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Details for Benchmark: AH6773

N 32° 53.352 W 083° 46.474 (NAD 83)

Altitude: 510

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

Location:
In BIBB county, GA View Original Datasheet
Designation:
GPS MBC 01A
Marker Type:
survey disk
Setting:
set into the top of a round concrete monument
Stability:
May hold, but of type commonly subject to surface motion.

Reference Points

Must Read!

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Easy one near my hotel! :)

Cool!

Why this benchmark? Why not this benchmark!

Johann Panholtz

Found it around Septemeber 14, 2002, with my brother Amazingracer.(just now loggin it because i just got a username)took some searchin but we found it.
Uga32

Found as described.

[Photos:]
photoMarker
Marker
photoWitness Post
Post, with marker area visible to right of post.
photoArea around benchmark
What the witness post sees... Yellow arrow points to the post, on bank overlooking the road.

I Found It! It was kinda buried and you could just barley see the disk because of the mud. Here the best I could do on the pictures it was a raining day and the mud makes it hard to read the disk.
-amazingracer

[Photos:]
photoKyle
Sorry couldnt do anything about the mud.

Documented History (by the NGS)

01/01/1989 by TRIBBL (MONUMENTED)
DESCRIBED BY TRIBBLE AND RICHARDSON 1989 MCB-01A IS LOCATED IN NORTHERN BIBB COUNTY APPROXIMATELY 9.3 MILES (15.0 KM) NORTHWEST OF THE COURTHOUSE IN MACON TO REACH THE STATION FROM THE INTERSECTION OF I-475 NORTH AND ZEBULON ROAD PROCEED EAST ALONG ZEBULON ROAD FOR .10 MILE (0.16 KM) TO LARMAR ROAD ON THE LEFT. TURN LEFT ON LARMAR ROAD AND PROCEED NORTH FOR 0.9 MILE (1.4 KM) TO THE STATION ON THE RIGHT, THE EAST SIDE OF THE ROAD THE STATION IS A STANDARD MACON-BIBB CO. GIS GPS DISK, STAMPED MBC-01A, SET IN TOP OF A EIGHT INCH CONCRETE POST, AND SET FLUSH WITH THE GROUND THE STATION IS 57 FEET (17.4 M) AND NORTH 5 DEGREES EAST OF POWER POLE NO. 81, 7.1 FEET (2.2 M) AND SOUTH 61 DEGREES EAST OF A FIRE HYDRANT, 24 FEET (7.3 M) AND SOUTH 83 DEGREES EAST OF THE EDGE OF PAVEMENT, AND 1 FOOT (0.3 M) AND SOUTH 70 DEGREES EAST OF A WITNESS POST

Control Text

  • The horizontal coordinates were established by GPS observations and adjusted by the National Geodetic Survey in January 1999.
  • The orthometric height was determined by GPS observations and a high-resolution geoid model.
  • The X, Y, and Z were computed from the position and the ellipsoidal ht.
  • The Laplace correction was computed from DEFLEC99 derived deflections.
  • The ellipsoidal height was determined by GPS observations and is referenced to NAD 83.
  • The geoid height was determined by GEOID99.

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