How to log a "reset"

[gwnga]

What is the proper way to log a benchmark that has been reset?

 

For example, PID AA2838 was destroyed during road construction, but a benchmark with the same designation was reset (FY 02 reset).

 

The details on the Geocaching website do not reflect the current NGS Datasheet for this station, I may have made a mistake by logging this find.

 

Can anyone shed some light on this for me?

 

Thanks,

Greg

[+GEO*Trailblazer 1]

In Missouri,I talked to the DNR and State Surveyors.The mark is usually set at the same point,unless otherwise stated.The Cost of setting these marks are high and there is a second mark underground in case the surface monument is disturbed.

 

WHEN ALL ELSE FAILS *GEOTRYAGAIN* http://www.msnusers.com/MissouriTrails

[+beejay&esskay]

I took a look at the picture posted for AA2838, and it isn't a standard NGS disk, but rather a disk from a local construction firm.

 

Also, the NGS site has this as the last entry for AA2838:

 

quote:

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AA2838 STATION RECOVERY (2001)

AA2838

AA2838'RECOVERY NOTE BY FORSYTH COUNTY GEORGIA 2001 (JMK)

AA2838'MARK IS DESTORYED THE CURBED TRIANGULAR CONCRETE APRON, LOCATED IN THE

AA2838'MEDIAN OF BALD RIDGE ROAD, BETWEEN THE OFF AND ON RAMP OF HIGHWAY 400

AA2838'SOUTH TO BALD RIDGE ROAD WAS REMOVED BY A DOT CONSTRUCTION CREW, ROAD

AA2838'PROJECT.

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If a mark is reset, would we expect the NGS to have a reference to that fact? Is it "kosher" for a local firm to do their own reset if their construction destroys the mark?

 

(And, somewhat related, I've found a NGS disk marked "reset" locally, but the NGS site says "to be reset" and never had an entry that it was. Normal?)

[Z15]

There are specified procedures for resetting a BM. I have done it many times.

 

NGS requires the following information before they will publish it.

 

They have form to fill out.

 

 

[This message was edited by elcamino on March 13, 2003 at 05:20 AM.]

[survey tech]

Yes, resetting markers is and always has been kosher, and is very often done by contractors who have proven that they have the capability to do it properly. In the past it was more difficult to reset a marker in the exact same place and this was seldom attempted. Thanks to technology, it is now easier to accomplish and will probably become increasingly common in the future. This marker may or may not be in the same place. It was reset very recently, so the data has not been fully processed. Presumably, it will show up in the database eventually, either under the same PID with an updated description, or under a new PID with slightly different horizontal and vertical data, if it is not in exactly the same place. Pending that information, I would have to consider the original AA2838 not found, since the original disk is obviously no longer in place and there is, at present, no way of positively determining whether the new disk marks the same point

[Z15]

Here is one we reset a few years back. We set the disk, did the level work, checked and rechecked it. Set it to the NGS state advisor along with all the field notes and he took care of publishing it. Took about 1 month.

 

He told us many times that he gets a lot of resets from others who do not do the work properly or use sub-standard equipment.

quote:

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The NGS Data SheetSee file dsdata.txt for more information about the datasheet.DATABASE = Sybase ,PROGRAM = datasheet, VERSION = 6.73

1 National Geodetic Survey, Retrieval Date = MARCH 14, 2003

AE9966 ***********************************************************************

AE9966 DESIGNATION - E 329 RESET

AE9966 PID - AE9966

AE9966 STATE/COUNTY- MI/MARQUETTE

AE9966 USGS QUAD - NEGAUNEE (1975)

AE9966

AE9966 *CURRENT SURVEY CONTROL

AE9966 ___________________________________________________________________

AE9966* NAD 83(1986)- 46 30 43. (N) 087 36 06. (W) SCALED

AE9966* NAVD 88 - 429.88 (meters) 1410.4 (feet) RESET

AE9966 ___________________________________________________________________

AE9966 GEOID HEIGHT- -33.94 (meters) GEOID99

AE9966

AE9966 VERT ORDER - THIRD

AE9966

AE9966.The horizontal coordinates were scaled from a topographic map and have

AE9966.an estimated accuracy of +/- 6 seconds.

AE9966

AE9966.The orthometric height was computed from unverified reset data.

AE9966

AE9966.The geoid height was determined by GEOID99.

AE9966

AE9966; North East Units Estimated Accuracy

AE9966;SPC MI N - 192,300. 7,953,830. MT (+/- 180 meters Scaled)

AE9966

AE9966 SUPERSEDED SURVEY CONTROL

AE9966

AE9966.No superseded survey control is available for this station.

AE9966

AE9966_U.S. NATIONAL GRID SPATIAL ADDRESS: 16TDS538511(NAD 83)

AE9966_MARKER: DV = VERTICAL CONTROL DISK

AE9966_SETTING: 66 = SET IN ROCK OUTCROP

AE9966_STAMPING: E 329 RESET 1998

AE9966_MARK LOGO: NGS

AE9966_MAGNETIC: N = NO MAGNETIC MATERIAL

AE9966_STABILITY: A = MOST RELIABLE AND EXPECTED TO HOLD

AE9966+STABILITY: POSITION/ELEVATION WELL

AE9966

AE9966 HISTORY - Date Condition Report By

AE9966 HISTORY - 1998 MONUMENTED MIDT

AE9966 HISTORY - 20011011 GOOD USPSQD

AE9966

AE9966 STATION DESCRIPTION

AE9966

AE9966'DESCRIBED BY MICHIGAN DEPARTMENT OF TRANSPORTATION 1998 (SHN)

AE9966'STATION IS LOCATED AT NEGAUNEE, ALONG US HIGHWAY 41 AND STATE HIGHWAY

AE9966'M-28, IN THE SOUTHWEST SIDE OF A LARGE PROMINENT ROCK OUTCROP

AE9966'SOUTHEAST OF THE HIGHWAY. IT IS ABOUT 0.17 KM (0.10 MI) SOUTHWEST OF

AE9966'THE JUNCTION WITH COUNTY ROAD 492 (MAAS ST) AND A TRAFFIC SIGNAL, 16.3

AE9966'M (53.5 FT) NORTHEAST OF THE CENTERLINE OF THE NORTHEAST DRIVE

AE9966'ENTRANCE TO THE FERRELL GAS OFFICE/STORE AND BULK PLANT, 10.6 M (34.8

AE9966'FT) SOUTHEAST OF THE BACK OF CURB, 5.2 M (17.1 FT) NORTH OF A POWER

AE9966'POLE, 1.4 M (4.6 FT) SOUTHEAST OF A CALCITE VEIN AT THE NORTHWEST

AE9966'CORNER OF THE ROCK OUTCROP, 0.55 M (1.80 FT) NORTHEAST OF A CARSONITE

AE9966'WITNESS POST, AND 0.3 M (1.0 FT) EAST OF THE NORTHWEST CORNER OF THE

AE9966'LOWEST LEDGE ON THE SOUTHWEST SIDE. A STANDARD VERTICAL CONTROL DISK

AE9966'SET IN A DRILL HOLE ABOUT 1.1 M (3.6 FT) ABOVE LEVEL WITH THE HIGHWAY.

AE9966'DESCRIBED BY MIKE RAFFAELLI, SURVEY TECH - MIDT.

AE9966

AE9966 STATION RECOVERY (2001)

AE9966

AE9966'RECOVERY NOTE BY US POWER SQUADRON 2001 (BAA)

AE9966'RECOVERED IN GOOD CONDITION.

 

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