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Details for Benchmark: LC1010

N 40° 27.002 W 089° 00.854 (NAD 83)

Altitude: 852.15

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

Location:
In MCLEAN county, IL View Original Datasheet
Designation:
SUNNY
Marker Type:
triangulation 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

Must Read!

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As close as I can tell, this is the reset of the SUNNY after the road was enlarged just a couple years ago. cords were N40.26.987 W089.00.838

[Photos:]
photoLC1010
Bloomington, IL

Documented History (by the NGS)

01/01/1959 by CGS (MONUMENTED)
DESCRIBED BY COAST AND GEODETIC SURVEY 1959 (RWE) THE STATION IS LOCATED IN THE SOUTHWEST CORNER OF BLOOMINGTON AND ON THE SOUTHEAST SIDE OF U.S. HIGHWAY 66. TO REACH THE STATION FROM THE JUNCTION OF U.S. HIGHWAYS 150 AND 66 IN THE SOUTHEAST PART OF BLOOMINGTON, GO WEST AND SOUTHWEST ON U.S. HIGHWAY 66 FOR 2.5 MILES TO THE WJBS RADIO MAST ON LEFT, CONTINUE SOUTHWEST ON U.S. HIGHWAY 66 FOR 0.2 MILE TO THE STATION ON THE LEFT AS DESCRIBED. THE STATION IS A STANDARD DISK SET IN TOP OF A 12 X 12 INCH CONCRETE POST SET FLUSH AND THE DISK IS STAMPED SUNNY 1959. IT IS 85 FEET NORTHWEST OF THE APPROXIMATE CENTER OF ROAD, 75 FEET EAST-SOUTHEAST OF THE CENTER OF THE NORTHEAST BOUND LANE OF U.S. HIGHWAY 66, 55 FEET NORTHWEST OF POWER LINE POLE AND 53.8 FEET NORTH-NORTHWEST OF THE WITNESS POST. REFERENCE MARK NO. 1 IS 72.6 FEET NORTH-NORTHEAST OF POWER LINE POLE, 66.2 FEET NORTH-NORTHEAST OF WITNESS POST AND 31.5 FEET WEST-SOUTHWEST OF APPROXIMATE CENTER OF ROAD. THE MARK IS A STANDARD REFERENCE MARK DISK SET IN TOP OF A 12 X 12 INCH CONCRETE POST SET FLUSH AND THE DISK IS STAMPED SUNNY NO. 1 1959. REFERENCE MARK NO. 2 IS 59.3 FEET SOUTHWEST OF WITNESS POST, 52.8 FEET SOUTHWEST OF POWER LINE POLE AND 26 FEET NORTHWEST OF APPROXIMATE CENTER OF ROAD. THE MARK IS A STANDARD REFERENCE MARK DISK SET IN TOP OF A 12 X 12 INCH CONCRETE POST SET FLUSH AND THE DISK IS STAMPED SUNNY NO. 2 1959. AZIMUTH MARK IS 58.9 FEET SOUTHEAST OF THE NORTHEAST BOUND LANE OF U.S. HIGHWAY 66, 129 FEET WEST OF POWER LINE POLE AND 1.9 FEET SOUTH-SOUTHWEST OF WITNESS POST. THE MARK IS A STANDARD AZIMUTH MARK DISK SET IN TOP OF A 12 X 12 INCH CONCRETE POST SET FLUSH AND THE DISK IS STAMPED SUNNY 1959. HEIGHT OF LIGHT ABOVE STATION MARK 36.40 METERS.
01/01/1959 by CGS (GOOD)
RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1959 (GWM) THE STATION AND ALL MARKS WERE RECOVERED AND FOUND IN GOOD CONDITION AS DESCRIBED. THE DISTANCES AND DIRECTIONS TO REFERENCE MARK 1 AND THE AZIMUTH MARK CHECKED. A DIFFERENCE OF 2 MINUTES AND 13 SECONDS WAS FOUND IN THE DIRECTION TO REFERENCE MARK 2, BUT THE DISTANCE CHECKED. THE DESCRIPTION IS ADEQUATE. THE TO REACH IS ALSO ADEQUATE. THE DESCRIPTION AND THE TO REACH FOLLOWS-- THE STATION IS LOCATED ON THE SOUTHEAST SIDE OF U.S. HIGHWAY 66 AND IS IN THE SOUTHWEST CORNER OF BLOOMINGTON. TO REACH THE STATION FROM THE JUNCTION OF U.S. HIGHWAYS 150 AND 66 IN THE SOUTHEAST PART OF