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Details for Benchmark: AB2374

N 25° 26.133 W 080° 43.217 (NAD 83)

Altitude: 4.59

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

Location:
In DADE county, FL View Original Datasheet
Designation:
S 432
Marker Type:
metal rod
Setting:
stainless steel rod
Stability:
Probably hold position/elevation well.

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N 25° 26.120 W 080° 43.231

Found as described in good condition.

[Photos:]
photoAB2374
View of mark, cap closed.
photoAB2374
Close up of designation.
photoAB2374
Close up w/lid open and GPSr.

Documented History (by the NGS)

1/1/1994 by FLDEP (MONUMENTED)
DESCRIBED BY FL DEPT OF ENV PRO 1994 (LGB) THE MARK IS ABOUT 15.5 MI (24.9 KM) SOUTHWEST OF FLORIDA CITY IN THE EVERGLADES NATIONAL PARK. TO REACH THE MARK FROM THE INTERSECTION OF U.S. HIGHWAY 1 AND PALM DRIVE (SW. 3 STREET) IN FLORIDA CITY, GO WEST ON PALM DRIVE (STATE ROAD 27, SW. 3 STREET) FOR 1.7 MI (2.7 KM) TO THE INTERSECTION OF TOWER ROAD (SW. 192 AVENUE) , TURN LEFT ON TOWER ROAD (STATE ROAD 27, SW 192 AVENUE) AND GO SOUTH FOR 2.1 MI (3.4 KM) TO THE JUNCTION OF SW. 376 STREET (STATE ROAD 27) ON THE RIGHT, TURN RIGHT ON SW. 376 STREET (STATE ROAD 27, PARK ROAD) AND GO WEST FOR 5.4 MI (8.7 KM) TO THE EVERGLADES NATIONAL PARK ENTRANCE BUILDING, CONTINUE WEST-NORTHWEST ON PARK ROAD (STATE ROAD 27) FOR 4.75 MI (7.64 KM) TO THE TURNOFF FOR LONG PINE KEY, CONTINUE WEST-NORTHWEST ON PARK ROAD (STATE ROAD 27) FOR 5.2 MI (8.4 KM) TO THE JUNCTION OF A LIMEROCK ROAD ON THE LEFT AND THE MARK ON THE RIGHT, A STAINLESS STEEL ROD DRIVEN TO REFUSAL AT A DEPTH OF 6.6 FT (2.0 M) RECESSED 0.1 FT (3.0 CM) BELOW THE LEVEL OF THE GROUND, WITH A LOGO CAP FLUSH WITH THE GROUND AND ABOUT 0.5 FT (15.2 CM) BELOW THE LEVEL OF PARK ROAD (STATE ROAD 27) . 16.2 FT (4.9 M) NORTH OF THE APPROXIMATE CENTERLINE OF PARK ROAD (STATE ROAD 27), 8.0 FT (2.4 M) SOUTH OF THE EDGE OF SAWGRASS AT THE APPROXIMATE EXTENDED CENTERLINE OF THE LIMEROCK ROAD (SOUTH). NOTE ACCESS TO DATUM POINT IS HAD THROUGH A 5-INCH LOGO CAP.

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 April 1996.
  • 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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