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Details for Benchmark: MD0127

N 41° 05.550 W 084° 25.200 (NAD 83)

Altitude: 714.27

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

Location:
In PAULDING county, OH View Original Datasheet
Designation:
MELROSE RM 2
Marker Type:
reference 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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N 41° 25.566 W 084° 25.240

Station recovered as described in good condition. Coordinates listed above. The 1992 description is adequate except that State Route 613 has been realigned and the station is now further to the north. A new measurement was not taken.

[Photos:]
photoBM_MD0127_3.jpg
Looking NE
photoBM_MD0127_2.jpg
photoBM_MD0127_1.jpg

Documented History (by the NGS)

01/01/1943 by CGS (MONUMENTED)
01/01/1968 by NGS (GOOD)
DESCRIBED BY NATIONAL GEODETIC SURVEY 1968 0.1 MI W FROM MELROSE. ABOUT 0.1 MILE WEST ALONG STATE HIGHWAY 113 FROM THE CROSSING OF THE NORFOLK AND WESTERN RAILWAY AT MELROSE, 141 FEET NORTH-NORTHEAST AND ACROSS THE HIGHWAY FROM THE NORTHWEST CORNER OF A SERVICE STATION AND RESTURANT BUILDING COMBINED, 35 FEET NORTH OF THE CENTER LINE OF THE HIGHWAY, 33 FEET WEST OF POWER LINE POLE 458 D 339, 461 FEET WEST OF BENCH MARK V 314 1968 DESCRIBED, 2 FEET EAST OF A METAL WITNESS POST, ABOUT LEVEL WITH THE HIGHWAY AND SET IN THE TOP OF A CONCRETE POST PROJECTING 2 INCHES ABOVE THE LEVEL OF THE GROUND. IN SECTION 29, R 4 E, T 2 N.
10/20/1992 by NGS (GOOD)
RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1992 0.1 KM (0.05 MI) NORTHERLY ALONG STATE STREET FROM THE POST OFFICE IN MELROSE, THENCE 0.2 KM (0.10 MI) WESTERLY ALONG STATE HIGHWAY 613, 11.0 M (36.1 FT) NORTH OF THE HIGHWAY CENTERLINE, 10.8 M (35.4 FT) WEST OF A UTILITY LIGHT POLE, 0.4 M (1.3 FT) EAST OF A WITNESS POST, 0.3 M (1.0 FT) BELOW THE LEVEL OF THE HIGHWAY, AND THE MONUMENT IS FLUSH WITH THE GROUND SURFACE.

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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