BLOOMINGTON, GO WEST AND SOUTHWEST ON HIGHWAY 66 FOR 2.5 MILES TO WJBC RADIO MAST ON THE LEFT. CONTINUE SOUTHWEST ON HIGHWAY 66 FOR 0.2 MILE TO THE STATION ON THE LEFT AS DESCRIBED. A TO REACH FOR THE AZIMUTH MARK FOLLOWS-- TO REACH THE AZIMUTH MARK FROM THE STATION, GO NORTHEAST ON U.S. HIGHWAY 66 FOR 0.15 MILE TO THE MARK ON THE RIGHT. THE STATION IS A STANDARD DISK SET IN THE TOP OF A 12 X 12 INCH SQUARE CONCRETE POST THAT IS FLUSH WITH THE GROUND AND THE DISK IS STAMPED SUNNY 1959. IT IS 85 FEET NORTHWEST OF THE APPROXIMATE CENTER OF A PAVED ROAD, 75 FEET EAST-SOUTHEAST OF THE CENTERLINE OF THE NORTHEAST BOUND LANE OF U.S. HIGHWAY 66, 55 FEET NORTHWEST OF A POWER POLE AND 54 FEET NORTH-NORTHWEST OF A WITNESS POST. REFERENCE MARK 1 IS 72.6 FEET NORTH-NORTHEAST OF POWER LINE POLE, 66 FEET NORTH-NORTHEAST OF THE WITNESS POST AND 31.5 FEET WEST-NORTHWEST OF THE APPROXIMATE CENTER OF THE PAVED ROAD. THE DISK IS A STANDARD REFERENCE MARK DISK SET IN THE TOP OF A 12 X 12 INCH SQUARE CONCRETE POST THAT IS FLUSH WITH THE GROUND AND THE DISK IS STAMPED SUNNY NO 1 1959. REFERENCE MARK 2 IS 59 FEET SOUTHWEST OF THE WITNESS POST, 53 FEET SOUTHWEST OF THE POWER LINE POLE AND IS 26 FEET NORTHWEST OF THE APPROXIMATE CENTER OF THE PAVED ROAD. THE DISK IS A STANDARD REFERENCE MARK DISK SET IN THE TOP OF A 12 X 12 INCH SQUARE CONCRETE POST THAT IS FLUSH WITH THE GROUND AND THE DISK IS STAMPED SUNNY NO 2 1959. THE AZIMUTH MARK IS 59 FEET SOUTHEAST OF THE NORTHEAST BOUND LANE OF HIGHWAY 66, 129 FEET WEST OF A POWER LINE POLE AND 2 FEET SOUTH-SOUTHWEST OF A WITNESS POST. THE DISK IS A STANDARD AZIMUTH MARK DISK SET IN THE TOP OF A 12 X 12 INCH SQUARE CONCRETE POST THAT IS FLUSH WITH THE GROUND AND THE DISK IS STAMPED SUNNY 1959. HEIGHT OF LIGHT ABOVE STATION MARK 34 METERS.
01/01/1960 by CGS (GOOD)
RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1960 (RCJ) THE STATION WAS RECOVERED AS DESCRIBED AND ALL MARKS WERE FOUND IN GOOD CONDITION. A DIFFERENCE IN THE DIRECTION TO REFERENCE MARK 2 WAS FOUND. THE DISTANCE TO ALL MARKS CHECKED.
01/01/1960 by NGS (GOOD)
RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1960 2.1 MI SW FROM BLOOMINGTON. ABOUT 2.1 MILES WEST AND SOUTHWEST ALONG U.S. HIGHWAY 66 FROM THE OVERPASS OVER THE ILLINOIS CENTRAL RAILROAD IN THE SOUTH PART OF BLOOMINGTON, ABOUT 0.1 MILE NORTHEAST OF A HIGHWAY CROSS-OVER, 75 1/2 FEET SOUTHEAST OF THE CENTERLINE OF THE NORTHEAST BOUND LANE OF THE HIGHWAY, 85 FEET NORTHWEST OF THE CENTER LINE OF THE OLD HIGHWAY, 55 FEET NORTHWEST OF THE FOURTH POWER POLE NORTHEAST OF THE CROSSOVER, 159 FEET NORTHWEST AND ACROSS THE OLD HIGHWAY FROM THE NORTH-NORTHEAST CORNER OF A PERMASTONE HOME, 54.0 FEET NORTHWEST OF A METAL WITNESS POST, ABOUT 1 FOOT BELOW THE LEVEL OF THE OLD HIGHWAY, SET IN THE TOP OF A CONCRETE POST 3 INCHES UNDERGROUND.

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. WARNING-Repeat measurements at this control monument indicate possible vertical movement.
  • 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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