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Details for Benchmark: KW1882

N 40° 21.100 W 077° 12.617 (NAD 83)

Altitude: 462.6

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

Location:
In PERRY county, PA View Original Datasheet
Designation:
A 153 PADH
Marker Type:
survey disk
Setting:
massive structures
Stability:
Probably hold position/elevation well.

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1928 bridge and disk in good shape.

[Photos:]
photoClose up
photoView to NW
Looking toward intersection with Mill Road

Found in good condition.

[Photos:]
photoKW1882

Recovered in good condition - location is east of junction with Mill Rd. which leads N.

[Photos:]
photoA 153 PADH (KW1882) disk - Perry County, PA
photoA 153 PADH (KW1882) setting - view looking WNW

This is my first benchmark. I found it easily. The coord. were right on, even the elev. was darn close. It was in good shape and everything was readable.
I don't have a digital camera for pictures, sorry. I don't think anyone should have trouble finding this one. Good Luck
mustanglx

[last edit: 6/9/2003 12:20:19 PM PST]

[Photos:]
photoKW1882 Looking South ward
photoKW1882 Disc

Documented History (by the NGS)

01/01/1942 by PADH (MONUMENTED)
DESCRIBED BY COAST AND GEODETIC SURVEY 1942 3 MI NW FROM SHERMANSDALE. 1.9 MILES NORTHWEST ALONG STATE HIGHWAY NO. 34 FROM THE POST OFFICE AT SHERMANSDALE, THENCE 1.1 MILES WEST ALONG STATE HIGHWAY NO. 850, SET IN THE NORTH CORNER OF THE EAST ABUTMENT OF THE CONCRETE BRIDGE PAINTED 289 + 29, 13.4 FEET NORTH OF THE CENTER-LINE OF THE HIGHWAY. A STANDARD PENNSYLVANIA DEPARTMENT OF HIGHWAYS DISK. STAMPED BY THE U.S.C. AND G.S.
01/01/1942 by CGS (GOOD)
01/01/1953 by CGS (GOOD)
RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1953 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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