Skip to Content

Details for Benchmark: DX3147

N 33° 55.083 W 117° 53.833 (NAD 83)

Altitude: 375.9

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

Location:
In ORANGE county, CA View Original Datasheet
Designation:
A 425
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.

Must Read!

Benchmarks may be on private property or in dangerous locations. Obey local laws. By using the services on Geocaching.com you agree to this disclaimer.

Found almost covered over with lawn grass.

[Photos:]
photoA 425
Located in parking strip about 2' from the curb, and 6' to the north of a standing telephone J-Box.

Like Tigger said, it's there as described. Unusual for it to have survived, as almost all of the many in this area have been lost.

[Photos:]
photoDX3147 Disc in Brea CA
photoDX3147 Area in Brea CA

This one is a little bit tricky. The housing in the area has gone from single family homes to apartments, so the reference to the building is no longer applicable. However, the "100 feet south of Ash St." and the "1 foot from the curb" is acurate, and that is all you really need to find it. The disk is a bit the worse for wear because lawn mowers have beat it up pretty good. Kind of a "Death by a Thousand Cuts" thing. And if they have not mowed the lawn for a while, it may cover the disk.

Tigger 2

[This entry was edited by tigger2 on Sunday, December 11, 2005 at 10:17:56 AM.]

[This entry was edited by tigger2 on Sunday, December 11, 2005 at 10:20:04 AM.]

[Photos:]
photoTigger with the disk.
photoClose up of the disk.
photoWide shot of the area.
Looking north along Orange Ave.

Documented History (by the NGS)

01/01/1935 by CGS (MONUMENTED)
01/01/1949 by NGS (GOOD)
DESCRIBED BY NATIONAL GEODETIC SURVEY 1949 IN BREA. ON THE WEST SIDE OF SOUTH ORANGE AVENUE, 100.5 FEET SOUTH OF THE SOUTH CURB OF EAST ASH STREET, 48.5 FEET SOUTH OF THE SOUTHEAST CORNER OF THE BROWN AND DAUSER LUMBER CO. OFFICE BUILDING, 4 FEET EAST OF THE SIDEWALK, AND 1 FOOT WEST OF THE CURB.
01/01/1967 by MWDSC (GOOD)
RECOVERY NOTE BY METRO WATER DISTR SO. CALIFORNIA 1967 RECOVERED IN GOOD CONDITION.
06/06/1998 by USPSQD (GOOD)
RECOVERY NOTE BY US POWER SQUADRON 1998 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.

Advertising with Us

Return to the Top of the Page