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Details for Benchmark: RZ0924

N 46° 27.317 W 117° 00.317 (NAD 83)

Altitude: 1877.05

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

Location:
In NEZ PERCE county, ID View Original Datasheet
Designation:
F 23
Marker Type:
bench mark disk
Setting:
set into the top of a round concrete monument
Stability:
May hold, but of type commonly subject to surface motion.

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N46 27.340 W117 00.340 found mark in good condition

Condition Good

[Photos:]
photoF23/RZ0924

Documented History (by the NGS)

01/01/1933 by CGS (MONUMENTED)
01/01/1946 by NGS (GOOD)
DESCRIBED BY NATIONAL GEODETIC SURVEY 1946 5.5 MI N FROM LEWISTON. 5.5 MILES NORTH ALONG U. S. HIGHWAY 95 FROM THE COUNTY COURTHOUSE AT LEWISTON, 28 FEET SOUTH OF THE CENTER LINE OF THE HIGHWAY, 8 FEET EAST OF THE EAST END OF A GATE, 2.6 FEET SOUTH OF A FENCE, AND 3 FEET SOUTH OF A WHITE WITNESS POST. A BRONZE DISK, SET IN THE TOP OF A CONCRETE POST PROJECTING ABOUT 8 INCHES ABOVE THE GROUND.
01/01/1980 by NGS (GOOD)
RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1980 7.6 KILOMETERS (4.7 MILES) NORTH ALONG OLD U.S. HIGHWAY 95 FROM THE JUNCTION OF U.S. HIGHWAY 12 IN LEWISTON, AT THE NORTHWEST END OF A HIGHWAY CURVE, 8.5 METERS (28.0 FEET) SOUTHWEST OF THE CENTERLINE OF THE HIGHWAY, 2.4 METERS (8.0 FEET) SOUTHEAST OF THE SOUTHEAST END OF A WOODEN GATE IN A BARBED WIRE FENCE LINE, 0.7 METER (2.6 FEET) SOUTHWEST OF THE FENCE LINE. THE MARK IS 0.6 METERS NW FROM A WITNESS POST. THE MARK IS 1.2 M ABOVE THE HIGHWAY.

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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