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Details for Benchmark: DX2296

N 33° 48.183 W 117° 53.900 (NAD 83)

Altitude: 144.86

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

Location:
In ORANGE county, CA View Original Datasheet
Designation:
1 A 106
Marker Type:
survey disk
Setting:
light structures
Stability:
Mark of questionable or unknown stability.

Must Read!

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I don't have my old Digital Camera (since 2015) but am hopeful that this can be logged in 2017.

Two benchmarks in one night... What is happening to me?:) I was in the area searching for another benchmark when I realized that a short stroll down Katella would give me two. Still in great shape.

[Photos:]
photoDX2296 close up

As described.

[Photos:]
photoDX2296 Disc in Anaheim CA
photoDX2296 Area in Anaheim CA
South side of Katella, looking East across Lewis (at the light).

This one is right where it ought to be. Just follow the directions. It is in good condition except for a bit to much paint around its outer edge.
There is another BM about 200 feet east of this one so grab it too.

Tigger 2

[Photos:]
photoTigger with the disk.
photoClose up of the disk.
photoWide shot of the area.
Looking east along Katella.

Documented History (by the NGS)

01/01/1968 by CA-059 (MONUMENTED)
DESCRIBED BY ORANGE COUNTY CALIFORNIA 1968 AT ANAHEIM. 0.30 MILE EAST ALONG KATELLA AVENUE FROM THE SANTA ANA FREEWAY TO THE SOUTHERN PACIFIC RAILWAY CROSSING, 190 FEET EAST ALONG THE SIDEWALK FROM THE NORTHEAST RAIL OF THE TRACK, 46 FEET SOUTH OF THE CENTER LINE OF THE AVENUE, SET IN THE TOP OF THE SOUTHWEST CORNER OF A 4 FOOT BY 11 FOOT CONCRETE CATCH BASIN, 0.80 OF A FOOT HIGHER THAN THE GUTTER.
01/01/1974 by CA-059 (GOOD)
RECOVERY NOTE BY ORANGE COUNTY CALIFORNIA 1974 RECOVERED IN GOOD CONDITION.
05/30/1989 by NGS (GOOD)
RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1989 RECOVERED IN GOOD CONDITION. A NEW DESCRIPTION FOLLOWS. IN ANAHEIM, AT THE INTERSECTION OF KATELLA AVENUE AND LEWIS STREET, IN THE SOUTHWEST CORNER OF A CONCRETE CATCH BASIN, 57.9 M (190.0 FT) EAST OF THE NEAR RAIL OF THE SOUTHERN PACIFIC RAILROAD, 53.3 M (174.9 FT) WEST OF THE CENTERLINE OF THE STREET, 14.7 M (48.2 FT) SOUTH OF THE CENTER OF THE AVENUE, 0.3 M (1.0 FT) ABOVE THE LEVEL OF THE AVENUE, AND 0.1 M (0.3 FT) EAST OF THE WEST END OF THE CATCH BASIN.

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 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.

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