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Details for Benchmark: KV1659

N 40° 37.333 W 075° 23.033 (NAD 83)

Altitude: 299.58

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

Location:
In NORTHAMPTON county, PA View Original Datasheet
Designation:
F 269
Marker Type:
bench mark disk
Setting:
light structures
Stability:
Mark of questionable or unknown stability.

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My first Benchmark find, never knew they existed

Decided to do an easy one before the hurricane, and a well documented one to start with. Drive by here often.

[Photos:]
photoDSCF0210

great view...

[Photos:]
photoIMG_6335
photoIMG_6336
N 40° 37.339 W 075° 23.064

Please see the complete recovery, including text and photos, at my website: [b][url=http://surveymarks.planetzhanna.com/surveymarks/kv1659/]KV1659 - F 269[/url][/b].

Zhanna

This entry was edited by Zhanna on Friday, 07 December 2012 at 02:21:41 UTC.

Found while visiting the musikfest

Found this one in good condition as described.

[Photos:]
photoF 269.jpg
photoF 269 Setting.jpg
photoView from F 269.jpg
N 40° 37.340 W 075° 23.068

Found as described atop the bannister at the west end of the Broad Street Bridge.

[Photos:]
photoCloseup, station F 269 (KV1659), Bethlehem, PA
photoMedium view, station F 269 (KV1659), Bethlehem, PA
Station disk is highlighted inside yellow box atop bridge bannister.
photoBridge view, station F 269 (KV1659), Bethlehem, PA
View to the east from station (which is highlighted in yellow box). Downtown Bethlehem business district is at the far end of the bridge.

Found this one durning work. Pic helped alot. Thanks

After we completed the Bethlehem Steel (Virtual Cache) we stopped to locate this benchmark.
Team Fuji

[Photos:]
photoBench Mark Disk

Easily recovered by following the 1960 CGS monumentation description.

[Photos:]
photoKV1659
A close up image of the marker disk.
photoKV1659area
A wider view of the marker area. The view is looking east across the Broad Street bridge.

Documented History (by the NGS)

01/01/1960 by CGS (MONUMENTED)
DESCRIBED BY COAST AND GEODETIC SURVEY 1960 AT BETHLEHEM. AT BETHLEHEM, ON TOP OF THE WEST END OF THE SOUTH BRIDGE BANNISTER OF THE LARGE BROAD STREET BRIDGE OVER THE MONOCACY CREEK AND THE LEHIGH RAILROAD, 29.7 FEET SOUTH OF THE CENTER LINE OF BROAD STREET, 28.2 FEET NORTHEAST OF THE SOUTHWEST END OF THE BANNISTER AND 4.2 FEET ABOVE THE BRIDGE SIDEWALK.
01/01/1973 by PADT (GOOD)
RECOVERY NOTE BY PA DEPT OF TRANSP 1973 RECOVERED IN GOOD CONDITION.
01/01/1979 by NGS (GOOD)
RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1979 RECOVERED IN GOOD CONDITION.
01/01/1984 by USPSQD (GOOD)
RECOVERY NOTE BY US POWER SQUADRON 1984 RECOVERED IN GOOD CONDITION.
01/01/1987 by LOCSUR (GOOD)
RECOVERY NOTE BY LOCAL SURVEYOR (INDIVIDUAL OR FIRM) 1987 (VDD) RECOVERED IN GOOD CONDITION.
05/06/1994 by USPSQD (GOOD)
RECOVERY NOTE BY US POWER SQUADRON 1994 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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