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Details for Benchmark: DY0956

N 33° 43.600 W 118° 02.467 (NAD 83)

Altitude: 12.9

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

Location:
In ORANGE county, CA View Original Datasheet
Designation:
RCE 7872 O CO
Marker Type:
survey disk
Setting:
light structures
Stability:
Mark of questionable or unknown stability.

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Found in good condition.

[Photos:]
photoDY0956 RCE 7872 O CO 19?

Kinda beat up... but there, for a long time!

Recovered as described. Folks, it is normal for the coordinates to be off by over 100 ft for this type mark (called "scaled"). It is accurate in elevation, but not in location.

[Photos:]
photoDY0956 in Huntington Beach CA
photoDY0956 Area
photoDY0956 Looking North on Bolsa Chica Ave

This was my first bench mark..Found it, however I too found that the cords where about 115 ft. off.

THIS IS MY FIRST LOGGED "BENCHMARK". OUR DAUGHTER WENT TO SCHOOL ON THE STREET IT BORDERS ON. IT WAS A QUICK FIND THANKS TO PREVIOUS LOGS AND IMAGES. I ENJOYED LEARNING ABOUT BENCHMARKS AND SURVEYING. THERE'S ALOT TO IT!!

[Photos:]
photoBENCHMARK SURROUNDINGS
photoFOUND IT!
photoBENCHMARK CLOSE UP

Found this but coordinates seemed off by 120ft.

One or the other

First benchmark find for GeoYmas & WalkaboutSam, less than a mile from home. Not much excitement though, can't compare with finding a cache.

<P>[b]<FONT SIZE=4 COLOR=FF0000>First to find!</FONT>[/b][br][br] <FONT COLOR=FF0000>Happy Hunting!</FONT> - <FONT COLOR=0000FF>Liberty Lover </FONT></P>
[Photos:]
photoMarker
photoLocation

Documented History (by the NGS)

Unknown by CA-059 (MONUMENTED)
01/01/1965 by NGS (GOOD)
DESCRIBED BY NATIONAL GEODETIC SURVEY 1965 2.3 MI E FROM HUNTINGTON BEACH. 1.4 MILES EAST ALONG WARNER AVENUE FROM THE JUNCTION WITH THE PACIFIC COAST HIGHWAY (CALIFORNIA STATE HIGHWAY 1) AT SUNSET BEACH, THENCE 0.9 MILE NORTH ALONG BOLSA CHICA AVENUE, 58 FEET NORTH OF THE CENTER OF SISSON DRIVE, 45 FEET EAST OF THE CENTER OF BOLSA CHICA AVENUE, 5 FEET SOUTH OF A FIREPLUG AND CEMENTED IN A DRILL HOLE IN THE WEST SIDE OF A CONCRETE FOUNDATION FOR A STREET LAMP.
01/01/1968 by NGS (GOOD)
RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1968 RECOVERED IN GOOD CONDITION.

Control Text

  • The horizontal coordinates were scaled from a topographic map and have an estimated accuracy of +/- 6 seconds.
  • 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 geoid height was determined by GEOID99.

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