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Details for Benchmark: BM0880

N 30° 17.329 W 097° 15.021 (NAD 83)

Altitude: 557

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

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

Reference Points

Must Read!

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Easily found and in good condition. RM2 was found first. Did not search for RM1.

[Photos:]
photoBM0880
photoBM0880 setting
photoBM0880 RM2
photoBM0880 RM2 setting
photoBM0880 Guardian
I kicked over a couple of sheets of plywood to find this baby snake and it's... sibling?
photoBM0880 Guardian
Only size of a large earthworm....
photoBM0880 RM1
For some reason I wrote down that this was BM0867, but on further review, I believe it to be BM0880 RM1.
photoBM0880 RM1 setting

Documented History (by the NGS)

01/01/1967 by CGS (MONUMENTED)
DESCRIBED BY COAST AND GEODETIC SURVEY 1967 (LGB) THE STATION IS LOCATED ABOUT 10 MILES NORTHWEST OF PAIGE, 8 MILES SOUTHEAST OF ELGIN AND 1/2 MILE NORTHWEST OF MC DADE, ON THE NORTH SIDE OF U.S. HIGHWAY 290 ON PROPERTY OWNED BY MR. A.D. KASTNER. TO REACH THE STATION FROM THE JUNCTION OF U.S. HIGHWAY 290 AND LOOP 223 ABOUT 0.5 MILE SOUTH OF MC DADE, GO NORTH-NORTHWEST ON HIGHWAY 290 FOR 0.45 MILE TO A DRIVEWAY ON THE LEFT AND A DRIVEWAY ON THE RIGHT. TURN RIGHT AND GO UPHILL ON DRIVEWAY FOR 0.05 MILE TO THE STATION ON THE LEFT. THE STATION MARK IS A STANDARD DISK STAMPED KASTNER 1967, SET IN TOP OF A ROUND CONCRETE POST 12 INCHES IN DIAMETER AND FLUSH WITH THE SURFACE OF THE GROUND. IT IS 80 FEET NORTH OF THE CENTER OF HIGHWAY 290, 43 FEET EAST OF A POWER POLE AND 38 FEET SOUTH-SOUTHWEST OF THE CENTER OF A DRIVEWAY. REFERENCE MARK NO. 1 IS A STANDARD DISK STAMPED KASTNER NO 1 1967, SET IN TOP OF A ROUND CONCRETE POST 12 INCHES IN DIAMETER AND PROJECTS 2 INCHES ABOVE THE SURFACE OF THE GROUND. IT IS 87 FEET NORTH-NORTHEAST OF THE POWER POLE, 18 FEET NORTH OF THE CENTER OF THE DRIVEWAY AND 1 FOOT SOUTH OF A CORNER FENCE POST. REFERENCE MARK NO. 2 IS A STANDARD DISK STAMPED KASTNER NO 2 1967, SET IN TOP OF A ROUND CONCRETE POST 12 INCHES IN DIAMETER AND PROJECTS 2 INCHES ABOVE THE SURFACE OF THE GROUND. IT IS 77 FEET SOUTH-SOUTHWEST OF THE CENTER OF THE DRIVEWAY, 59 FEET NORTH OF THE CENTER OF HIGHWAY 290 AND 22 FEET WEST OF THE POWER POLE. THE AZIMUTH MARK IS A STANDARD DISK STAMPED KASTNER 1967, SET IN TOP OF A ROUND CONCRETE POST 12 INCHES IN DIAMETER AND PROJECTS 2 INCHES ABOVE THE SURFACE OF THE GROUND. IT IS 65 FEET NORTH OF THE CENTER OF HIGHWAY 290, 5 FEET WEST-SOUTHWEST OF A TELEPHONE POLE AND 2 FEET WEST-SOUTHWEST OF A METAL WITNESS POST. TO REACH THE AZIMUTH MARK FROM THE STATION, GO NORTH-NORTHWEST ON HIGHWAY 290 FOR 0.65 MILE TO THE AZIMUTH MARK ON THE RIGHT. HEIGHT OF LIGHT ABOVE STATION MARK 14.4 METERS.
01/01/1976 by NGS (GOOD)
RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1976 (JDS) THE STATION MARK, REFERENCE MARKS 1, 2, A AND THE AZIMUTH MARK WERE RECOVERED IN GOOD CONDITION AND THE DESCRIPTION IS ADEQUATE. THE DIRECTIONS TO THE MARKS CHECKED BUT A SHORTER DISTANCE OF 0.023 METER TO REFERENCE MARK 2 AND A LONGER DISTANCE OF 0.016 METER TO KASTNER RM A. WAS NOTED. THE STATION MARK WAS USED AS THE ANTENNA SITE FOR GEOCEIVER STATION 51153. AIRLINE DISTANCE AND DIRECTION FROM NEAREST TOWN 1/2 MILE WEST OF MC DADE.
01/01/1986 by (GOOD)
RECOVERED 1986 RECOVERED IN GOOD CONDITION.
07/10/1991 by USPSQD (GOOD)
RECOVERY NOTE BY US POWER SQUADRON 1991 (GGB) RECOVERED IN GOOD CONDITION.

Control Text

  • The horizontal coordinates were established by classical geodetic methods and adjusted by the National Geodetic Survey in February 1996.
  • 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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