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Details for Benchmark: OF0377

N 43° 13.150 W 076° 19.300 (NAD 83)

Altitude: 377.73

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

Location:
In ONONDAGA county, NY View Original Datasheet
Designation:
H 171
Marker Type:
bench mark disk
Setting:
light structures
Stability:
Mark of questionable or unknown stability.

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Couldn't find suitable parking in area.

Found in good shape.

[Photos:]
photoOF0377

Documented History (by the NGS)

01/01/1942 by CGS (MONUMENTED)
DESCRIBED BY COAST AND GEODETIC SURVEY 1942 2.3 MI E FROM LAMSON. TO REACH FROM THE DELAWARE AND LACKWANNA RAILROAD STATION AT LAMSON, PROCEED 0.6 MILE EAST TO THE INTERSECTION OF STATE HIGHWAY NO. 48, THENCE CONTINUE ON 1.7 MILE EAST ALONG PAVED ROAD TO A CONCRETE CULVERT AND SITE OF BENCH MARK. BENCH MARK IS 0.1 MILE EAST OF A SIDE ROAD LEADING SOUTH INTO GOVERNMENT PROPERTY. IT IS SET HORIZONTALLY IN THE CENTER AND TOP OF THE SOUTH HEADWALL OF A 4X4 FOOT CONCRETE CULVERT, 15.0 FEET SOUTH OF AND LEVEL WITH THE CENTER LINE OF PAVEMENT, AND ABOUT 13.0 FEET NORTH OF THE RIGHT OF WAY FENCE. NOTE--THIS BENCH MARK IS 1.2 MILES WEST OF THE CANAL BRIDGE AT PHOENIX.
01/01/1971 by LOCENG (GOOD)
RECOVERY NOTE BY LOCAL ENGINEER (INDIVIDUAL OR FIRM) 1971 RECOVERED IN GOOD CONDITION.
04/22/1995 by USPSQD (GOOD)
RECOVERY NOTE BY US POWER SQUADRON 1995 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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