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Details for Benchmark: KW1997

N 40° 07.683 W 077° 02.300 (NAD 83)

Altitude: 483.21

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

Location:
In YORK county, PA View Original Datasheet
Designation:
A 167
Marker Type:
bench mark disk
Setting:
massive structures
Stability:
Probably hold position/elevation well.

Must Read!

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..I was using up some vacation time this morning ....so out benchmarking I went ! This mark was on my "to visit" list for a long time - this one was in a forum thread after Brik discovered the bridge was destroyed. I stopped in at the chiropractic business on the east side & obtained permission to walk back to the SW corner of the property. This looks like it was once a nice old bridge - not sure why it was removed. The "Dillsburg Line" tracks were removed back in the 70's...

[Photos:]
photoA 167 (KW1997) area - view looking W
photoA 167 (KW1997) area - view looking SSW
Note - area on S side is posted & if I remember correctly, Brik is the owner of the property the mark is located on, so he should be contacted before anyone would occupy the site of the mark.
photoA 167 (KW1997) setting - view looking SSW
photoA 167 (KW1997) disk - York County, PA
..pic is not super clear - used digital zoom to get closeup from the NE on the other side of the stream.

Documented History (by the NGS)

01/01/1942 by CGS (MONUMENTED)
DESCRIBED BY COAST AND GEODETIC SURVEY 1942 1.2 MI N FROM DILLSBURG. ABOUT 1.2 MILES NORTH ALONG THE PENNSYLVANIA RAILROAD FROM THE STATION AT DILLSBURG, ABOUT 725 FT. SOUTH OF THE CROSSING OF HIGHWAY 74, 8.5 FT. EAST OF THE CENTER LINE OF THE TRACK, A STANDARD DISK SET IN THE SOUTH-EAST CONCRETE HEAD WALL OF A SMALL RAILROAD BRIDGE NO. 15 - 15.
01/01/1966 by CGS (GOOD)
RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1966 RECOVERED IN GOOD CONDITION.
03/21/1999 by USPSQD (GOOD)
RECOVERY NOTE BY US POWER SQUADRON 1999 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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