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Details for Benchmark: LC1793

N 40° 07.651 W 088° 41.212 (NAD 83)

Altitude: 703

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

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

Reference Points

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This one is still here.

[Photos:]
photoLC1793 Deland

I'm confused with this one but think the accompany pic is the correct one.

[Photos:]
photodeland3471
photodeland RM3

Documented History (by the NGS)

01/01/1934 by CGS (MONUMENTED)
DESCRIBED BY COAST AND GEODETIC SURVEY 1934 (CAS) STATION IS 2.3 MILES BY ROAD DUE W OF DELAND AND 2.9 MILES E OF THE INTERSECTION OF STATE HIGHWAYS 120 AND 48, ON THE N SIDE OF STATE HIGHWAY 120, IN THE SW CORNER OF A FIELD OWNED BY SMITH WISEGARVER, 108 PACES E OF A N-S ROAD, 56 FEET N OF THE CENTER LINE OF STATE HIGHWAY 120, 59 FEET E OF THE SE CORNER OF A HOUSE, 54 FEET NE OF THE MOST EASTERLY TREE IN THE HOUSE YARD, AND 12 INCHES UNDERGROUND. SURFACE, UNDERGROUND, REFERENCE AND AZIMUTH MARKS ARE STANDARD BRONZE DISKS SET IN CONCRETE. REFERENCE MARK NO. 1 IS E OF THE STATION, IN THE N RIGHT-OF-WAY FENCE LINE OF STATE HIGHWAY 120, 36 FEET W OF A TELEPHONE POLE, 246.10 FEET SE OF REFERENCE MARK NO. 2, AND PROJECTS 3 INCHES. REFERENCE MARK NO. 2 IS N OF THE STATION, AT THE NE CORNER OF THE HOUSE LOT, AND PROJECTS 3 INCHES. AZIMUTH MARK IS E OF THE STATION, AT THE SE CORNER OF FIELD IN WHICH THE STATION IS LOCATED, 1 FOOT N OF THE N RIGHT-OF-WAY FENCE OF STATE HIGHWAY 120, AND PROJECTS 1 INCH. 90-FOOT TOWER WILL CLEAR ALL LINES EXCEPT TO RYAN, WHICH REQUIRES 103 FEET. NO SUITABLE OBJECTS VISIBLE FROM THE GROUND.
01/01/1936 by USGS (GOOD)
RECOVERY NOTE BY US GEOLOGICAL SURVEY 1936 EXTRACT FROM LETTER DATED JUNE 21, 1936 FROM S.R. ARCHER TO R.M. WILSON, BOTH OF THE U.S. GEOLOGICAL SURVEY. THE FOLLOWING ELEVATIONS ARE WITHIN TWO-TENTHS OF BEING CORRECT, BASED UPON THEIR PRECISE LINE AT CLINTON, ILLINOIS. ALEXANDER, PIATT CO., ILL. -759.6 DELAND NO. 2*, PIATT CO., ILL. -708.0 LUTTRELL, DEWITT CO., ILL. -765.9 *REFERENCE MARK
01/01/1939 by CGS (GOOD)
RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1939 (APR) ALL MARKS WERE RECOVERED IN GOOD CONDITION. THE DISTANCE TO REFERENCE MARK 2 CHECKED, WHILE THE DISTANCE TO REFERENCE MARK 1 WAS FOUND TO BE 58.378 M., 191.53 FT., COMPARED WITH ORIGINAL MEASUREMENT OF 191.49 FT. THE HOUSE AND TREES MENTIONED IN ORIGINAL DESCRIPTION HAVE BEEN REMOVED, AND THE AREA PUT IN