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Details for Benchmark: GT0945

N 36° 19.467 W 119° 38.217 (NAD 83)

Altitude: 249.2

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

Location:
In KINGS county, CA View Original Datasheet
Designation:
M 1204
Marker Type:
bench mark disk
Setting:
massive structures
Stability:
Probably hold position/elevation well.

Must Read!

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Again we used Buckmeadows' coordinates (what would we do without him?) to find this very easy one. If the traffic was slow, you could possibly stop on the bridge and snap a picture of it without getting out of your car.

Recovered in Good condition. GPS coordinates recorded as, N 36º 19.467 W 119º 38.207. Altitude 229ft. Disk is stamped, M 1204 1969. Digital photos available.

[Photos:]
photoB11-2
M1204 W/GPS
N 36° 19.466 W 119° 38.207

Found it at 16:20, 31 Dec. 2002

Found it as described and in good condition.

Original coordinates (NAD83) off by about 50 feet when in WGS84 mode. WGS84 coordinates found by 2 minute occupation with 6 strong satellites and 1 intermittent WAAS satellite.

Keep on Caching!
- Kewaneh

[Photos:]
photoGT0945-1
The Magellan and the benchmark.
photoGT0945-2
Benchmark detail.
photoGT0945-3
The benchmark is in the top of the close end of the guardrail. The GPSr can be seen lying next to it.

Here is another one of those ones that you can drive by everyday and unless you know that it is there you would never guess there is a benchmark located there.

[Photos:]
photoThe benchmark in the guard rail
The north end of the east guard rail
photoThe area of the benchmark
The benchmark is in the top of the guard rail in the foreground of the picture.

Documented History (by the NGS)

01/01/1969 by CGS (MONUMENTED)
DESCRIBED BY COAST AND GEODETIC SURVEY 1969 0.7 MI E FROM HANFORD. 0.5 MILE EAST ALONG 7TH STREET AND LACEY BOULEVARD FROM THE JUSTICE COURT BUILDING (FORMER POST OFFICE) AT HANFORD, THENCE 0.2 MILE SOUTH ALONG 10TH AVENUE, AT AN OVERPASS OVER STATE HIGHWAY 198, IN THE TOP AND 1.1 FEET SOUTH OF THE NORTH END OF THE EAST CONCRETE GUARDRAIL OF THE OVERPASS, AND ABOUT 3 FEET HIGHER THAN THE AVENUE. SECTION 31, T 18S, R21E

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  • The NAVD 88 height was computed by applying the VERTCON shift value to the NGVD 29 height (displayed under SUPERSEDED SURVEY CONTROL.)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.