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Details for Benchmark: OQ0677

N 43° 43.982 W 096° 20.418 (NAD 83)

Altitude: 1729

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

Location:
In ROCK county, MN View Original Datasheet
Designation:
POST
Marker Type:
horizontal control disk
Setting:
set into the top of a round concrete monument
Stability:
May hold, but of type commonly subject to surface motion.

Reference Points

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Documented History (by the NGS)

01/01/1927 by CGS (MONUMENTED)
01/01/1935 by CGS (GOOD)
DESCRIBED BY COAST AND GEODETIC SURVEY 1935 ABOUT 5 MILES N AND 6-1/2 MILES W OF LUVERNE, 7 MILES W AND 3 MILES S OF TOWN OF HARDWICK, 463 FEET E OF SW CORNER OF SE 1/4 SEC. 10, T 103 N, R 46 W, OF FIFTH PRINCIPAL MERIDIAN, 7.66 METERS (25.1 FEET) N OF CENTER LINE OF SECTION-LINE ROAD, AND 1 FOOT S OF N RIGHT-OF-WAY FENCE OF ROAD, IN LINE OF TELEPHONE POLES, AND 2 FEET W OF POLE. TO REACH FROM HARDWICK, GO 1.5 MILES W TO POINT WHERE U.S. 75 TURNS N AND GRAVEL ROAD CONTINUES W, GO W 5.0 MILES TO DIRT CROSSROADS, TURN S ONTO DIRT ROAD AND GO 3.0 MILES TO ANOTHER CROSS ROAD, THENCE W 0.45 MILE TO TOP OF GRADE AND STATION SITE ON R, N. SURFACE AND UNDERGROUND MARKS ARE STANDARD STATION DISKS IN CONCRETE. UPPER MARK IS FLUSH WITH SURFACE OF GROUND. REFERENCE MARKS NO. 1 AND NO. 2 ARE STANDARD REFERENCE DISKS IN CONCRETE, FLUSH WITH SURFACE OF GROUND. NO. 1 IS 400 FEET W OF CENTER LINE OF N-S ROAD, 24 FEET N OF CENTER LINE OF E-W ROAD, 1 FOOT S OF N RIGHT-OF-WAY FENCE, AND 541.1 METERS (1,175 FEET) FROM STATION N 89 DEG 11 MIN E. NO. 2 IS IN NE 1/4 SEC. 15, 20 FEET S OF CENTER LINE OF E-W SECTION-LINE ROAD, 11 FEET N OF RIGHT-OF-WAY FENCE LINE, AND 30.891 METERS (101.34 FEET) FROM STATION S 62 DEG 33 MIN W. NO. 3, ESTABLISHED IN 1935, IS STANDARD REFERENCE DISK IN CONCRETE. IT PROJECTS 6 INCHES ABOVE GROUND, AND IS 29 FEET S OF CENTER LINE OF DIRT ROAD, 1 FOOT N OF RIGHT-OF-WAY FENCE LINE, AND 19.975 METERS (65.53 FEET) FROM STATION S 34 DEG 37 MIN E.
01/01/1963 by CGS (GOOD)
RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1963 (JAW) STATION RECOVERED AS DESCRIBED.
11/30/1991 by MNDT (GOOD)
RECOVERY NOTE BY MN DEPT OF TRANSP 1991 (DKH) THE MARK WAS RECOVERED IN GOOD CONDITION AS DESCRIBED. RM 2 IS DESTROYED AND RM 3 WAS FOUND TIPPED. A WHOLE NEW DESCRIPTION FOLLOWS. THE MARK IS 7 MI (11.3 KM) WNW OF HARDWICK, 463 FT (141.1 M) EAST OF THE SE COR 1/4 SECTION, 29.5 FT (9.0 M) NORTH OF SECTION LINE RD, 20 FT (6.1 M) EAST OF AN ENT, 2.3 FT (0.7 M) SOUTH OF N-S R/W FENCE, AND 2.0 FT (0.6 M) SOUTH OF A WIT POST.

Control Text

  • The horizontal coordinates were established by classical geodetic methods and adjusted by the National Geodetic Survey in March 1999.
  • The orthometric height was determined by GPS observations and a high-resolution geoid model.
  • The X, Y, and Z were computed from the position and the ellipsoidal ht.
  • The Laplace correction was computed from DEFLEC99 derived deflections.
  • The ellipsoidal height was determined by GPS observations and is referenced to NAD 83.
  • The geoid height was determined by GEOID99.

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