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Details for Benchmark: FH0928

N 35° 23.383 W 094° 25.733 (NAD 83)

Altitude: 446.36

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

Location:
In SEBASTIAN county, AR View Original Datasheet
Designation:
A 298
Marker Type:
vertical control disk
Setting:
pavements (street, sidewalk, curb, apron, etc.)
Stability:
Mark of questionable or unknown stability.

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did the nearby Earthcache then found this BM disk along the busy road!

[Photos:]
photo
photo

Found this benchmark today during geocaching.
TFTBM says H_M_A @ 2017-05-28 @ 11:30 o'clock

[Photos:]
photoFH0928 not in best condition but still alive

Found it tonight after dinner. It's still there and in good shape.

Found as described. This one is badly damaged now.

[Photos:]
photoFH0928

Easy find

This entry was edited by Benchmark Blasterz on Monday, 01 December 2014 at 20:14:29 UTC.

[Photos:]
photoLoc of FH0928 A 298, Ft Smith AR

Found it its still there.

Out doing a little benchmarking with BasicPoke and grabbed this one.

Dodged early morning traffic and found this one.

[Photos:]
photoA 298

Found as described while in spending time in downtown Ft.Smith

Found with no problem, I bet the oncoming drivers were wondering why I was taking taking closeup pictures of the pavement.

[Photos:]
photoFH0928 closeup
photoFH0928 scene
N 35° 23.394 W 094° 25.756

There are benchmarks at either end of the Garrison Avenue bridge. This one is located on the east end of the bridge, accessible from the eastbound pedestrian walkway. The disk is on the shoulder of the lane of traffic, across the wall from the pedestrian lane. The surface of the disk has been damaged, as if from a spinning or skidding tire. The coordinates associated with this post are derived from GoogleEarth.

[Photos:]
photoFH0928 Close-up
photoFH0928 Setting
photoFH0928 Scene

Found with SecondGunman

Found this benchmark, but taking a picture seemed a bit suicidal this busy Saturday morning.

Found as described.

Found with the coords supplied by Cardinal.

[Photos:]
photoA 298, Fort Smith, AR
photoA 298, looking east, Fort Smith, AR
photoA 298, looking west, Fort Smith, AR
N 35° 23.394 W 094° 25.757

This one is just as described. I don't know how it was ever monumented or how it can ever be used due to the high speeds of traffic that pass so close to it.

[Photos:]
photoA 298 in Ft. Smith, AR.
photoA 298 in Ft. Smith, AR. busy background.

Easy find, just look in the road. Be careful, traffic moves FAST. Sorry, no setting photo, but I had to lean out into traffic to get the close up!

[Photos:]
photoClose up FH0928 (A 298) Fort Smith, AR (barely)

My daughter and I logged this one together. It was just where the description said it was.

Description is accurate. Easy Find. Be careful lots of traffic.

OzarkMtnGhost

Documented History (by the NGS)

01/01/1984 by NGS (MONUMENTED)
DESCRIBED BY NATIONAL GEODETIC SURVEY 1984 IN FORT SMITH. IN FORT SMITH, LOCATED AT THE SOUTHEAST END OF THE ARKANSAS RIVER BRIDGE AND SOUTH 2ND STREET, AT THE SOUTHEAST BOUND LANES OF U.S. HIGHWAY 64, SET FLUSH WITH THE PAVEMENT, 37.18 METERS (122.0 FT) NORTHWEST OF THE CENTER OF SOUTH 2ND STREET, 7.07 METERS (23.2 FT) NORTHWEST OF THE FORT SMITH CITY LIMIT SIGN POST, 4.57 METERS (15.0 FT) SOUTHWEST OF THE CENTERLINE OF THE SOUTHEASTBOUND LANES, 1.43 METERS (4.7 FT) SOUTHEAST OF THE SOUTHWEST CORNER OF A STEEL GRATE DRAIN, AND 0.21 METERS (0.7 FT) NORTHEAST OF THE CONCRETE RAILING. THE MARK IS ABOVE LEVEL WITH SOUTHEASTBOUND LANES.
01/01/1988 by USPSQD (GOOD)
RECOVERY NOTE BY US POWER SQUADRON 1988 (MS) RECOVERED IN GOOD CONDITION.
01/01/1989 by USPSQD (GOOD)
RECOVERY NOTE BY US POWER SQUADRON 1989 (MS) RECOVERED IN GOOD CONDITION.
11/01/1989 by NGS (GOOD)
RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1989 RECOVERED IN GOOD CONDITION.
01/01/1990 by USPSQD (GOOD)
RECOVERY NOTE BY US POWER SQUADRON 1990 (TWS) 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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