Skip to Content

Details for Benchmark: KV2763

N 40° 56.683 W 075° 44.783 (NAD 83)

Altitude: 726.67

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

Location:
In CARBON county, PA View Original Datasheet
Designation:
F 48
Marker Type:
bench mark disk
Setting:
massive structures
Stability:
Probably hold position/elevation well.

Must Read!

Benchmarks may be on private property or in dangerous locations. Obey local laws. By using the services on Geocaching.com you agree to this disclaimer.

Iv'e seen this one before,but always forget to log it. Thanks.

We were taking a 25 mile bike ride through the Lehigh Gorge and we saw this one on the Reading, Blue Mountain & Northern Railroad bridge over the Lehigh River.

[Photos:]
photoF 48
Mark on bridge abutment near sign for Bridge 130.
photoF 48 (KV2763) Closeup
photoF 48
Mark with river below.
N 40° 56.702 W 075° 44.796

Please see the complete recovery, including text and photos, at my website: [b][url=http://surveymarks.planetzhanna.com/surveymarks/kv2763/]KV2763 - F 48[/url][/b].

Zhanna

This entry was edited by Zhanna on Friday, 07 December 2012 at 02:22:19 UTC.

RockCat35 & Sue found Benchmark.

[Photos:]
photoKV2763 (NGS Benchmark)

Documented History (by the NGS)

1/1/1934 by CGS (MONUMENTED)
DESCRIBED BY COAST AND GEODETIC SURVEY 1934 AT PENN HAVEN JUNCTION. AT PENN HAVEN JUNCTION, CARBON COUNTY, ON THE LEHIGH VALLEY RAILROAD, AT BRIDGE 130, IN THE EAST END OF THE SOUTH ABUTMENT, 8 FEET EAST OF THE CENTER LINE OF THE TRACK, AND ABOUT 1 FOOT LOWER THAN THE TOP OF THE RAIL. A STANDARD DISK, STAMPED F 48 1934.

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.

Advertising with Us

Return to the Top of the Page