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Details for Benchmark: GT0947

N 36° 20.550 W 119° 38.750 (NAD 83)

Altitude: 249.7

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

Location:
In KINGS county, CA View Original Datasheet
Designation:
X 511
Marker Type:
bench mark disk
Setting:
set into the top of a round concrete monument
Stability:
May hold, but of type commonly subject to surface motion.

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We found this mark using Buckmeadows' description and the previous finder's pictures. Very simple find, and mark is in good condition.

Recovered in Good condition. GPS coordinates recorded as, N 36º 20.552 W 119º 38.768. Altitude 229 ft. Disk is stamped, X 511 1955. Digital photos available.

[Photos:]
photoB12-1
X511 W/GPS
N 36° 20.553 W 119° 38.770

Found USC&GS benchmark stamped 'X511 - 1955' at 09:10, February 21, 2009 as described and in good condition. Go to description is adequate. Grangeville Boulevard has been widened and the sidewalk along Douty Street is now monolithic. The mark now rests within the limits of the sidewalk and is adjacent to the curb return at the southwest corner of the intersection.

The mark is 2.5 feet west of the face of curb, 3.5 feet northwest of City Benchmark #29 set in the top of curb, 4 feet north of a street and signal light standard. The described (1955) 4x4 post and walnut tree are gone.

Published NAD83 coordinates are located about 100 feet easterly of the found WGS84 coordinates. WGS84 coordinates for the mark found by 3 minute occupation with 10 strong satellites and 2 WAAS satellites.

  • Kewaneh
[Photos:]
photoGT0947 - Hanford, Kings County, California
Benchmark detail.
photoGT0947 - Hanford, Kings County, California
The benchmark and the GPSr showing the coordinates.
photoGT0947 - Hanford, Kings County, California
Nearby City benchmark #29.
photoGT0947 - Hanford, Kings County, California
View south down Douty Street.
photoGT0947 - Hanford, Kings County, California
View east across Douty Street, down Grangeville Boulevard.
photoGT0947 - Hanford, Kings County, California
View north across Grangeville Boulevard, up Douty Street.
photoGT0947 - Hanford, Kings County, California
View northeast across the intersection toward Hanford High School.

Documented History (by the NGS)

01/01/1955 by CGS (MONUMENTED)
DESCRIBED BY COAST AND GEODETIC SURVEY 1955 AT HANFORD. AT HANFORD, 1.0 MILE NORTH ALONG DOUTY STREET FROM THE POST OFFICE, AT THE INTERSECTION OF GRANGEVILLE BOULEVARD, SOUTHWEST AND ACROSS THE INTERSECTION FROM THE HANFORD HIGH SCHOOL GROUNDS, 43.4 FEET SOUTH OF THE CENTER LINE OF THE BOULEVARD, 5.5 FEET SOUTH OF A 4- BY 4-INCH WOODEN POST SUPPORTING A SIGN SPEED LIMIT 25 MILES, 3.0 FEET WEST OF THE WEST CURB OF THE STREET, 3 FEET NORTH OF A 1-FOOT WALNUT TREE, 2.5 FEET EAST OF THE EAST EDGE OF THE STREET SIDEWALK, FLUSH WITH THE GROUND, AND SET IN THE TOP OF A CONCRETE POST.

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.