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Details for Benchmark: LC0704

N 40° 35.609 W 088° 51.273 (NAD 83)

Altitude: 780.07

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

Location:
In MCLEAN county, IL View Original Datasheet
Designation:
REEK
Marker Type:
traverse station 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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Guarded by lots of ants. Had to snap quick picture.

[Photos:]
photo2009-08-22_16-26-41

I THINK this is the correct one. Cords were N40.35.604 W088.51.274.

[Photos:]
photoLC0704

Documented History (by the NGS)

01/01/1960 by CGS (MONUMENTED)
DESCRIBED BY COAST AND GEODETIC SURVEY 1960 (CAA) THE STATION IS LOCATED ABOUT 3-1/2 MILES NORTHEAST OF TOWANDA, ABOUT 5 MILES SOUTHWEST OF LEXINGTON AND ON THE EAST SIDE OF U.S. HIGHWAY 66. TO REACH THE STATION FROM THE CROSSROADS AT THE TEXACO FILLING STATION ON U.S. HIGHWAY 66 IN TOWANDA, GO NORTHEAST ON U.S. HIGHWAY 66 FOR 3.3 MILES TO A CROSSROAD, CONTINUE ON FOR 0.05 MILE TO THE STATION ON THE RIGHT AS DESCRIBED. STATION MARK, A STANDARD TRAVERSE DISK STAMPED REEK 1960, IS SET IN THE TOP OF A 12 INCH SQUARE CONCRETE POST WHICH IS FLUSH WITH THE SURFACE OF THE GROUND. THE MARK IS 74 FEET SOUTHWEST OF A TELEPHONE POLE WITH A TRIANGLE BLAZE, 69 FEET SOUTHEAST OF THE CENTER-LINE OF THE NORTH BOUND LANE OF U.S. HIGHWAY 66, 40 FEET NORTHWEST OF THE WEST RAIL OF THE TRACKS AND 34 FEET NORTHEAST OF A WITNESS POST. REFERENCE MARK NUMBER 1, A STANDARD REFERENCE DISK STAMPED REEK NO 1 1960, IS SET IN THE TOP OF A 12 INCH SQUARE CONCRETE POST WHICH IS FLUSH WITH THE SURFACE OF THE GROUND. THE MARK IS 91 FEET SOUTHEAST OF THE CENTER-LINE OF THE NORTH BOUND LANE OF U.S. HIGHWAY 66, 40 FEET EAST OF A WITNESS POST AND 17 FEET NORTHWEST OF THE WEST RAIL OF THE TRACKS. REFERENCE MARK NUMBER 2, A STANDARD REFERENCE DISK STAMPED REEK NO 2 1960, IS SET IN THE TOP OF A 12 INCH SQUARE CONCRETE POST WHICH IS FLUSH WITH THE SURFACE OF THE GROUND. THE MARK IS 70 FEET SOUTHEAST OF THE CENTER LINE OF THE NORTH BOUND LANE OF U.S. HIGHWAY 66, 39 FEET NORTHWEST OF THE WEST RAIL OF THE TRACKS AND 2 FEET NORTHEAST OF A WITNESS POST AND A TELEPHONE POLE. AZIMUTH MARK, A STANDARD AZIMUTH DISK STAMPED REEK 1960, IS SET IN THE TOP OF A 12 INCH SQUARE CONCRETE POST WHICH PROJECTS 2 INCHES. THE MARK IS 74.5 FEET EAST OF A WHISTLE POST, 32 FEET SOUTHEAST OF THE EAST RAIL OF THE TRACKS, 2.7 FEET NORTHWEST OF A FENCELINE AND 2.9 FEET WEST OF A WITNESS POST. TO REACH THE AZIMUTH MARK FROM THE STATION, GO NORTHEAST ON U.S. HIGHWAY 66 FOR 0.25 MILE TO THE AZIMUTH MARK ON THE RIGHT (EAST) SIDE OF THE RAILROAD AS DESCRIBED. HEIGHT OF LIGHT ABOVE STATION MARK 2.98 METERS.
01/01/1961 by NGS (GOOD)
RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1961 3.1 MI NE FROM TOWANDA. ABOUT 0.05 MILE SOUTHWEST ALONG MAIN STREET FROM THE GULF MOBILE AND OHIO RAILROAD STATION IN TOWANDA, THENCE 0.2 MILE WEST ALONG MONROE STREET, THENCE 2.85 MILES NORTHEAST ALONG U.S. HIGHWAY 66 AT JUNCTION OF A NORTH AND SOUTH GRAVELED CROSSROAD, 69 FEET SOUTHEAST OF THE NORTHBOUND LANE OF U.S. HIGHWAY 66, 40 FEET NORTHWEST OF THE NORTHWEST RAIL OF THE SOUTHBOUND TRACK, 292 FEET NORTHEAST OF THE CENTERLINE OF THE NORTH-SOUTH GRAVEL ROAD, 34 FEET NORTHEAST OF A TELEGRAPH POLE, 33.6 FEET NORTHEAST OF A WITNESS POST, 2 FEET ABOVE THE LEVEL OF THE HIGHWAY, AND SET IN THE TOP OF A CONCRETE POST FLUSH WITH THE GROUND.
01/01/1968 by CGS (GOOD)
RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1968 (ARS) RECOVERED IN GOOD CONDITION AS DESCRIBED.

Control Text

  • The horizontal coordinates were established by classical geodetic methods and adjusted by the National Geodetic Survey in October 1999.
  • The orthometric height was determined by differential leveling and adjusted by the National Geodetic Survey in June 1991.
  • The Laplace correction was computed from DEFLEC99 derived deflections.
  • 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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