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Details for Benchmark: BR0974

N 31° 58.093 W 081° 51.084 (NAD 83)

Altitude: 179

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

Location:
In LONG county, GA View Original Datasheet
Designation:
JAECK
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

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Documented History (by the NGS)

01/01/1982 by GADT (MONUMENTED)
DESCRIBED BY GEORGIA DEPARTMENT OF TRANSPORTATION 1982 (WRN) THE STATION IS LOCATED APPROXIMATELY 7.8 KM (4.85 MI) EAST-NORTHEAST FROM GLENNVILLE, 22.8 KM (14.15 MI) SOUTHWEST FROM GROVELAND, AND 22.95 KM (14.25 MI) SOUTH-SOUTHEAST FROM CLAXTON. OWNERSHIP--U.S. GOVERNMENT , FORT STEWART MILITARY RESERVATION. CONTACT RANGE CONTROL BEFORE GOING TO THE STATION. TO REACH THE STATION FROM THE JUNCTION OF U.S. HIGHWAY 301 (U.S. HIGHWAY 25) AND STATE ROUTE 144 IN GLENNVILLE, GO EAST ALONG STATE ROUTE 144 FOR 1.95 KM (1.2 MI) TO THE GEORGIA NATIONAL GUARD BUILDING ON THE LEFT. CONTINUE GOING EAST ALONG STATE ROUTE 144 FOR 6.7 KM (4.15 MI) TO THE JUNCTION OF A DIRT ROAD (FS 5) TO THE LEFT AT THE GLISSONS MILLPOND SIGN ON THE LEFT. TURN A SHARP LEFT GOING NORTHWEST ALONG FS 5 FOR 0.65 KM (0.4 MI) TO A FORK. BEAR RIGHT GOING NORTH ALONG FS 5 FOR 3.8 KM (2.35 MI) TO THE JUNCTION OF A DIRT ROAD (FS 4) CROSSING AND THE STATION ON THE RIGHT IN THE SOUTHEAST QUADRANT OF THE INTERSECTION. THE STATION IS A STANDARD GADT DISK STAMPED---JAECK 1982---, SET INTO THE TOP OF A ROUND CONCRETE MONUMENT 30.5 CM IN DIAMETER PROJECTING 12. CM ABOVE THE GROUND. IT IS LOCATED 16.46 METERS (54 FT) EAST FROM THE CENTERLINE OF FS 5, 20.42 METERS (67 FT) SOUTHEAST FROM THE POINT OF INTERSECTION OF THE CENTERLINES OF FS 5 AND FS 4, 28.22 METERS (92.60 FT) EAST-NORTHEAST FROM AN UNDERGROUND TELEPHONE CABLE PEDESTAL ON THE WEST SIDE OF FS 5, 9.08 METERS (29.80 FT) NORTH-NORTHWEST FROM A 15 INCH PINE TREE, 1.07 METERS (3.5 FT) WEST FROM A METAL WITNESS POST. THE UNDERGROUND MARK IS A STANDARD GADT DISK STAMPED---JAECK 1982---, SET INTO AN IRREGULAR MASS OF CONCRETE 0.9 METERS BELOW THE SURFACE. REFERENCE MARK NUMBER 1 IS A STANDARD GADT DISK STAMPED---JAECK 1982 RM 1---, SET INTO THE TOP OF A ROUND CONCRETE MONUMENT 30.5 CM IN DIAMETER FLUSH WITH GROUND. IT IS LOCATED 19.81 METERS (65 FT) SOUTH FROM THE CENTERLINE OF FS 4, 38.71 METERS (127 FT) EAST-SOUTHEAST FROM THE POINT OF INTERSECTION OF THE CENTERLINES OF FS 4 AND FS 5, 18.62 METERS (61.10 FT) EAST FROM THE 15 INCH PINE TREE, 0.975 METERS (3.2 FT) NORTH FROM A METAL WITNESS POST. MARK IS LEVEL WITH STATION. REFERENCE MARK NUMBER 2 IS A STANDARD GADT DISK STAMPED---JAECK 1982 RM 2---, SET INTO THE TOP OF A ROUND CONCRETE MONUMENT 30.5 CM IN DIAMETER FLUSH WITH GROUND. IT IS LOCATED 13.71 METERS (45 FT) EAST FROM THE CENTERLINE OF FS 5, 29.38 METERS (96.40 FT) SOUTHEAST FROM THE UNDERGROUND TELEPHONE CABLE PEDESTAL ON THE WEST SIDE OF FS 5, 9.08 METERS (29.80 FT) NORTH-NORTHWEST FROM ANOTHER 5 INCH PINE TREE, AND 1.07 METERS (3.5 FT) WEST FROM A METAL WITNESS POST. MARK IS LEVEL WITH STATION. AZIMUTH MARK NUMBER 1 IS A STANDARD GADT DISK STAMPED---JAECK 1982 AZ MK---, SET INTO THE TOP OF A ROUND CONCRETE MONUMENT 30.5 CM IN DIAMETER FLUSH WITH GROUND. IT IS LOCATED 6.7 METERS (22 FT) NORTH-NORTHWEST FROM THE CENTERLINE OF FS 4, 23.07 METERS (75.70 FT) EAST-SOUTHEAST FROM AN 18 INCH PINE TREE WITH A 10 FOOT TURPENTINE SLASH, 40.72 METERS (133.6 FT) NORTHWEST FROM A 12 INCH DOUBLE CURVED PINE TREE SOUTH OF SF 4, AND 0.73 METER (2.4 FT) SOUTH-SOUTHEAST FROM A METAL WITNESS POST. THE UNDERGROUND MARK IS A STANDARD GADT DISK STAMPED---JAECK 1982 AZ MK---, SET INTO AN IRREGULAR MASS OF CONCRETE 0.92 METER BELOW GROUND. TO REACH AZIMUTH MARK FROM THE STATION PROCEED EAST-NORTHEAST ALONG FS 4 FOR 0.65 KM (0.4 MI) TO THE JUNCTION OF A TANK TRAIL REVERSE FORKING TO THE LEFT, AND THE MARK ON THE LEFT. HEIGHT OF LIGHT SHOWN ABOVE THE MARK WAS 34.4 METERS. FS ROAD NUMBERS OBTAINED FROM--FORT STEWART INSTALLATION MAP 1979. DESCRIBED BY W.M. JONES.
01/01/1985 by GADT (GOOD)
RECOVERY NOTE BY GEORGIA DEPARTMENT OF TRANSPORTATION 1985 (WRN) THE STATION WAS RECOVERED AT THIS DATE. THE STATION WAS FOUND IN GOOD CONDITION AS DESCRIBED IN 1982. THE STATION WAS OCCUPIED BY GLOBAL POSITIONING SYSTEM FOR CONTROL OF PROJECT VICINITY OF GLENNVILLE AREA. DESCRIBED BY W. R. NEAL.

Control Text

  • The horizontal coordinates were established by GPS observations and adjusted by the National Geodetic Survey in September 1997.
  • The NAVD 88 height was computed by applying the VERTCON shift value to the NGVD 29 height (displayed under SUPERSEDED SURVEY CONTROL.)
  • 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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