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Details for Benchmark: LH1380

N 40° 43.023 W 099° 00.597 (NAD 83)

Altitude: 2129.7

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

Location:
In BUFFALO county, NE View Original Datasheet
Designation:
EAR AP STA B
Marker Type:
topographic station 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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Documented History (by the NGS)

01/01/1967 by CGS (MONUMENTED)
04/13/1989 by NGS (GOOD)
DESCRIBED BY NATIONAL GEODETIC SURVEY 1989 THE STATION IS LOCATED ABOUT 6.5 KM (4.05 MI) EAST-NORTHEAST OF KEARNEY, AT THE KEARNEY MUNICIPAL AIRPORT. OWNERSHIP--CITY OF KEARNEY, KEARNEY, NE 68847. AIRPORT MANAGER IS RODNEY JOHNSON, TELEPHONE IS 308-237-5133. TO REACH THE STATION FROM THE JUNCTION OF INTERSTATE HIGHWAY 80 AND STATE HIGHWAY 44 (EXIT 272), ON THE SOUTH SIDE OF KEARNEY, GO NORTH ON HIGHWAY 44 FOR 3.45 KM (2.15 MI) TO THE JUNCTION WITH U.S. HIGHWAY 30. TURN RIGHT AND GO EAST ON U.S. HIGHWAY 30 FOR 5.85 KM (3.65 MI) TO A PAVED ROAD LEFT. TURN LEFT AND GO NORTH FOR 1.03 KM (0.65 MI) TO A GRAVEL CROSSROAD. TURN RIGHT AND GO EAST FOR 0.08 KM (0.05 MI) TO GATE 10 WHICH IS LOCKED AFTER WORKING HOURS. PASS THROUGH THE GATE AND GO EAST ALONG THE SOUTH SIDE OF AN APRON FOR 0.21 KM (0.15 MI) TO A TAXIWAY ON THE RIGHT. BEAR RIGHT AND GO SOUTHEAST ON THE TAXIWAY FOR 0.25 KM (0.15 MI) TO THE JUNCTION WITH RUNWAY END 36 AND THE STATION ON THE EAST SIDE OF THE RUNWAY AT THE RUNWAY THRESHOLD LIGHTS. THE STATION MARK IS SET 15.2 M (49.9 FT) EAST OF THE RUNWAY EDGE, 3.2 M (10.5 FT) EAST OF THE EAST THRESHOLD LIGHT, 0.3 M (1.0 FT) NORTH OF THE LINE OF LIGHTS, ON LINE WITH THE NORTH-SOUTH MACADAM-CONCRETE LINE ON THE ABANDONED TAXIWAY AND IS RECESSED 1 CM BELOW THE SURFACE. DESCRIBED BY G.R.HEID.
06/15/1990 by NGS (GOOD)
RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1990 THE STATION IS LOCATED NEAR THE SOUTH END OF RUNWAY 18-36, 125 FT (38.1 M) EAST OF THE CENTERLINE END OF RUNWAY 36, 75 FT (22.9 M) EAST OF THE EAST EDGE OF THE RUNWAY AND 10 FT (3.0 M) EAST OF THE EAST THRESHOLD LIGHT. THE STATION IS A STANDARD TOPOGRAPHIC DISK STAMPED AP 1967 STA B SET IN THE TOP OF A 8-INCH SQUARE CONCRETE MONUMENT FLUSH WITH THE GROUND.
10/08/1991 by NGS (GOOD)
RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1991 5.9 KM (3.65 MI) EASTERLY ALONG U.S. HIGHWAY 30 FROM THE JUNCTION OF STATE HIGHWAY 44 IN KEARNEY, THENCE 1.0 KM (0.60 MI) NORTHERLY ALONG THE KEARNEY MUNICIPAL AIRPORT ENTRANCE ROAD, THENCE 0.1 KM (0.05 MI) EASTERLY ALONG A GRAVELED ROAD, THENCE 0.2 KM (0.10 MI) EASTERLY ALONG THE SOUTH EDGE OF AN APRON, THENCE 0.3 KM (0.20 MI) SOUTHEASTERLY ALONG A TAXIWAY, 15.4 M (50.5 FT) EAST OF THE EAST EDGE OF RUNWAY 36, 12.6 M (41.3 FT) NORTHEAST OF AND LEVEL WITH THE NORTHWEST EDGE OF THE TAXIWAY, 3.2 M (10.5 FT) EAST OF AND IN LINE WITH THE MOST EASTERLY OF 4 THRESHOLD LIGHTS NUMBER 50, AND THE MONUMENT IS FLUSH WITH THE GROUND SURFACE.
07/26/1995 by NGS (GOOD)
RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1995 (CFS) THE STATION IS LOCATED 8.0 MI (12.9 KM) WEST-SOUTHWEST OF GIBBON, 4.0 MI (6.4 KM) EAST-NORTHEAST OF KEARNEY, AT THE KEARNEY MUNICIPAL AIRPORT NEAR THE APPROACH END OF RUNWAY 36 AND IN LINE WITH THE THRESHOLD LIGHTS. OWNERSHIP--CITY OF KEARNEY, PO BOX 1180, KEARNEY NE 68847. AIRPORT MANAGER IS RODNEY JOHNSON, PHONE (308) 234-2318. TO REACH THE STATION FROM THE JUNCTION OF INTERSTATE HIGHWAY 80 AND STATE HIGHWAY 44 (EXIT 272) ON THE SOUTH SIDE OF KEARNEY, GO NORTH ON STATE HIGHWAY 44 FOR 2.15 MI (3.46 KM) TO AN INTERSECTION, TURN RIGHT AND GO EAST ON US HIGHWAY 30 FOR 3.65 MI (5.87 KM) TO A PAVED ROAD LEFT, TURN LEFT AND GO NORTH ON THE PAVED ROAD FOR 0.65 MI (1.05 KM) TO AN INTERSECTION, TURN RIGHT AND GO EAST ON A GRAVEL ROAD FOR 0.05 MI (0.08 KM) TO A GATE, PASS THROUGH GATE, CONTINUE AHEAD AND GO EAST ON THE APRON FOR 0.15 MI (0.24 KM) TO THE EAST EDGE OF THE APRON, TURN RIGHT AND GO SOUTHEAST ON A TAXIWAY FOR 0.2 MI (0.3 KM) TO THE RUNWAY THRESHOLD AND THE STATION TO THE LEFT AND ACROSS THE RUNWAY. THE STATION IS 125.0 FT (38.1 M) EAST OF THE RUNWAY CENTER, 41.3 FT (12.6 M) NORTHEAST OF THE NORTHEAST EDGE OF A TAXIWAY, 10.5 FT (3.2 M) EAST OF THE MOST EASTERLY OF FOUR THRESHOLD LIGHTS. THIS STATION TO BE USED AS SACS.
07/24/1997 by NGS (GOOD)
RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1997 (AJL) RECOVERED AS DESCRIBED

Control Text

  • This mark is at Kearney Municipal Airport (EAR)
  • The horizontal coordinates were established by GPS observations and adjusted by the National Geodetic Survey in September 1997.
  • The orthometric height was determined by differential leveling and adjusted by the National Geodetic Survey in May 1993.
  • The X, Y, and Z were computed from the position and the ellipsoidal ht.
  • The Laplace correction was computed from DEFLEC99 derived deflections.
  • The ellipsoidal height was determined by GPS observations and is referenced to NAD 83.
  • 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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