI

Found as described
hdcrow

Out to try our hand at benchmarking. Boy, is this a lot of fun! No need to climd in the bushes fro this one as they are all gone.

[Photos:]
photoPN0078 - Green Bay, WI

Had to jump into the bushes to get near this one!

[Photos:]
photoWow, does my hand really look like that??
N 44° 30.811 W 088° 00.875

Found It!

[last edit: 7/28/2003 7:17:02 PM PST]

[Photos:]
photoBenchmark & GPS
N 44° 30.815 W 088° 00.874

BantamC(RFC) recovered as described.

[Photos:]
photoBenchmark and GPS

Documented History (by the NGS)

01/01/1922 by CGS (MONUMENTED)
01/01/1972 by NGS (GOOD)
DESCRIBED BY NATIONAL GEODETIC SURVEY 1972 AT GREEN BAY. AT GREEN BAY, AT THE SOUTHEAST CORNER OF THE INTERSECTION OF WALNUT AND ADAMS STREET, SET VERTICALLY IN THE NORTH FACE AND AT THE NORTHWEST CORNER OF THE OLD POST OFFICE BUILDING (NOW THE COURTHOUSE ANNEX), 0.8 FOOT EAST OF THE NORTHWEST CORNER OF THE BUILDING AND 1.8 FEET ABOVE THE LEVEL OF THE GROUND.
01/01/1974 by NOS (GOOD)
RECOVERY NOTE BY NATIONAL OCEAN SERVICE 1974 IN GREEN BAY, AT THE SOUTHEAST CORNER OF SOUTH ADAMS AND EAST WALNUT STS., ON WALNUT ST. FACE OF THE BROWN COUNTY COURTHOUSE ANNEX, 58 FT. SOUTH OF THE SOUTH CURB OF WALNUT ST., 52.5 FT. EAST OF EAST CURB OF SOUTH ADAMS ST., 0.8 FT. EAST OF NORTHWEST CORNER, 2 FT. ABOVE THE GROUND, BEING HORIZONTAL LINE OF CROSS AT CENTER OF BRONZE DISC SET INTO THE WALL.
01/01/1985 by NGS (GOOD)
RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1985 RECOVERED IN GOOD CONDITION.
05/04/1994 by WI-009 (GOOD)
RECOVERY NOTE BY BROWN COUNTY WISCONSIN 1994 (AJH) RECOVERED AS DESCRIBED.

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 June 1991. WARNING-Repeat measurements at this control monument indicate possible vertical movement.
  • 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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