CULTIVATION. THIS LEFT REFERENCE MARK 2 IN A PLANTED FIELD, MAKING IT NECESSARY TO ESTABLISH A NEW MARK AND DESTROY THE OLD ONE. A COMPLETE NEW DESCRIPTION FOLLOWS. STATION IS ABOUT 25 MI. W OF CHAMPAIGN, 2.3 MI. W AND 0.4 MI. N OF THE CENTER OF DELAND, 2.9 MI. E OF THE INTERSECTION OF ILLINOIS STATE ROUTES 48 AND 10, ON THE N SIDE OF STATE ROUTE 10, IN THE SW CORNER OF A FIELD OWNED BY MR. SMITH WISEGARVER. THE FARM IS NOW TENANTED BY MR. H.J. EASTON, WHO LIVES ABOUT 0.5 MI. E-NE OF THE STATION. STATION IS IN A CULTIVATED FIELD, 55 FT. N OF THE CENTERLINE OF STATE ROUTE 10, 15.3 FT. N OF A WIRE FENCE, 319 FT. E OF THE CENTERLINE OF A N-AND-S GRAVEL ROAD, 135 FT. E BY S OF THE CENTER OF A WINDMILL. MARK IS BELOW THE SURFACE OF THE GROUND. THE DISK IS STAMPED DELAND 1934. REFERENCE MARK 1 IS E OF THE STATION, IN THE N RIGHT-OF-WAY OF ROUTE 10, 1 FT. N OF A WIRE FENCE, 41 FT. N OF THE CENTERLINE OF ROUTE 10, 38 FT. W OF A TELEPHONE POLE, AND 510 FT. E OF THE CENTERLINE OF A N-AND-S GRAVEL ROAD. THE MARK IS DESCRIBED AND PROTRUDES 3 IN. THE DISK IS STAMPED DELAND NO 1 1934. THE NEW REFERENCE MARK 2 ESTABLISHED BY THIS PARTY IS S-SE OF THE STATION, ON THE S RIGHT-OF-WAY OF ROUTE 10, 1.5 FT. N OF A WIRE FENCE, 38.5 FT. S OF THE CENTERLINE OF ROUTE 10, AND 363 FT. E OF THE CENTERLINE OF A N-AND-S GRAVEL ROAD. THE MARK IS DESCRIBED AND PROTRUDES 1 IN. THE DISK IS STAMPED DELAND NO 2 1939. THE AZIMUTH MARK IS E OF THE STATION, IN THE N RIGHT-OF-WAY OF STATE ROUTE 10, 1.5 FT. N OF A WIRE FENCE, 2 FT. NW OF THE W END OF A WOODEN GATE, 8 FT. N OF THE NW CORNER OF A CONCRETE CULVERT, AND 41.5 FT. N OF THE CENTERLINE OF STATE ROUTE 10. THE MARK IS DESCRIBED AND PROTRUDES 1 IN. THE DISK IS STAMPED DELAND AZIMUTH 1934. A 90-FT. TOWER CLEARED ALL 1934 LINES EXCEPT TO RYAN WHICH REQUIRED 103 FT.
01/01/1970 by LOCENG (GOOD)
RECOVERY NOTE BY LOCAL ENGINEER (INDIVIDUAL OR FIRM) 1970 (CSD) STATION RECOVERED BY CHARLES S DANNER ENGINEERING. DELAND 1934-DESCRIPTION NO GOOD. SEE ENCLOSED TIE SHEET DELAND AZIMUTH 1934-DESCRIPTION NO GOOD. SEE ENCLOSED TIE SHEET NO REFERENCE MARKS SEARCHED FOR.
01/01/1971 by NGS (GOOD)
RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1971 (LFS) ALL MARKS WERE RECOVERED AND FOUND IN GOOD CONDITION. THE REFERENCE MARK 1 WAS FOUND PROJECTING IN SCHOOL LAWN AND WAS DESTROYED AFTER A REFERENCE MARK 3 WAS SET. THE STATION MARK WAS ALSO FOUND PROJECTING AND WAS LOWERED HOLDING THE ORIGINAL POINT BY 0.48 OF A FOOT. THE DISTANCE AND DIRECTIONS TO THE MARKS CHECKED. A