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Details for Benchmark: MC1808

N 41° 38.259 W 083° 28.041 (NAD 83)

Altitude: 604

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

Location:
In LUCAS county, OH View Original Datasheet
Designation:
OREGON
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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Found the benchmark in good condition. Had to clear a little dirt of it.

[Photos:]
photoOregon MC1808

Found and in good condition.

[Photos:]
photoBenchmark

Found with little trouble, under a little grass and dirt, sunken a few inches below ground

[Photos:]
photo2011-06-24 13.04.46

Found in good condition as listed below.

[Photos:]
photoSurvey disk

Found it with Papa2all.

[Photos:]
photoBanchmark

Found today needing a benchmark to complete Northwest Ohio Icon Challenge. Still there just had to clean off some dirt to find it.

Station recovered as described in good condition. It is 3 inches below ground level, and was covered with water.

[Photos:]
photoBM_MC1808_1.jpg
photoBM_MC1808_2.jpg
photoBM_MC1808_3.jpg
Looking south

Documented History (by the NGS)

01/01/1993 by OH-095 (MONUMENTED)
DESCRIBED BY LUCAS COUNTY OHIO 1993 THE STATION IS LOCATED IN LUCAS COUNTY, OHIO IN THE CITY OF OREGON. TO REACH THE STATION FROM THE INTERSECTION OF I-280 AND NAVARRE AVENUE (ROUTE 2) PROCEED EAST ALONG NAVARRE AVENUE 1.15 MILES TO ITS INTERSECTION WITH COY ROAD. TURN LEFT AND PROCEED NORTH ALONG COY ROAD APPROXIMATELY 200 FEET TO THE NORTH EDGE OF A DRAINAGE DITCH AND THE STATION ON THE LEFT. THE STATION IS A 3.5 INCH BRASS LUCAS COUNTY ENGINEER DISK SET IN THE TOP OF A 12 INCH DIAMETER CONCRETE MONUMENT 0.2 FEET BELOW GROUND SURFACE AND IS STAMPED --OREGON 1993--. THE STATION IS 36.0 FEET WEST FROM THE CENTERLINE OF COY ROAD, 6.9 FEET NORTHWEST FROM THE NORTHWEST CORNER OF A HEAD WALL, AND 48.5 FEET SOUTHEAST FROM THE SOUTHEAST CORNER OF AN ASPHALT LOT.

Control Text

  • The horizontal coordinates were established by GPS observations and adjusted by the National Geodetic Survey in April 1998.
  • The orthometric height was determined by GPS observations and a high-resolution geoid model.
  • The X, Y, and Z were computed from the position and the ellipsoidal ht.
  • The Laplace correction was computed from DEFLEC99 derived deflections.
  • The ellipsoidal height was determined by GPS observations and is referenced to NAD 83.
  • The geoid height was determined by GEOID99.

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