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Details for Benchmark: DN0694

N 33° 10.083 W 097° 09.117 (NAD 83)

Altitude: 579.94

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

Location:
In DENTON county, TX View Original Datasheet
Designation:
V 949
Marker Type:
bench mark disk
Setting:
massive structures
Stability:
Probably hold position/elevation well.

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A new bridge has been constructed and the benchmark is gone.

found using CampinCrazy Coords.

[Photos:]
photoDN0694
photoDN0694
photoDN0694

N33 10.092 W097 09.141

Found with LC at these coords.

[Photos:]
photoBM DN0694 - Disc
photoBM DN0694 - Headwall

Easy find. Now for some of those undiscovered ones out there...

Found marker as described, in good condition. See Photo.

[Photos:]
photo01.DN 0694.jpg

Right where it's supposed to be, in plain sight.

Found this one right where it is supposed to be. Marker is in excellent shape, but elevation was a bit off. It was reading 564 feet.

Documented History (by the NGS)

01/01/1946 by CGS (MONUMENTED)
01/01/1960 by NGS (GOOD)
DESCRIBED BY NATIONAL GEODETIC SURVEY 1960 3.7 MI S FROM DENTON. 3.7 MILES SOUTH ALONG U.S. HIGHWAY 377 FROM THE COUNTY COURTHOUSE AT DENTON, DENTON COUNTY, 3.7 MILES NORTHEAST OF THE TEXAS AND PACIFIC RAILWAY STATION AT ARGYLE, AT A CONCRETE BRIDGE OVER HICKORY CREEK, IN THE TOP OF THE EAST END OF THE NORTH ABUTMENT, 15 FEET EAST OF THE CENTERLINE OF THE HIGHWAY, AND ABOUT 1 FOOT HIGHER THAN THE HIGHWAY. A STANDARD DISK, STAMPED V 949 1946.
01/01/1980 by NGS (GOOD)
RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1980 3.7 MILES SOUTH ALONG U.S. HIGHWAY 377 FROM THE COURTHOUSE IN BENTON, IT IS 3.6 MILES NORTHEAST OF POST OFFICE IN ARGYLE, AT THE CONCRETE BRIDGE OVER HICKORY CREEK, IN THE TOP OF THE EAST OF THE NORTH ABUTMENT, 15 FEET EAST OF THE CENTERLINE OF THE HIGHWAY AND 1 FOOT HIGHER THAN THE HIGHWAY.
06/30/1995 by USPSQD (GOOD)
RECOVERY NOTE BY US POWER SQUADRON 1995 RECOVERED IN GOOD CONDITION.
02/14/1998 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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