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Details for Benchmark: HU1168

N 38° 21.517 W 075° 05.000 (NAD 83)

Altitude: 4.58

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

Location:
In WORCESTER county, MD View Original Datasheet
Designation:
OC 10
Marker Type:
survey disk
Setting:
light structures
Stability:
Mark of questionable or unknown stability.

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Found in good condition painted red...

[Photos:]
photoOC 10
photoLooking East
N 38° 21.538 W 075° 05.978

Yep! It's mostly bright red
We found it at: N38 21.538 W075 05.978

[Photos:]
photoHU1168 - Location
photoHU1168 - Disk

Yeah! Benchmark # 50!!!! Its still painted over, but easy to find.

Found it! Still painted over. This was Bmark #50! No on to bigger, better things.

Still there but has a nice new red coat of paint on it.

[This entry was edited by pickupanddropoff on Saturday, November 28, 2009 at 8:22:45 PM.]

[Photos:]
photoClose Up
photoStreet Level View

Found as described.

[Photos:]
photoClose Up

Recovered in good condition - my coordinates were almost the same as Zhanna's....

[Photos:]
photoOC 10 (HU1168) disk - Ocean City, MD
photoOC 10 (HU1168) setting - view looking W
photoOC 10 (HU1168) area - view looking E
N 38° 21.540 W 075° 04.979

This survey disk was found as described in the base of a street light just south of Eagle Drive. The mark was located easily using the historic description. The mark lies just northeast of the northeast corner of the parking lot for the “The Carvinelle” apartments. At the site, I recorded coordinates that are approximately 172 feet from the coordinates given on the datasheet. The disk is in very good condition with all stamping clearly legible.

Zhanna

[Photos:]
photoHU1168, Worcester County, MD
photoThe mark indicated on the street light base.

Documented History (by the NGS)

01/01/1977 by MDDT (MONUMENTED)
DESCRIBED BY MARYLAND DEPARTMENT OF TRANSPORTATION 1977 IN OCEAN CITY. FROM THE POST OFFICE IN OCEAN CITY, PROCEED N ALONG MD RTE 528 (COASTAL HIGHWAY) FOR 1.6 MI TO ROBIN DRIVE, GO W ALONG ROBIN AND EAGLE DRIVE FOR 0.4 MI TO 503 EAGLE DRIVE. MARK IS 25.5 FT S OF CENTERLINE OF EAGLE DRIVE, 84.7 FT W OF THE CENTERLINE OF GULLWAY AND 60.5 FT NW OF TELEPHONE PEDESTAL NO 1, SET IN A DRILL HOLE IN THE NE CORNER OF A STREET LIGHT BASE. .4 FEET ABOVE PARKING LOT.

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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