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Details for Benchmark: LC1013

N 40° 26.033 W 089° 02.067 (NAD 83)

Altitude: 752.4

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

Location:
In MCLEAN county, IL View Original Datasheet
Designation:
G 246 RESET 1961
Marker Type:
bench mark disk
Setting:
light structures
Stability:
Mark of questionable or unknown stability.

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Still here of course and easier to find this time of year than it will be when the vegetation gets growing good in the area.

[Photos:]
photoLC1013 G 246 Reset 1960

This one is still here of course and easy to find.

Got this one just at dark. My cords were N40.26.049 W089.o2.065

[Photos:]
photoLC1013
Bloomington, IL

Documented History (by the NGS)

01/01/1961 by CGS (MONUMENTED)
DESCRIBED BY COAST AND GEODETIC SURVEY 1961 3.2 MI SW FROM BLOOMINGTON. ABOUT 2.85 MILES SOUTHWEST ALONG U.S. HIGHWAY 66 FROM ITS JUNCTION WITH U.S. HIGHWAY 51 IN THE SOUTH PART OF BLOOMINGTON, THENCE 0.10 MILE WEST ALONG AN ASPHALT PAVED ROAD, THENCE 0.3 MILE NORTH ALONG THE GULF MOBILE AND OHIO RAILROAD, SET IN TOP OF THE SOUTH END OF THE EAST HEADWALL OF AN 8 FOOT CONCRETE BOX CULVERT UNDER THE RAILROAD, 60 FEET EAST OF THE EAST RAIL, AND ABOUT 25 FEET BELOW THE LEVEL OF THE TRACK.

Control Text

  • The horizontal coordinates were scaled from a topographic map and have an estimated accuracy of +/- 6 seconds.
  • The NAVD 88 height was computed by applying the VERTCON shift value to the NGVD 29 height (displayed under SUPERSEDED SURVEY CONTROL.) The vertical order pertains to the superseded datum.
  • The geoid height was determined by GEOID99.

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