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Details for Benchmark: AR0271

N 29° 56.667 W 082° 06.567 (NAD 83)

Altitude: 167.94

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

Location:
In BRADFORD county, FL View Original Datasheet
Designation:
U 147 RESET 1961
Marker Type:
bench mark disk
Setting:
light structures
Stability:
Mark of questionable or unknown stability.

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Found while waiting on friends with GTL

I was actually sitting on a bench about 30 feet away so I didn't have to travel to far to make the Find.

[Photos:]
photoimage

Found as described in good condition

[Photos:]
photoAR0271 Starke, FL
closeup of disk
photoAR0271 Starke, FL
setting
photoAR0271 Starke, FL
the PO
N 29° 56.679 W 082° 06.567

BRADFORD COUNTY.
This is a standard USCGS Bench Mark station. An easy find at the base of the flag pole.
Recovering BM's in each of the northern Florida counties. My GPS coords to within 17'.

[Photos:]
photoAR0271-GPS-02252015
photoAR0271-U_147_RESET_1961-2-02252015
photoAR0271-U_147_RESET_1961-3ESE-02252015

Found it 1/12/13 at 9:53a. Skyboy01

[Photos:]
photoU 147 RESET 1961
AR0271 U 147 RESET 1961. Skyboy01

Another easy find, even convenient parking.

[Photos:]
photoAR0271
photoAR0271 location
N 29° 56.680 W 082° 06.567

It's right where it's supposed to be, and easily seen from the street. We found this one at night, so the pics were dark. We came back the next morning for better pics.

[This entry was edited by Paradise on Tuesday, March 02, 2004 at 8:50:24 AM.]

[Photos:]
photoBase of flagpole
photoFlying high in front of the Starke Post Office
photoU 147 RESET 1961

Documented History (by the NGS)

01/01/1961 by CGS (MONUMENTED)
DESCRIBED BY COAST AND GEODETIC SURVEY 1961 AT STARKE. AT STARKE, AT THE SOUTHEAST CORNER OF THE INTERSECTION OF NORTH WALNUT STREET AND EAST JEFFERSON STREET, 37 FEET EAST OF THE CENTER LINE OF NORTH WALNUT STREET, 58 FEET SOUTH OF THE CENTERLINE OF EAST JEFFERSON STREET, SET IN THE CONCRETE BASE AND 1 FOOT WEST OF THE FLAGPOLE IN FRONT OF THE POST OFFICE.
01/01/1979 by NGS (GOOD)
RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1979 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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