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Details for Benchmark: MB2411

N 41° 00.462 W 081° 05.916 (NAD 83)

Altitude: 1050

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

Location:
In PORTAGE county, OH View Original Datasheet
Designation:
61 058 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 the posted coordinates.

[Photos:]
photoMB2411 - Looking S from mark
photoMB2411 - Looking W from mark
photoMB2411 - Looking E from mark
photoMB2411 - Looking N from mark
photoMB2411(61 058 1 P CO)-Deerfield Twp Portage Co OH

Documented History (by the NGS)

01/01/1977 by OH-133 (MONUMENTED)
DESCRIBED BY PORTAGE COUNTY OHIO 1977 (GLW) THE STATION IS ABOUT 3-1/2 MILES SOUTH OF YALE, 3 MILES SOUTHEAST OF ATWATER, 3 MILES SOUTHWEST OF DEERFIELD, AND ON THE RIGHT-OF-WAY OF STATE ROUTE 225. TO REACH THE STATION FROM THE INTERSECTION OF U.S. HIGHWAY 224 AND STATE ROUTE 183 AT ATWATER, GO EAST ON U.S. HIGHWAY 224 FOR 2.6 MILES TO THE INTERSECTION OF STATE ROUTE 225, TURN RIGHT AND GO SOUTH ON STATE ROUTE 225 FOR 0.4 MILE TO AZIMUTH MARK 71 004 1 P CO ON THE RIGHT. CONTINUE SOUTH ON STATE ROUTE 225 FOR 0.75 MILE TO THE STATION ON THE LEFT, CONTINUE SOUTH FOR 0.65 MILE TO AZIMUTH MARK 71 001 1 P CO ON THE LEFT. CONTINUE SOUTH ON STATE ROUTE 225 FOR 0.5 MILE TO THE INTERSECTION OF GERMAN CHURCH ROAD, TOWNSHIP HIGHWAY 49 AND AZIMUTH MARK 61 060 1 P CO IN THE CENTER OF THE INTERSECTION. STATION MARKS, STAMPED---61-058-1 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 83.8 FEET SOUTHEAST OF POWER POLE NUMBER 69AL/27 AND 34.3 FEET EAST OF THE CENTERLINE OF STATE ROUTE 225. THE UNDERGROUND DISK IS SET IN AN IRREGULAR MASS OF CONCRETE ABOUT 42 INCHES BELOW THE GROUND SURFACE. AZIMUTH MARK 71 004 1 P CO, STAMPED---71-004-1 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 210 FEET NORTHWEST OF A GUY POLE, 200 FEET NORTH OF A POWER POLE, 73.0 FEET SOUTH OF A POWER POLE, AND 38.5 FEET WEST OF THE CENTERLINE OF STATE ROUTE 225. AZIMUTH MARK 71 001 1 P CO, STAMPED---71-001-1 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 185 FEET NORTH OF POWER POLE NUMBER 69 AL/41, 73.5 FEET SOUTH OF POWER POLE NUMBER 69 AL/40, 81.0 FEET SOUTHWEST OF TELEPHONE POLE NUMBER 14/63, 38.2 FEET WEST OF THE CENTERLINE OF STATE ROUTE 225, AND 7.2 FEET NORTHEAST OF A 6-INCH ASH TREE. AZIMUTH MARK 61 060 1 P CO, IS AN IRON ROD SET IN A 12 BY 12-INCH MONUMENT BOX WITH METAL LID THAT IS FLUSH WITH THE ROAD SURFACE. IT IS 80.7 FEET SOUTHEAST OF POWER AND TELEPHONE POLE NUMBER 1/107, 79.5 FEET SOUTHEAST OF WOODEN SIGN POST, 75 FEET NORTHEAST OF TELEPHONE AND POWER POLE NUMBER 70 AL/26, AND LOCATED IN THE CENTER OF THE INTERSECTION OF STATE ROUTE 225 AND GERMAN CHURCH ROAD, TOWNSHIP HIGHWAY 49. NO REFERENCE MARKS ESTABLISHED FOR THIS STATION. HEIGHT OF LIGHT ABOVE STATION MARK WAS 1.5 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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