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Details for Benchmark: KY1192

N 40° 54.883 W 080° 39.683 (NAD 83)

Altitude: 1143.09

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

Location:
In MAHONING county, OH View Original Datasheet
Designation:
PINE AZ MK
Marker Type:
azimuth mark 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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The mark is in good condition. Add to description, the mark is 20 feet south of the centerline of West Garfield Road, 4.5 feet east of Pole 72984, 0.5 feet north of an orange witness post, and in the front yard of 569 West Garfield Road. The concrete post now projects 5 inches. My GPS coordinates: N 40° 54.879 W 80° 39.675.

[Photos:]
photoPINE AZ MK - Beaver Twp Mahoning Co OH
photoLooking N from mark
photoLooking E along Garfield Rd.
photoLooking W along Garfield Rd.
photoLooking S from mark
N 40° 54.880 W 080° 39.676

Marker is in good shape and very easy to find.

[Photos:]
photoKY1192 azimuth mark disk with Meri-Color
photoCloser view of KY1192 azimuth marker disk

Documented History (by the NGS)

01/01/1949 by CGS (MONUMENTED)
01/01/1950 by NGS (GOOD)
DESCRIBED BY NATIONAL GEODETIC SURVEY 1950 2.3 MI SW FROM NORTH LIMA. ABOUT 2.1 MILES SOUTH ALONG STATE HIGHWAY 7 FROM ITS INTERSECTION WITH STATE HIGHWAY 165 AT NORTH LIMA, THENCE ABOUT 0.5 MILE WEST ALONG GARFIELD-PETERSBURG ROAD. IT IS 20 FEET SOUTH OF THE CENTERLINE OF GARFIELD-PETERSBURG ROAD, 2 FEET SOUTH OF AN EAST-WEST FENCE LINE, 2 FEET SOUTHWEST OF A TELEPHONE POLE AND 5 FEET SOUTHWEST OF A WHITE WITNESS POST. A TRIANGULATION AZIMUTH DISK SET IN THE TOP OF A CONCRETE POST AND PROJECTING 3 INCHES.

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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