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Details for Benchmark: FC1634

N 35° 01.950 W 085° 17.867 (NAD 83)

Altitude: 661.65

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

Location:
In HAMILTON county, TN View Original Datasheet
Designation:
X 294
Marker Type:
bench mark disk
Setting:
abutments and piers of large bridges
Stability:
Probably hold position/elevation well.

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Saw this benchmark while caching in the area.

[Photos:]
photoFC1634

In town on an airline layover and staying at the Chattanoogan Inn. I had the day off so I decided to get out today and explore the area. Walked to the National Cemetery and found this BM on the way. Mark is in great condition.

[Photos:]
photoBenchmark X294

Found as described, easily visible from the car.

[Photos:]
photoarea view

Enjoyed finding this one because it was near train tracks, set in one of the concrete pillars.

[Photos:]
photoFC1634
photoFC1634 b

Still there and looking good

[Photos:]
photoC:\Documents and Settings\Phillip\My Documents\My
photoC:\Documents and Settings\Phillip\My Documents\My

Found in good shape while Geocaching

[Photos:]
photoX294
photow/Gpsr
photoView from Benchmark

driven past this many times but never noticed it until I saw it on here. Went for a drive and sure enough it there!

As described.

[Photos:]
photoFC1634 BM
N 35° 01.950 W 085° 17.865

Recovered as described. Stamped X294 1983.

[Photos:]
photoFC1634

Documented History (by the NGS)

01/01/1983 by NGS (MONUMENTED)
DESCRIBED BY NATIONAL GEODETIC SURVEY 1983 IN CHATTANOOGA. IN CHATTANOOGA, 0.2 KM (0.1 MI) NORTHWEST ALONG MAIN STREET FROM THE JUNCTION OF EAST MAIN STREET AND CENTRAL AVENUE, SET VERTICALLY IN THE SOUTHEAST FACE OF THE MASSIVE MIDDLE CONCRETE PIER OF THE RAILROAD OVERPASS OVER MAIN STREET, 6.24 METERS (20.5 FT) SOUTHWEST OF THE CENTERLINE OF MAIN STREET (WESTBOUND), AND 14.63 METERS (48.0 FT) NORTH OF A POWERLINE POLE. THE MARK IS 1.3 M ABOVE WALKWAY.
01/17/1998 by USPSQD (GOOD)
RECOVERY NOTE BY US POWER SQUADRON 1998 RECOVERED IN GOOD CONDITION.

Control Text

  • The horizontal coordinates were scaled from a topographic map and have an estimated accuracy of +/- 6 seconds.
  • The orthometric height was determined by differential leveling and adjusted by the National Geodetic Survey in June 1991.
  • The geoid height was determined by GEOID99.
  • The dynamic height is computed by dividing the NAVD 88 geopotential number by the normal gravity value computed on the Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45 degrees latitude (g = 980.6199 gals.).
  • The modeled gravity was interpolated from observed gravity values.

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