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Details for Benchmark: MP0255

N 41° 46.333 W 107° 16.617 (NAD 83)

Altitude: 6824.96

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

Location:
In CARBON county, WY View Original Datasheet
Designation:
V 115
Marker Type:
bench mark disk
Setting:
set into the top of a round concrete monument
Stability:
May hold, but of type commonly subject to surface motion.

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N 41° 46.348 W 107° 16.600

Bench Mark V 115 was recovered as described, in POOR condition.

The previous pictures show that the concrete post was horizontal in 2003. It has since been hit by a vehicle or piece of equipment, and is now tilted.

[Photos:]
photoMP0255 20060730 G (Carbon Co. WY)
Bench Mark V 115 w/GPSr.
photoMP0255 20060730 C (Carbon Co. WY)
Bench Mark V 115.
photoMP0255 20060730 B (Carbon Co. WY)
Bench Mark V 115 from Eye Level.
photoMP0255 20060730 B2 (Carbon Co. WY)
Another view of Bench Mark V 115 from Eye Level.
photoMP0255 20060730 A1 N (Carbon Co. WY)
North at Bench Mark V 115.
photoMP0255 20060730 A2 W (Carbon Co. WY)
West at Bench Mark V 115.
photoMP0255 20060730 A3 E (Carbon Co. WY)
East at Bench Mark V 115.

Benchmark in good condition. Concrete monument has been recently painted with fluorescent orange paint, as has wooden lath strung in fence adjacent to marker. Orange fiberglass witness post broken off and blown southeast across gravel road. Replaced next to fencepost before departing.

[Photos:]
photoFerris Crossing
Benchmark disk, with traces of fluoresent paint on concrete.
photoFerris Crossing
Benchmark and painted lath woven into UPRR right-of-way fence.
photoFerris Crossing
Benchmark, painted lath, replaced witness post with Rawlins hospital and water tank in bachground.

Documented History (by the NGS)

01/01/1956 by CGS (MONUMENTED)
DESCRIBED BY COAST AND GEODETIC SURVEY 1956 2.2 MI W FROM RAWLINS. 2.2 MILES WEST ALONG THE UNION PACIFIC RAILROAD FROM THE STATION AT RAWLINS, 219 FEET EAST OF THE CENTER OF A ROAD CROSSING, 185 FEET SOUTHEAST OF THE SOUTHEAST RAIL OF THE SOUTHEAST MAIN LINE TRACK, 114 FEET SOUTHEAST OF THE 3RD POLE SOUTHWEST OF MILEPOST 685, 82 FEET NORTHEAST OF A FENCE CORNER, 2.8 FEET SOUTHEAST OF A FENCE, 4.7 FEET SOUTH OF A WITNESS POST, SET IN THE TOP OF A CONCRETE POST WHICH PROJECTS 0.4 FOOT ABOVE THE GROUND, IN SECTION 19, TOWNSHIP 21 NORTH, RANGE 87 WEST.
01/01/1983 by NGS (GOOD)
RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1983 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. WARNING-Repeat measurements at this control monument indicate possible vertical movement.
  • 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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