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Details for Benchmark: LY1114

N 41° 11.102 W 075° 25.821 (NAD 83)

Altitude: 1946.9

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

Location:
In MONROE county, PA View Original Datasheet
Designation:
D 59 RESET
Marker Type:
bench mark disk
Setting:
footings/foundation walls of small/medium structures
Stability:
May hold, but of type commonly subject to surface motion.

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Found as described in good condition. However, disk appears flattened and even concave. It may have been this way originally, but more likely has been damaged. I thought I had taken a photo to show this better, but it wasn't on my camera.

[Photos:]
photoLY1114 mark: D 59 RESET
Mark and GPSr.
photoLY1114 area S: D 59 RESET Tobyhanna PA
View to the S, mark is at lower left indicated by notebook. Rails run S to Tobyhanna and Pocono Summit; Tobyhanna Army Depot is out of photo to the left.

Found this one without a problem.

[Photos:]
photoLY1114
photoLY1114 AREA
Looking across the bridge from the west. The benchmark is visible just to the right of the base of the railing.

Documented History (by the NGS)

01/01/1962 by ELRR (MONUMENTED)
DESCRIBED BY ERIE LACKAWANNA RAILROAD 1962 0.6 MI NW FROM TOBYHANNA. 0.68 MILE NORTHWESTERLY ALONG THE ERIE-LACKAWANNA RAILROAD FROM TOBYHANNA, MONROE COUNTY, PA., ON A DOUBLE TRACK, SINGLE SPAN THROUGH GIRDER RAILROAD BRIDGE SUPPORTED ON CONCRETE ABUTMENTS. BRIDGE SPANS PENNA. LEGISLATIVE ROUTE 450.36 AT BITUMINOUS ASPHALT PAVED ROAD LEADING INTO THE TOBYHANNA SIGNAL CORPS DEPOT, AND SET IN TOP OF NORTHERLY CONCRETE PARAPET 1.35 FEET EASTERLY FROM THE WEST END OF THE BRIDGE, 9.75 FEET NORTHEASTERLY FROM THE CENTERLINE OF WESTBOUND MAIN TRACK, AT APPROXIMATE TOP OF RAIL ELEVATION.
10/19/1988 by NGS (GOOD)
RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1988 THE STATION WAS RECOVERED IN GOOD CONDITION, A NEW DESCRIPTION FOLLOWS. THE STATION IS LOCATED ABOUT 1.5 KM (0.95 MI) NORTHWEST OF TOBYHANNA, 0.5 KM (0.30 MI) NORTHWEST OF EXIT 7 OF INTERSTATE HIGHWAY 380, AT THE SOUTH ENTRANCE TO THE TOBYHANNA ARMY DEPOT, IN THE NORTHWEST END OF THE NORTHEAST CONCRETE RAILING BASE OF CONRAIL TRACK OVER PAVED ROAD. OWNERSHIP--CONSOLIDATED RAILWAY COMPANY. TO REACH THE STATION FROM THE JUNCTION OF STATE HIGHWAYS 423 AND 611 GO NORTH ON HIGHWAY 611 FOR 1.2 KM (0.75 MI) TO ITS END AT THE JUNCTION OF INTERSTATE HIGHWAY 380 AND A PAVED ROAD ON THE RIGHT. TURN RIGHT AND GO EAST ON THE PAVED ROAD TO THR RAILROAD OVERPASS AND THE STATION ON THE LEFT. THE STATION IS A STANDARD CGS DISK SET IN A DRILL HOLE IN THE CONCRETE RAILING BASE. LOCATED 0.3 M (1.0 FT) SOUTHEAST OF NORTHWEST END OF BASE, 0.4 M (1.3 FT) WEST OF THE MOST NORTHWEST RAILING POST, 2.2 M (7.2 FT) NORTHEAST OF NORTHEAST RAIL, AND 6.4 M (21.0 FT) ABOVE ROAD. DESCRIBED BY G.R. HEID, TYPED BY R.L. ZURFLUH.
11/13/1990 by NGS (GOOD)
RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1990 THE STATION IS LOCATED ABOUT 1.5 KM (0.9 MI) NORTHWEST OF TOBYHANNA, 0.5 KM (0.3 MI) NORTHWEST OF EXIT 7 ON INTERSTATE HIGHWAY 380, NEAR THE SOUTH ENTRANCE OF THE TOBYHANNA ARMY DEPOT AND IN THE NORTHWEST END OF THE NORTHEAST CONCRETE RAILING BASE OF THE RAILROAD BRIDGE OVER THE ENTRANCE ROAD TO THE ARMY DEPOT. OWNERSHIP--CONRAIL RAILROAD, 7 NORTH WHATEVER, STROUDSBURG, PA 18360, PHONE 717-421-2730. TO REACH THE STATION FROM THE JUNCTION OF STATE HIGHWAYS 611 AND 423 IN TOBYHANNA, GO NORTH ON STATE HIGHWAY 611 FOR 1.2 KM (0.7 MI) TO THE END AT THE JUNCTION OF INTERSTATE HIGHWAY 380 AND A PAVED ROAD RIGHT LEADING TO THE ARMY DEPOT. TURN RIGHT, EAST, ON THE PAVED ROAD TO THE CONRAIL OVERPASS BRIDGE AND THE STATION IN THE NORTHWEST END OF THE NORTHEAST SIDE OF THE CONCRETE RAILING BASE OF THE BRIDGE. THE STATION IS LOCATED ABOUT 6.1 M (20.0 FT) ABOVE THE ROAD, 2.2 M (7.2 FT) NORTHEAST OF THE NORTHEAST RAIL OF THE TRACKS, 0.4 M (1.3 FT) WEST OF THE MOST NORTHWESTERLY RAILING POST AND 0.3 M (1.0 FT) SOUTHEAST OF THE NORTHWEST END OF THE CONCRETE RAILING BASE.

Control Text

  • The horizontal coordinates were established by GPS observations and adjusted by the National Geodetic Survey in September 1999.
  • The orthometric height was computed from unverified reset data.
  • The Laplace correction was computed from DEFLEC99 derived deflections.
  • The geoid height was determined by GEOID99.

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