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Details for Benchmark: AD9506

N 33° 49.750 W 117° 30.983 (NAD 83)

Altitude: 833.51

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

Location:
In RIVERSIDE county, CA View Original Datasheet
Designation:
LF 124
Marker Type:
bench mark disk
Setting:
pavements (street, sidewalk, curb, apron, etc.)
Stability:
Mark of questionable or unknown stability.

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Found it with Team Geo-Clarks.

[Photos:]
photoAD9506
photoAD9506-1

Easy find

[Photos:]
photoAD9506

Found more or less as described. The mark found as described.

La Gloria Street may have been destroyed. It is shown on my 2 year old car nav system, and Google Earth, so it may be a recent change. No street signs for it exist at the intersection of Temescal Canyon Rd. There is an un-named dirt road heading Northeast from the intersection, but spoke to residents walking up it, and they say that is not La Gloria Street, and it is not a through street. The construction due east of the intersection (associated with the new shopping plaza to the south?) may have destroyed or re-routed La Gloria Street.

[This entry was edited by Klemmer & TeddyBearMama on Sunday, March 18, 2007 at 11:17:05 AM.]

[Photos:]
photoAD9506 Disc in Corona CA
Might be very close to Corona, but Google Earth says it's outside the city boundary, and Google Map wants to call it in "Weisel".
photoAD9506 Immediate area
As described.
photoAD9506 Area wide shot

Documented History (by the NGS)

01/01/1995 by MWDSC (MONUMENTED)
DESCRIBED BY METRO WATER DISTR SO. CALIFORNIA 1995 (DEL) CORONA, CA. 15 FREEWAY EXIT CAJALCO RD EASTERLY ON CAJALCO RD TO TEMESCAL CANYON RD, LEFT/NORTH ALONG TEMESCAL 0.45 MILE (0.72 KM) TO LA GLORIA ST 56 FEET (17.1 M) WESTERLY OF TEMESCAL CYN RD AND 40 FEET (12.2 M) SOUTHERLY OF LA GLORIA ST TO A MWD VALVE AND METER STRUCTURE AT STATION 216+84 ON 2 BY 9.7 FOOT CONCRETE PAD FOR METER BOX SERVICE CONNECTION, 13 FEET (4.0 M) EASTERLY OF POWER POLE 569623E AND 10.4 FEET (3.2 M) WESTERLY OF MWD MH 216+83. SET A MWDSC 3 INCH BRASS DISK STAMPED LF 124 1995 FLUSH IN THE TOP OF THE NORTHERLY PAD. REF.MWD FB 2016 02 031 AND TB RV CO 774/A4 1996.

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 August 1997.
  • 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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