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Nebraska Department of Natural Resources, Lincoln, Nebraska
BenchmarkID - 23      
Designation - 59-1 (NRC)      
Point ID # - AR0160   NGS PID #
USGS Quad - WANN      
County - Sarpy      
State - Nebraska      

Horizontal Datum
Horiziontal Datum - NAD 83            
Horizontal Order - 2nd            
      Latitude   Longitude        
Position -   41° 09' 12.5793"  (N)   -096° 17' 30.6225"  (W)        
State Plane Zone : 2600  
SPC NE (Meters) - Northing:   153,243.695   Easting:   811,066.059
SPC NE (Feet) - Northing:   502,767.023   Easting:   2,660,972.562
  - Scale Factor:   .999677400   Convergence:   + 2 27 26.59

Veritical Datum
Vertical Datum - NAVD 88      
Veritcal Order - 3rd      
Height - Orthometric Height   1,107.596 (Feet)
Height - Orthometric Height   337.596 (Meters)
GEOID  93 - GeoID Height:   26.660 (Meters)
Ellips - Ellipsoidal Height   310.936 (Meters)
Vertical Conversion Factor - 88 Minus 29 - Height: .113 (Meters) Based on: VERTCON
NGVD 29 - Elevation:   1,107.225 (Feet)

Description
Date Established: JULY 1997
Legal Description: Located on the 1/2 mile line - East side of section 28 - T 14 N - R 10 E
General Description:
The horizontal coordinates were established by GPS observations and adjusted by the Ne. Natural Resources Comm., from 1 ST order NGS station ( MILLAPORT ) located at the Millard Airport in Omaha, Ne. The elevation was established by GPS observations, from 2 ND order NGS station ( B 301 ) DESCRIPTION: NEBRASKA NATURAL RESOURCES COMMISSION JULY 1997 To reach the station from the junction of U.S. Highway # 6 and State Highway # 370 on the North edge of Gretna, Ne. go West along a county road for 0.75 mile to a T intersection. Turn right and go North along a county road for 0.5 mile to a crossroads. Turn left & go West along a county road for 2.0 miles to an East to North curve in the county road and the station. ( 240 St. & Lincoln Rd. ) The station is located on the Southwest side of the curve. / 23.5 Ft. East from the South gate post of a field drive leading West 10.5 Ft. South from the centerline of the driveway. / 30.5 Ft. South Southeast from a power pole. / 83.0 Ft. Southwest from a power pole. 84.5 Ft. West from a pole. / 11.5 Ft. West from the West end of a guard rail. The station is a 2 inch dia. aluminum NNRC cap set on top of a 1/2 inch by 5.0 Ft. steel rebar and driven to a depth of 2 inches below ground level and stamped ( 59-1 )