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Details for Benchmark: PP1156

N 44° 51.750 W 093° 21.733 (NAD 83)

Altitude: 861.54

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

Location:
In HENNEPIN county, MN View Original Datasheet
Designation:
39 RDS
Marker Type:
survey disk
Setting:
set into the top of a round concrete monument
Stability:
May hold, but of type commonly subject to surface motion.

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Could not find any remnants of an old tower. This may have been removed or buried when retention wall work was done. It was not recovered in 2007 as noted below from an updated datasheet.

STATION RECOVERY (2007)

RECOVERY NOTE BY MN DEPT OF TRANSP 2007 (JJB) THE MARK WAS NOT RECOVERED

Found while walking from my hotel to a local cache!

Got this one too, got to the site After circling.

[Photos:]
photoMarker sign
photoGPS and marker
photoClose up

This is so much easier when you have the description. The coordinates put the GPS pointing to the north side of the bridge, but the description is right on.

[Photos:]
photoPP1156
photoPP1156 marker

Documented History (by the NGS)

1/1/1950 by USGS (MONUMENTED)
1/1/1970 by MNDT (GOOD)
DESCRIBED BY MN DEPT OF TRANSP 1970 IN EDINA. MARK IS LOCATED IN EDINA, ABOUT 1.8 MILES SOUTH OF THE JUNCTION OF T.H. 169/212 AND THE MINNEAPOLIS, NORTHFIELD AND SOUTHERN RAILROAD IN EDINA, 0.2 MILES NORTH OF FAI 494, 28 FEET SOUTH OF OLD T.H. 5, 405 FEET EAST OF A T-ROAD NORTH (CAHILL ROAD), 28 FEET SOUTHWEST OF THE SOUTHWEST CORNER OF A BRIDGE OVER THE M.N. AND S. R.R., 55 FEET NORTHWEST OF THE NORTHWEST LEG OF AN OLD TRANSMISSION TOWER FOUNDATION, IN THE TOP OF A CONCRETE MONUMENT SET FLUSH WITH THE GROUND. SE 1/4 SECTION 8, T116N, R 21W. NOTE-- THIS MARK IS ALSO 3.2 MILES WEST OF THE JUNCTION OF FAI 494 AND FAI 35W IN BLOOMINGTON.

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.
  • 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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