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Details for Benchmark: JV3430

N 39° 44.717 W 077° 33.417 (NAD 83)

Altitude: 619.94

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

Location:
In FRANKLIN county, PA View Original Datasheet
Designation:
H 158 PADH
Marker Type:
survey disk
Setting:
massive structures
Stability:
Probably hold position/elevation well.

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Top part of bridge has been replaced under guardrail, so no remains of bench mark

The mark is in good condition at the posted coordinates.

[Photos:]
photoJV3430(H 158 PADH) - Washington Twp Franklin Co PA
photoJV3430 - Looking N toward mark
photoJV3430 - Looking E toward mark
photoJV3430 - Looking W toward mark
photoJV3430 - Looking S toward mark

Had to dig it out again, but it's still there.

Pictures from previous finders greatly helped. Coords. were just about right on, but there were a few plants covering.

Greetings Geocachers/Benchmarkers,

We found this PADH survey disk near along Rt. 16 near Waynesboro with no difficulty, as reported and pictured by embra and mloser. The disk is as described, exactly where it’s supposed to be. Coordinates and directions are adequate for recovery.

Happy Benchmarking,
Ghosthunter

I agreed with Embra when I first approached this bridge--it was even more grown over than he had found it. But I prodded where I knew a PADH disk should be and hit concrete. A bit of digging revealed the disk.

[Photos:]
photoJV3430 H158 PADH Franklin County, PA
photoJV3430 H158 PADH Franklin County, PA location

Found the bridge easily, but the wingwall was deteriorating to the point that most of the top had crumbled into creek. I removed an inch or two of soil/debris from the prime location and voila! This would be the first time that my limited experience from prior finds helped me figure out where I should look, and it worked!

[Photos:]
photoJV3430 E wingwall as found
Not a cause for optimism.
photoJV3430 disk closeup
After slight excavation
photoJV3430 med shot of wingwall on E Rt 16 Waynesboro Pa

Documented History (by the NGS)

01/01/1942 by PADH (MONUMENTED)
DESCRIBED BY COAST AND GEODETIC SURVEY 1942 1.4 MI SE FROM WAYNESBORO. 1.4 MILES SOUTHEAST ALONG STATE HIGHWAY 16 FROM THE POST OFFICE AT WAYNESBORO, FRANKLIN COUNTY, AT THE INTERSECTION OF THE HIGHWAY AND A GRAVEL ROAD LEADING NORTHEAST, IN THE EAST WINGWALL OF A CONCRETE BRIDGE UNDER THE HIGHWAY, 48 FEET SOUTHEAST OF THE CENTERLINE OF THE GRAVEL ROAD, AND 18 FEET NORTHEAST OF THE CENTERLINE OF THE HIGHWAY. A PENNSYLVANIA STATE HIGHWAY DEPARTMENT STANDARD DISK, STAMPED H 158 1942.
01/01/1942 by CGS (GOOD)

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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