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Details for Benchmark: MC1812

N 41° 42.550 W 083° 28.807 (NAD 83)

Altitude: 583

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

Location:
In LUCAS county, OH View Original Datasheet
Designation:
POINT
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 in good condition. Used a little water to wash away dirt.

[Photos:]
photoPoint benchmark

Found while out with Chartmaker and Danielwest76. Thought we would drop by to locate the benchmark and found that it is no longer a libary, but a psychiatric center.

BM found in good condition. Photos taken. This area appears to no longer be a library but to be operating as a private physiotherapy centre. BM located in sw corner of property and marked by an orange witness post of a temporary nature.

This entry was edited by chartmaker on Tuesday, 31 May 2011 at 19:50:27 UTC.

A very quick find to confirm that this benchmark is still present and in good condition.

Benchmark found and in good condition.

[Photos:]
photoMC1812
photoMC1812 2
photoMC1812 3

Found it after looking near new Library. Guess I should have trusted the coordinates!

Station recovered as described in good condition.

[Photos:]
photoPOINT

too easy

Station recovered as described in good condition. Station was under 1.5 feet of snow, and was located by probing and then removing the snow to expose the station.

[Photos:]
photoBM_MC1812_1.jpg
photoBM_MC1812_2.jpg
photoBM_MC1812_3.jpg
photoBM_MC1812_4.jpg

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 TOLEDO. TO REACH THE STATION FROM THE INTERSECTION OF OTTAWA RIVER BRIDGE AND SUMMIT STREET PROCEED SOUTH ALONG SUMMIT STREET 0.9 MILES TO ITS INTERSECTION WITH 110TH STREET AND THE POINT PLACE LIBRARY AT THE SOUTHWEST CORNER. TURN RIGHT AND PROCEED WEST ALONG 110TH STREET 0.1 MILES TO THE ENTRANCE TO THE LIBRARY PARKING LOT. TURN LEFT AND PROCEED SOUTH ALONG THE WEST EDGE OF THE LIBRARY PARKING LOT APPROXIMATELY 100 FEET TO THE STATION ON THE RIGHT. TO THE STATION IS A 3.5 INCH BRASS LUCAS COUNTY ENGINEER DISK SET IN THE TOP OF A 12 INCH DIAMETER CONCRETE MONUMENT 0.1 FEET BELOW THE GROUND AND IS STAMPED --POINT 1993--. THE STATION IS 5.0 FEET EAST FROM A CHAIN LINK FENCE, 5.2 FEET WEST FROM THE EDGE OF AN ASPHALT PARKING LOT, 21.3 FEET NORTHWEST FROM A TELEPHONE POLE, AND 10.1 FEET NORTHEAST FROM A FENCE CORNER POST.

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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