NEW DESCRIPTION FOLLOWS-- THE STATION IS LOCATED IN THE FRONT LAWN OF THE DELAND-WELDON HIGH SCHOOL, 36 FEET NORTHWEST OF AN UNDERGROUND CABLE BOX, 55 FEET NORTH OF THE CENTERLINE OF STATE HIGHWAY 10, 76 FEET SOUTHWEST OF FLAGPOLE, 319 FEET EAST OF THE CENTERLINE OF NORTH-SOUTH ROAD, 121 FEET EAST OF THE CENTERLINE OF THE WEST DRIVEWAY TO SCHOOL AND 64 FEET SOUTH OF THE SOUTHWEST CORNER OF PAVED PARKING LOT. THE MONUMENT IS FLUSH AND THE DISK IS STAMPED DELAND 1934 1971. TO REACH THE STATION FROM THE JUNCTION OF STATE HIGHWAYS 10 AND 48 (ABOUT 5 MILES WEST OF DELAND), GO EAST ON HIGHWAY 10 FOR 3.0 MILES TO THE SCHOOL AND STATION ON THE LEFT. CONTINUE EAST ON HIGHWAY FOR 0.2 MILE TO THE AZIMUTH MARK ON THE LEFT. REFERENCE MARK 2 IS 39 FEET SOUTH OF THE CENTERLINE OF THE HIGHWAY, 1 FOOT EAST OF A METAL WITNESS POST AND 363 FEET EAST OF THE CENTERLINE OF THE NORTH-SOUTH ROAD. THE MONUMENT IS FLUSH AND THE DISK IS STAMPED DELAND NO 2 1939. REFERENCE MARK 3 IS A STANDARD DISK STAMPED DELAND 1934 NO 3 1971 SET IN A DRILL HOLE IN THE TOP AND SOUTHWEST CORNER OF THE CONCRETE BASE OF THE SCHOOL FLAGPOLE, 10 FEET SOUTH OF THE SOUTH EDGE OF THE PARKING AREA AND 1 FOOT SOUTHWEST OF THE FLAGPOLE. THE AZIMUTH MARK IS 30 FEET EAST OF A FENCE LINE, 8 FEET NORTH OF THE NORTH END OF THE WEST CONCRETE HEADWALL OF FIELD ENTRANCE, 20 FEET NORTHWEST OF THE NORTH END OF THE EAST HEADWALL, 41 FEET NORTH OF THE CENTERLINE OF THE HIGHWAY AND 1 FOOT WEST OF A METAL WITNESS POST. THE MONUMENT IS FLUSH AND THE DISK IS STAMPED DELAND 1934 AZIMUTH. HEIGHT OF LIGHT ABOVE STATION MARK 5 FEET. AIRLINE DISTANCE AND DIRECTION FROM NEAREST TOWN--ABOUT 2-1/2 MILES WEST OF DELAND
01/01/1976 by NGS (GOOD)
RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1976 (LHW) THE STATION WAS RECOVERED AS DESCRIBED IN 1971. DUE TO THE SCHOOL SUPERINTENDENT NOT PERMITTING A TOWER TO BE BUILT OVER DELAND 1934. REFERENCE MARK 4 WAS ESTABLISHED AND OCCUPIED AT THIS TIME. AIRLINE DISTANCE AND DIRECTION FROM NEAREST TOWN--3 MILES WEST OF DELAND.

Control Text

  • The horizontal coordinates were established by classical geodetic methods and adjusted by the National Geodetic Survey in October 1999.
  • The NAVD 88 height was computed by applying the VERTCON shift value to the NGVD 29 height (displayed under SUPERSEDED SURVEY CONTROL.)
  • The Laplace correction was computed from DEFLEC99 derived deflections.
  • The geoid height was determined by GEOID99.

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