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Details for Benchmark: OQ0760

N 43° 47.616 W 096° 33.136 (NAD 83)

Altitude: 1575

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

Location:
In MINNEHAHA county, SD View Original Datasheet
Designation:
SHERMAN
Marker Type:
triangulation station disk
Setting:
set into the top of a round concrete monument
Stability:

Reference Points

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Documented History (by the NGS)

01/01/1949 by CGS (MONUMENTED)
DESCRIBED BY COAST AND GEODETIC SURVEY 1949 (MEW) THE STATION IS LOCATED ABOUT 8 MILES EAST AND 2 MILES SOUTH OF THE SMALL CITY OF DELL RAPIDS, ON LAND OWNED BY MR. BENNY BERT WHO LIVES ABOUT 2 MILES WEST OF THE STATION. IT IS 35 FEET WEST OF THE CENTERLINE OF A ROAD AND 1 FOOT SOUTHWEST OF A FENCE CORNER. THE MARK IS STAMPED SHERMAN 1949 AND IS SET FLUSH WITH THE GROUND. REFERENCE MARK NO. 1 IS 33 FEET EAST OF THE CENTERLINE OF A ROAD, 13 FEET SOUTH OF THE CENTERLINE OF A ROAD AND 1 FOOT SOUTHWEST OF A FENCE CORNER. THE MARK IS STAMPED SHERMAN NO 1 1949 AND PROJECTS ABOUT 2 INCHES. REFERENCE MARK NO. 2 IS 34 FEET WEST OF THE CENTERLINE OF A ROAD. THE MARK IS STAMPED SHERMAN NO 2 1949 AND PROJECTS ABOUT 2 INCHES. AZIMUTH MARK IS 33 FEET EAST OF THE CENTERLINE OF A ROAD, 2 FEET SOUTH OF A TELEPHONE POLE AND 1 FOOT WEST OF A FENCELINE. THE MARK IS STAMPED SHERMAN 1949 AND PROJECTS ABOUT 3 INCHES. TO REACH FROM THE INTERSECTION OF MAIN STREET AND U.S. HIGHWAY 77 AT THE EAST EDGE OF DELL RAPIDS, GO NORTH FOR 0.2 MILE TO CROSS ROADS, TURN RIGHT (EAST) FOR 6.8 MILE TO CROSSROADS AND SCHOOL HOUSE ON RIGHT, CONTINUE EAST FOR 0.95 MILE TO CROSSROADS, TURN RIGHT (SOUTH) FOR 1.65 MILES TO AZIMUTH MARK ON LEFT AS DESCRIBED, CONTINUE SOUTH FOR 0.4 MILE TO STATION ON RIGHT. HEIGHT OF LIGHT ABOVE STATION MARK 23 METERS.

Control Text

  • This mark is at Sisseton Airport (8D3)
  • The horizontal coordinates were established by classical geodetic methods and adjusted by the National Geodetic Survey in January 1998.
  • The orthometric height was scaled from a topographic map.
  • The Laplace correction was computed from DEFLEC99 derived deflections.
  • The geoid height was determined by GEOID99.

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