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Details for Benchmark: DB0362

N 32° 42.800 W 115° 05.667 (NAD 83)

Altitude: 129.11

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

Location:
In IMPERIAL county, CA View Original Datasheet
Designation:
V 613 RESET
Marker Type:
bench mark 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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Found the mark in good condition using the previous finder's coordinates.

Recovered in good condition. Handheld GPSr (HH2) indicated coordinates of N 32 42 49.3 W 115 05 42.8 (DMS).

[Photos:]
photoDB0362 V 613 RESET closeup
photoDB0362 V 613 RESET wide view southwest

Documented History (by the NGS)

01/01/1967 by CGS (MONUMENTED)
01/01/1971 by NGS (GOOD)
DESCRIBED BY NATIONAL GEODETIC SURVEY 1971 18.6 MI SE FROM HOLTVILLE. 18.55 MILES SOUTHEAST ALONG COUNTY ROAD S 80 FROM THE JUNCTION OF HOLT AVENUE IN HOLTVILLE, 0.5 MILE NORTHWEST OF THE JUNCTION OF STATE HIGHWAY 98, 0.25 MILE NORTHWEST OF A POWER LINE CROSSING, 214 FEET NORTHEAST OF THE CENTER LINE OF THE ROAD, 266.0 FEET NORTH-NORTHEAST OF BENCH MARK V 613, 1.4 FEET NORTHWEST OF A WITNESS POST, 1.7 FEET SOUTHEAST OF A WITNESS POST, ABOUT LEVEL WITH THE ROAD AND IN THE TOP OF A CONCRETE POST WHICH PROJECTS 0.4 FOOT. SEC 34, T16S, R18E
01/01/1974 by NGS (GOOD)
RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1974 RECOVERED IN GOOD CONDITION.
01/01/1977 by NGS (GOOD)
RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1977 RECOVERED IN GOOD CONDITION.
01/01/1981 by NGS (GOOD)
RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1981 RECOVERED IN GOOD CONDITION.
01/01/1981 by NGS (GOOD)
RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1981 RECOVERED IN GOOD CONDITION.
01/01/1984 by CA-025 (GOOD)
RECOVERY NOTE BY IMPERIAL COUNTY CALIFORNIA 1984 RECOVERED IN GOOD CONDITION.
09/10/1987 by CA-025 (GOOD)
RECOVERY NOTE BY IMPERIAL COUNTY CALIFORNIA 1987 RECOVERED IN GOOD CONDITION.
10/26/1990 by CA-025 (GOOD)
RECOVERY NOTE BY IMPERIAL COUNTY CALIFORNIA 1990 18.55 MILES (29.85 KM) SOUTHEAST ALONG COUNTY ROAD S 80 FROM THE JUNCTION OF HOLT AVENUE IN HOLTVILLE, 0.5 MILE (0.8 KM) NORTHWEST OF THE JUNCTION OF STATE HIGHWAY 98, 0.25 MILE (0.40 KM) NORTHWEST OF A POWER LINE CROSSING, 214 FEET NORTHEAST OF THE CENTER LINE OF THE ROAD, 266.0 FEET NORTH-NORTHEAST OF BENCH MARK V 613, 1.4 FEET NORTHWEST OF A WITNESS POST, 1.7 FEET SOUTHEAST OF A WITNESS POST, ABOUT LEVEL WITH THE ROAD AND IN THE TOP OF A CONCRETE POST WHICH PROJECTS 0.4 FOOT. IN T16S R18E SEC 34.
10/25/1993 by CA-025 (GOOD)
RECOVERY NOTE BY IMPERIAL COUNTY CALIFORNIA 1993 (CHL) 6.35 MI (10.22 KM) EAST ALONG HWY 115 FROM THE JUNCTION OF HOLT AVENUE IN HOLTVILLE TO EVAN HEWES HWY, THENCE 11.8 MI (19.0 KM) ALONG EVAN HEWES HWY TO THE MARK, 0.5 MI (0.8 KM) NORTHWEST OF THE JUNCTION OF STATE HIGHWAY 98, 0.25 MI (0.40 KM) NORTHWEST OF A POWER LINE CROSSING, 214 FT (65.2 M) NORTHEAST OF THE CENTER LINE OF THE ROAD, 266.0 FT (81.1 M) NORTH-NORTHEAST OF BENCH MARK V 613, 1.4 FT (0.4 M) NORTHWEST OF A WITNESS POST, 1.7 FT (0.5 M) SOUTHEAST OF A WITNESS POST, ABOUT LEVEL WITH THE ROAD AND IN THE TOP OF A CONCRETE POST WHICH PROJECTS 0.4 FT (12.2 CM) IN T16S R18E SEC 34.

Control Text

  • 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 March 1994.
  • 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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