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Details for Benchmark: DU2319

N 33° 24.933 W 111° 47.033 (NAD 83)

Altitude: 1255.36

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

Location:
In MARICOPA county, AZ View Original Datasheet
Designation:
C 518
Marker Type:
vertical control disk
Setting:
abutments and piers of large bridges
Stability:
Probably hold position/elevation well.

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Recovered in good condition at N 33 24.934 W 111 47.053.

[Photos:]
photoDU2319(C 518) - Mesa AZ
photoDU2319 - Eye level
photoDU2319 - Looking W

Found

[Photos:]
photo

Out with geohubby today in the area. We tried to locate this one a few days ago but were unsuccessful. After reading "merlot's" log, we decided to try again. This time we located it at least 20 feet from "merlot's" coordinates.

N 33° 24.932 W 111° 47.053

We went back today after reading Merlots logs, should have read them before we went out the first time.
We found C518 today, we found it about 22 feet east from Merlots posted coordinates.

[Photos:]
photo20150403_143318

Found as described.

Found at N33 24.931 W111 47.056

[Photos:]
photoclose-up of benchmark
photogps and benchmark

Found in good shape, as described.

[Photos:]
photoDU2319
photoDU2319 Wide

I come back from my son`s wedding and a pick up a couple benchmarks.

[Photos:]
photoDU2319
photoDU2319
photoDU2319

Very easy to locate.

took a trip down main for a few bms today.easily visible.

[Photos:]
photobm
photobm with gps phone

Found as drescribed

[Photos:]
photoIMG00083
photoIMG00085
photoIMG00086

Recovered. Other pictures below show current state.

[Photos:]
photoDU2319 - Mark and GPSr

Recovered in good condition.

[Photos:]
photoCloseup of the mark
photoMark with my GPSr (featuring dead batteries)
photoLooking west with mark in foreground

Recovered. Pic included.

[Photos:]
photoClose-Up of GPS and BM

Found as described.

[Photos:]
photoC518
photoC518 GPS
photoC518 looking West

Recovered as described.

[Photos:]
photoC 518 / DU2319

15:34:55 1163 ft N33 24.930 W111 47.053
found in good condition

[Photos:]
photothe bm with my gps
photothe bm
photothe bm looking west towards benchmark
photothe bm with numbers????

Recovered as described in good condition at:
N 33° 24.935 W 111° 47.053 (NAD 83).

[Photos:]
photoDU2319 - Benchmark - Maricopa County, AZ
photoDU2319 - Northeast looking Southwest

Found with no problem at 8:59 this morning.

[Photos:]
photoDU2319.jpg
DU2319

Easy find a block and a half from home.

Easy find if only they were all like this.

[Photos:]
photoDU2319
The BM
photoDU2319 View North
A view North across Main st down the canal.
photoDU2319 South View
View South across Main st down the canal

Documented History (by the NGS)

01/01/1992 by NGS (MONUMENTED)
DESCRIBED BY NATIONAL GEODETIC SURVEY 1992 5.2 KM (3.25 MI) EASTERLY ALONG U.S. HIGHWAY 60 (MAIN STREET) FROM THE JUNCTION OF STATE HIGHWAY 87 (COUNTRY CLUB DRIVE) IN MESA, IN TOP OF AND 0.2 M (0.7 FT) SOUTHEAST OF THE NORTHWEST END OF THE NORTHEAST CONCRETE ABUTMENT OF THE HIGHWAY BRIDGE SPANNING THE CONSOLIDATED CANAL, 2.1 M (6.9 FT) NORTH OF THE NORTH CURB OF THE HIGHWAY, 0.4 M (1.3 FT) NORTH OF THE BRIDGE RAILING, AND 0.3 M (1.0 FT) ABOVE THE LEVEL OF THE HIGHWAY.

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 November 1993.
  • 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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