Details for Benchmark: RZ0948
N 46° 25.333 W 117° 01.750 (NAD 83)
Coordinates may not be exact. Altitude is ADJUSTED and location is SCALED. (more info)
- In NEZ PERCE county, ID View Original Datasheet
- L 23 RESET 1939
- Marker Type:
- bench mark disk
- light structures
- Mark of questionable or unknown stability.
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Documented History (by the NGS)
|01/01/1939 by CGS (MONUMENTED)
|01/01/1959 by NGS (GOOD)
|DESCRIBED BY NATIONAL GEODETIC SURVEY 1959
IN LEWISTON. AT LEWISTON, NEZ PERCE COUNTY, AT THE CITY HALL FIRE STATION ON 3RD. STREET, ON THE EAST SIDE OF THE BUILDING, AT THE THIRD DOOR NORTH OF THE ENTRANCE TO THE CITY HALL, 4.5 FEET SOUTHWEST OF THE NORTHEAST CORNER OF THE BUILDING, 0.5 OUTSIDE THE LIFTING DOOR, 0.5 FEET SOUTH OF THE NORTH EDGE OF THE DOOR AND IN THE CONCRETE DRIVEWAY.
|01/01/1980 by NGS (GOOD)
|RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1980
IN LEWISTON, SET IN TOP OF THE CONCRETE DRIVEWAY FOR THE NORTH ONE OF TWO GARAGE STALLS FOR THE CITY POLICE STATION AT 027 THIRD STREET, 12.2 METERS (40.0 FEET) WEST OF THE CENTERLINE OF THIRD STREET, 42.0 METERS (138 FEET) NORTH OF THE NORTH CURB OF D STREET, 1.5 METERS (5.0 FEET) NORTH OF THE CENTERLINE OF THE GARAGE STALL, 0.15 METER (0.5 FOOT) EAST OF THE EAST EDGE OF THE OVERHEAD DOOR FOR THE GARAGE. THE MARK IS ABOVE LEVEL WITH THE GARAGE FLOOR.
- 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.