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Details for Benchmark: MB2403

N 41° 03.702 W 081° 00.149 (NAD 83)

Altitude: 1019

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

Location:
In PORTAGE county, OH View Original Datasheet
Designation:
61 064 1 P CO
Marker Type:
NGS Benchmark
Setting:
setting not listed - see description
Stability:
May hold, but of type commonly subject to surface motion.

Reference Points

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The mark is in good condition at N 41° 03.704 W 081° 00.152.

[Photos:]
photoMB2403(61 064 1 P CO)-Deerfield Twp Portage Co OH
photoMB2403 - Looking N on Mahoning Rd.
photoMB2403 - Looking E from mark
photoMB2403 - Looking W from mark
photoMB2403 - Looking S on Mahoning Rd.

Documented History (by the NGS)

01/01/1977 by OH-133 (MONUMENTED)
DESCRIBED BY PORTAGE COUNTY OHIO 1977 (GLW) THE STATION IS ABOUT 5-1/4 MILES EAST OF YALE, 3-1/2 MILES SOUTHEAST OF PALMYRA, AND 3-1/2 MILES NORTHEAST OF DEERFIELD, AND ON THE RIGHT-OF-WAY OF COUNTY HIGHWAY 73, MAHONING ROAD. TO REACH THE STATION FROM PALMYRA AT THE INTERSECTION OF STATE ROUTE 225 AND COUNTY HIGHWAY 18, TALLMADGE ROAD, GO EAST ON TALLMADGE ROAD FOR 2.6 MILES TO THE INTERSECTION OF COUNTY HIGHWAY 73, MAHONING ROAD, TURN RIGHT AND GO SOUTH FOR 2.5 MILES TO THE INTERSECTION OF COUNTY HIGHWAY 55, YALE ROAD, AND THE REFERENCE MARK IN THE CENTER OF THE INTERSECTION. (TURN RIGHT ON YALE ROAD AND GO WEST FOR 0.3 MILE TO AZIMUTH MARK 62 402 2 P CO ON THE RIGHT.) GO SOUTH ON MAHONING ROAD FOR 100 FEET TO THE STATION ON THE LEFT. CONTINUE SOUTH ON MAHONING ROAD FOR 0.35 MILE TO THE TOP OF A KNOLL AND AZIMUTH MARK 61 064 2 P CO ON THE LEFT. STATION MARKS, STAMPED---61-064-1 1977---, ARE PORTAGE COUNTY BRASS DISKS. THE SURFACE DISK IS SET IN THE TOP OF A 12-INCH CYLINDRICAL CONCRETE POST THAT IS FLUSH WITH THE GROUND SURFACE. IT IS 73.0 FEET EAST OF TELEPHONE POLE NUMBER SP-925, 63.2 FEET SOUTH OF POWER POLE NUMBER DF 852, AND 21.8 FEET EAST OF THE CENTERLINE OF MAHONING ROAD. THE UNDERGROUND DISK IS SET IN AN IRREGULAR MASS OF CONCRETE ABOUT 42 INCHES BELOW THE GROUND SURFACE. AZIMUTH MARK 62 402 2 P CO, STAMPED---62-402-2 1977---, IS A PORTAGE COUNTY BRASS DISK SET IN THE TOP OF A 12-INCH CYLINDRICAL CONCRETE POST THAT IS FLUSH WITH THE GROUND SURFACE. IT IS 37.8 FEET SOUTHEAST OF A 20-INCH HICKORY TREE, 34.6 FEET WEST OF A 12-INCH DOUBLE-TRUNKED APPLE TREE, AND 19.0 FEET NORTH OF THE CENTERLINE OF YALE ROAD. AZIMUTH MARK 61 064 2 P CO, STAMPED---61-064-2 1977---, IS A PORTAGE COUNTY BRASS DISK SET IN THE TOP OF A 12-INCH CYLINDRICAL CONCRETE POST THAT IS FLUSH WITH THE GROUND SURFACE. IT IS 27.7 FEET SOUTH OF POWER POLE NUMBER 24/10, AND 25.3 FEET EAST OF MAHONING ROAD, 24.0 FEET NORTHWEST OF A 10-INCH OAK TREE, AND IN THE LAWN OF A MOBILE HOME, ADDRESS NUMBER 2460. REFERENCE MARK 61 064 3 P CO, IS A 1 BY 36-INCH IRON ROD THAT IS 10 INCHES BELOW THE GROUND SURFACE. IT IS 46.5 FEET SOUTHEAST OF TELEPHONE POLE NUMBER 216CC, 19.8 FEET NORTH OF A 12-INCH OAK TREE, 19.6 FEET SOUTHWEST OF A 6-INCH HICKORY TREE, AND 13.0 FEET EAST OF THE CENTERLINE OF THE INTERSECTION OF MAHONING AND YALE ROADS. HEIGHT OF LIGHT ABOVE STATION MARK WAS 1.9 METERS. DESCRIBED BY F.J. PINTER

Control Text

  • The horizontal coordinates were established by classical geodetic methods and adjusted by the National Geodetic Survey in April 1998.
  • The NAVD 88 height was computed by applying the VERTCON shift value to the NGVD 29 height (displayed under SUPERSEDED SURVEY CONTROL.)
  • The Laplace correction was computed from DEFLEC99 derived deflections.
  • The geoid height was determined by GEOID99.

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