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Details for Benchmark: KV1920

N 40° 06.033 W 075° 01.417 (NAD 83)

Altitude: 187

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

Location:
In PHILADELPHIA county, PA View Original Datasheet
Designation:
E 263 RESET 1969
Marker Type:
bench mark disk
Setting:
massive structures
Stability:
Probably hold position/elevation well.

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Recovered in good condition - the mark is at the NW end of the bridgewall running along the NE side of the bridge & is set about 2" from the end.

[Photos:]
photoE 263 RESET (KV1920) disk - Philadelphia, PA
photoE 263 RESET (KV1920) setting - view looking E
photoE 263 RESET (KV1920) area - view looking ESE

Documented History (by the NGS)

01/01/1969 by LOCSUR (MONUMENTED)
01/01/1970 by NGS (GOOD)
DESCRIBED BY NATIONAL GEODETIC SURVEY 1970 2.7 MI E FROM HUNTINGTON VALLEY. 2.7 MILES EAST ALONG RED LION ROAD FROM THE INTERSECTION OF HUNTINGTON PIKE IN HUNTINGTON VALLEY, SET IN THE END OF THE NORTHWEST WINGWALL PARPET OF THE BRIDGE OVER THE READING RAILROAD.

Control Text

  • The horizontal coordinates were scaled from a topographic map and have an estimated accuracy of +/- 6 seconds.
  • The NAVD 88 height was computed by applying the VERTCON shift value to the NGVD 29 height (displayed under SUPERSEDED SURVEY CONTROL.) The vertical order pertains to the superseded datum.
  • The geoid height was determined by GEOID99.

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