Details for Benchmark: FV0735
N 35° 10.867 W 120° 43.383 (NAD 83)
Coordinates may not be exact. Altitude is ADJUSTED and location is SCALED. (more info)
- In SAN LUIS OBISPO county, CA View Original Datasheet
- G 828 RESET
- Marker Type:
- bench mark disk
- set into the top of a round concrete monument
- May hold, but of type commonly subject to surface motion.
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Documented History (by the NGS)
|01/01/1969 by CGS (MONUMENTED)
|DESCRIBED BY COAST AND GEODETIC SURVEY 1969
0.7 MI NE FROM AVILA. 0.7 MILE NORTHEAST ALONG THE AVILA HIGHWAY FROM THE POST OFFICE AT AVILA, ON THE PROPERTY OF THE UNION OIL COMPANY, 1.0 FOOT WEST OF THE NORTH GATE POST OF AN INSET GATE ALONG THE EAST HIGHWAY RIGHT-OF-WAY FENCE, 61.3 FEET EAST OF THE CENTER OF THE HIGHWAY, 47.5 FEET NORTHEAST OF BENCH MARK G 828 1947, 30.0 FEET NORTHEAST OF A BLACK WALNUT TREE, 29.0 FEET EAST-SOUTHEAST OF A BLACK WALNUT TREE, 43.3 FEET NORTHEAST OF A GUYED TELEPHONE POLE AND 7.5 FEET NORTH OF THE CENTER OF A FIELD ENTRANCE ROAD AND GATE. THE BENCH MARK DISK IS SET IN THE TOP OF A 10 INCHES IN DIAMETER CYLINDRICAL CONCRETE POST THAT PROJECTS 4 INCHES ABOVE THE GROUND SURFACE.
|02/10/1989 by NGS (GOOD)
|RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1989
RECOVERED IN GOOD CONDITION. A NEW DESCRIPTION FOLLOWS. 1.5 KM (0.95 MI) WESTERLY ALONG AVILA ROAD FROM THE JUNCTION OF FRONT STREET IN AVILA BEACH, 25.3 M (83.0 FT) SOUTH OF THE CENTER OF A FIELD ENTRANCE, 19.0 M (62.3 FT) EAST OF THE CENTERLINE OF THE ROAD, 9.1 M (29.9 FT) NORTHEAST OF THE MOST SOUTHERLY 1 OF 2 BLACK WALNUT TREES, 0.8 M (2.6 FT) ABOVE THE LEVEL OF THE HIGHWAY, 0.25 M (0.8 FT) WEST OF A WITNESS POST, AND IN A CONCRETE POST THAT IS FLUSH WITH THE GROUND SURFACE.
- 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.