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Details for Benchmark: FV0168

N 35° 24.393 W 120° 37.160 (NAD 83)

Altitude: 974.1

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

Location:
In SAN LUIS OBISPO county, CA View Original Datasheet
Designation:
SANTA F
Marker Type:
triangulation station disk
Setting:
set into the top of a round concrete monument
Stability:
May hold, but of type commonly subject to surface motion.

Reference Points

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Documented History (by the NGS)

01/01/1964 by CGS (MONUMENTED)
DESCRIBED BY COAST AND GEODETIC SURVEY 1964 (CAA) STATION IS LOCATED ABOUT 9 MILES NORTH-NORTHEAST OF SAN LUIS OBISPO, ABOUT 6-1/2 MILES SOUTH-SOUTHEAST OF ATASADERO, ABOUT 1-1/4 MILES NORTHWEST OF SANTA MARGARITA AND ON PROPERTY OF RANCHO SANTA MARGARITA. TO REACH FROM THE POST OFFICE IN SANTA MARGARITA, GO SOUTHWEST FOR 0.2 MILE TO YERBA BUENA AVENUE ON RIGHT, TURN RIGHT AND GO NORTHWEST ON YERBA BUENA AVENUE FOR 0.1 MILE TO CATTLE GUARD AND LARGE SIGN ON LEFT, RANCHO SANTA MARGARITA NO TRESPASSING, CONTINUE NORTHERLY 0.15 MILE TO BRIDGE, CONTINUE NORTHERLY 0.35 MILE TO CATTLE GUARD AND HOUSE ON LEFT, PASS THROUGH CATTLE GUARD AND CONTINUE NORTHERLY FOR 0.1 MILE THENCE LEFT (WEST) PASSING THROUGH GATE BETWEEN BARNS, THEN RIGHT AND FOLLOW MAIN ROAD NORTHERLY 0.1 MILE THENCE BEAR LEFT AND FOLLOW BLADED ROAD NORTHWESTERLY 0.2 MILE TO DRY CREEK AND SIDE ROAD RIGHT, CONTINUE STRAIGHT AHEAD WEST FOR 0.4 MILE THEN TURN RIGHT FOLLOWING BLADED ROAD NORTH 0.3 MILE TO TOP OF SECOND KNOLL, TURN RIGHT PASSING CONCRETE FEEDER ON LEFT AND GO EASTERLY DOWN SMALL RIDGE TO STATION ON LEFT AS DESCRIBED. STATION MARK, A STANDARD TRIANGULATION DISK STAMPED SANTA-F 1964, IS SET IN THE TOP OF A CONCRETE POST WHICH PROJECTS ABOUT 5 INCHES ABOVE THE SURFACE OF THE GROUND. THE MARK IS A 14 INCH SQUARE CONCRETE POST, IS 8 FEET SOUTH OF THE SOUTH EDGE OF FIELD, ON NORTH SLOPE OF SMALL RIDGE AND 3.8 FEET WEST OF WITNESS POST. REFERENCE MARK 1, A STANDARD REFERENCE DISK STAMPED SANTA-F NO 1 1964, IS SET IN THE TOP OF A CONCRETE CYLINDER WHICH PROJECTS ABOUT 3 INCHES ABOVE THE SURFACE OF THE GROUND. THE MARK IS 28 FEET EAST-SOUTHEAST OF THE WITNESS POST AND 6 FEET SOUTH OF THE SOUTH EDGE OF FIELD. REFERENCE MARK 2, A STANDARD REFERENCE DISK STAMPED SANTA-F NO 2 1964, IS SET IN THE TOP OF A CONCRETE CYLINDER WHICH PROJECTS ABOUT 3 INCHES ABOVE THE SURFACE OF THE GROUND. THE MARK IS 31.3 FEET WEST-NORTHWEST OF THE WITNESS POST AND 7 FEET SOUTH OF THE SOUTH EDGE OF FIELD. HEIGHT OF LIGHT ABOVE STATION MARK 7 METERS.
01/01/1965 by CGS (GOOD)
RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1965 (CAA) THE STATION WAS RECOVERED AS DESCRIBED IN THE 1964 DESCRIPTIONS AND ALL MARKS WERE FOUND TO BE IN GOOD CONDITION. THE DISTANCE AND THE DIRECTION WAS CHECKED TO REFERENCE MARKS 1 AND 2 AND FOUND TO BE CORRECT. THERE IS NO NOTICEABLE EARTH MOVEMENT IN THE IMMEDIATE VICINITY OF THE STATION SITE.
