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Details for Benchmark: FH0993

N 35° 23.565 W 094° 25.703 (NAD 83)

Altitude: 0

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

Location:
In SEBASTIAN county, AR View Original Datasheet
Designation:
FORT SMITH SE TRANSM LINE TWR
Marker Type:
tower
Setting:
setting not listed - see description
Stability:

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This tower is no longer in existence. Oklahoma Gas and Electric (now OG&E Electric Service) has a transmission tower for wires over the river on the South side of Garrison Avenue South South West (SSW) of the location noted here.

Documented History (by the NGS)

01/01/1935 by CGS (FIRST OBSERVED)
DESCRIBED BY COAST AND GEODETIC SURVEY 1935 (CAS) THIS INTERSECTION STATION IS THE TIP OF THE SOUTHEASTERLY OF TWO TOWERS SUPPORTING AN OKLAHOMA GAS AND ELECTRIC COMPANY TRANSMISSION LINE ACROSS THE ARKANSAS RIVER. IT IS A RECTANGULAR SKELETON STEEL TOWER AND IS UNPAINTED. IT IS ABOUT 50 BY 20 FEET AT THE BASE AND 3 FEET SQUARE NEAR THE TOP. THE UPPER 3 FEET HOLDING THE INSULATOR BRACKETS IS VERTICAL. IT COMES TO A PEAK AT THE TOP. IT IS ABOUT 135 FEET HIGH AND IS QUITE PROMINENT IN THE RIVER VALLEY. THE NORTHWESTERLY TOWER IS SIMILAR IN APPEARANCE EXCEPT THAT IT IS PAINTED. THE TOWER IS IN THE NORTHWESTERN PART OF THE BUSINESS SECTION OF FORT SMITH, ABOUT 100 FEET SE OF THE BANK OF THE ARKANSAS RIVER, ABOUT 1,000 FEET NE OF THE SE END OF THE SEBASTIAN BRIDGE OVER THE RIVER WHICH IS ON THE EXTENSION OF THE MAIN STREET OF TOWN, ABOUT 40 FEET NW OF A SPUR TRACK OF THE MISSOUR PACIFIC RAILROAD, AND ABOUT 125 FEET SW OF THE CENTER LINE OF N C STREET. THE MIDDLE OF THE RIVER OPPOSITE THE STATION IS ABOUT ON THE ARKANSAS-OKLAHOMA BOUNDARY.

Control Text

  • The horizontal coordinates were established by classical geodetic methods and adjusted by the National Geodetic Survey in September 1999.
  • The Laplace correction was computed from DEFLEC99 derived deflections.
  • The geoid height was determined by GEOID99.

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