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Details for Benchmark: AA7385

N 38° 50.833 W 090° 31.283 (NAD 83)

Altitude: 780.1

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

Location:
In ST FRANCOIS county, MO View Original Datasheet
Designation:
W 54 RESET
Marker Type:
vertical control disk
Setting:
mat foundation, concrete slab, etc.
Stability:
May hold, but of type commonly subject to surface motion.

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N 37° 50.850 W 090° 31.321

The published latitude degree value appears to be one (1) degree
North of the benchmark position. The lat. / lon. I furnish are from a quick reading of my handheld
recreational GPS (Magellan Meridian Gold). Thank you rogbarn for doing the research and the math.

The school sign not there, base for sign and PID AA7385
(W 54 RESET 1994) are there. The fence has been removed,
flagpole is still there.
Another benchmark (W 54 RESET 1996 -- maybe MODNR PID 187306) is in
the concrete base for the flagpole. Benchmark W 54 RESET 1996
is approximately 16 inches West of the flagpole and flush with
the top of the concret base.

[Photos:]
photoAA7385 (W 54 RESET) St. Francois county, MO
photoSign base & flagpole
showing both of the benchmarks, W54 RESET 1994 and W 54 RESET 1996
photoview of flagpole and school
The base for the sign is to the right of the flagpole.
photoW 54 RESET 1996
The benchmark in the flagpole base. The lat. / lon. are from a quick reading of my handheld recreational GPS (Magellan Meridian Gold).

Documented History (by the NGS)

1/1/1994 by MODNR (MONUMENTED)
DESCRIBED BY MO DEPT OF NAT RES 1994 (BDC) THE MARK IS LOCATED IN THE CITY OF PARK HILLS, ST. FRANCOIS COUNTY, NEAR THE INTERSECTION OF REBEL STREET AND HIGH STREET IN THE FRONT LAWN OF THE HIGH SCHOOL. IT IS ON AN 2.7 FT (0.8 M) BY 8 FT (2.4 M) CONCRETE BASE FOR THE SCHOOL SIGN, 15.5 FT (4.7 M) EAST OF THE FLAG POLE, 30.6 FT (9.3 M) NW FROM THE NE CORNER OF A CHAIN LINK FENCE, 26.3 FT (8.0 M) NW FROM THE NW CORNER OF THE CHAIN LINK FENCE.

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  • The NAVD 88 height was computed by applying the VERTCON shift value to the NGVD 29 height (displayed under SUPERSEDED SURVEY CONTROL.) The vertical order pertains to the superseded datum.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