01/01/1966 by CGS (GOOD)
RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1966 (CS) THE STATION AND REFERENCE MARKS 1 AND 2 WERE RECOVERED IN GOOD CONDITION. TO REACH FROM THE POST OFFICE AT SANTA MARGARITA, GO 1.3 MILES SOUTHWEST ALONG STATE HIGHWAY 58, THENCE 1.55 MILES NORTH ALONG U.S. HIGHWAY 101, THENCE 0.3 MILE EAST-NORTHEAST ACROSS COUNTRY. ON THE PROPERTY OF RANCHO SANTA MARGARITA. THE STATION IS A C AND GS TRIANGULATION STATION DISK, STAMPED SANTA F 1964. 390 FEET NORTHEAST OF A WINDMILL, 570 FEET NORTHEAST OF THE NORTHWEST END OF AN EARTH DAM, 3.8 FEET WEST OF A WITNESS POST, AND SET IN THE TOP OF A CONCRETE POST PROJECTING 0.4 FOOT ABOVE THE GROUND. R.M. 1 IS A C AND GS REFERENCE MARK DISK, STAMPED SANTA F NO 1 1964. 30.77 FEET SOUTHEAST OF THE STATION, AND SET IN THE TOP OF A CONCRETE POST PROJECTING 0.2 FOOT ABOVE THE GROUND. R.M. 2 IS A C AND GS REFERENCE MARK DISK, STAMPED SANTA F NO 2 1964. 28.17 FEET NORTHWEST OF THE STATION, AND SET IN THE TOP OF A CONCRETE POST PROJECTING 0.3 FOOT ABOVE THE GROUND. AIRLINE DISTANCE AND DIRECTION FROM NEAREST TOWN--1-1/4 MILES NORTHWEST OF SANTA MARGARITA.
01/01/1968 by CGS (GOOD)
RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1968 (CND) THE STATION AND ALL MARKS WERE RECOVERED AND FOUND IN GOOD CONDITION AS DESCRIBED IN THE 1964 DESCRIPTION. THE DISTANCE AND DIRECTION TO ALL MARKS CHECKED. NO NOTICEABLE MOVEMENT IN THE AREA. AIRLINE DISTANCE AND DIRECTION FROM NEAREST TOWN--1-1/4 MILES NW OF SANTA MARGARITA.
01/01/1968 by NGS (GOOD)
RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1968 3.2 MI NW FROM SANTA MARGARITA. 1.3 MILES SOUTHWEST ALONG STATE HIGHWAY 58 FROM THE POST OFFICE AT SANTA MARGARITA, THENCE 1.55 MILES NORTH ALONG U.S. HIGHWAY 101, THENCE 0.3 MILE EAST-NORTHEAST ACROSS COUNTRY, AROUND THE NORTH END OF A RESERVOIR FROM TRIANGULATION STATION SANTA A, 390 FEET NORTHEAST OF A WINDMILL WHICH IS ON A SLOPE OF A SMALL RIDGE, 570 FEET NORTHEAST OF THE NORTHWEST END OF AN EARTH DAM, 3.8 FEET WEST OF A WITNESS POST, AND SET IN THE TOP OF A CONCRETE POST PROJECTING 0.4 FOOT ABOVE THE GROUND.
01/01/1970 by NGS (GOOD)
RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1970 RECOVERED IN GOOD CONDITION.

Control Text

  • The horizontal coordinates were established by classical geodetic methods and adjusted by the National Geodetic Survey in June 1996. The horizontal coordinates are valid at the epoch date displayed above. The epoch date for horizontal control is a decimal equivalence of Year/Month/Day.
  • The NAVD 88 height was computed by applying the VERTCON shift value to the NGVD 29 height (displayed under SUPERSEDED SURVEY CONTROL.) The vertical order pertains to the superseded datum.
  • The Laplace correction was computed from DEFLEC99 derived deflections.
  • The geoid height was determined by GEOID99.

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