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suitable for GPS? not me!!

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(@deleted-user)
Posts: 8349
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Those zany Power Squadron guys were up to it again in 2003.
This is one of my favorites of all time..

DESIGNATION - COVINGTON W MUN TANK
BJ4211 PID - BJ4211
BJ4211 STATE/COUNTY- LA/ST TAMMANY
BJ4211 COUNTRY - US
BJ4211 USGS QUAD - COVINGTON (1994)
BJ4211
BJ4211 *CURRENT SURVEY CONTROL
BJ4211 ______________________________________________________________________
BJ4211* NAD 83(1992) POSITION- 30 28 33.15309(N) 090 06 46.93062(W) ADJUSTED
BJ4211* NAVD 88 ORTHO HEIGHT - **(meters) **(feet) NOT PUB
BJ4211 **This station is located in a suspected subsidence area (see below).
BJ4211 ______________________________________________________________________
BJ4211 LAPLACE CORR - -0.62 (seconds) DEFLEC12A
BJ4211 GEOID HEIGHT - -26.84 (meters) GEOID12A
BJ4211 HORZ ORDER - THIRD
BJ4211
BJ4211.The horizontal coordinates were established by classical geodetic methods
BJ4211.and adjusted by the National Geodetic Survey in January 1993.
BJ4211.
BJ4211 ** This station is in an area of known vertical motion. If no
BJ4211 ** orthometric height is shown in the current survey control section,
BJ4211 ** all orthometric heights are considered suspect and are only
BJ4211 ** available in the superseded section if suspect heights were
BJ4211 ** requested.
BJ4211
BJ4211.The Laplace correction was computed from DEFLEC12A derived deflections.
BJ4211
BJ4211. The following values were computed from the NAD 83(1992) position.
BJ4211
BJ4211; North East Units Scale Factor Converg.
BJ4211;SPC LA S - 219,640.907 1,117,169.205 MT 0.99996000 +0 36 36.6
BJ4211;SPC LA S - 720,605.21 3,665,245.97 sFT 0.99996000 +0 36 36.6
BJ4211;UTM 15 - 3,375,061.474 777,160.263 MT 1.00054777 +1 27 54.5
BJ4211
BJ4211 SUPERSEDED SURVEY CONTROL
BJ4211
BJ4211 NAD 83(1986)- 30 28 33.16629(N) 090 06 46.92852(W) AD( ) 3
BJ4211 NAD 27 - 30 28 32.47325(N) 090 06 46.64661(W) AD( ) 3
BJ4211
BJ4211 ** No published orthometric height exists and therefore all are
BJ4211 ** considered suspect. This station did not take part in a recent
BJ4211 ** survey which established orthometric heights in the area. Therefore,
BJ4211 ** any previously published orthometric heights have not been validated.
BJ4211 ** NGS does not recommend using suspect or superseded heights as control
BJ4211 ** unless they can be validated or a new NAVD88 height established.
BJ4211 ** If this station were to take part in a new project and submitted
BJ4211 ** to NGS a new height could be published.
BJ4211
BJ4211.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums.
BJ4211.See file dsdata.txt to determine how the superseded data were derived.
BJ4211
BJ4211_U.S. NATIONAL GRID SPATIAL ADDRESS: 15RYP7716075061(NAD 83)
BJ4211
BJ4211_MARKER: 53 = ELEVATED TANK
BJ4211_SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR
BJ4211+SATELLITE: SATELLITE OBSERVATIONS - October 10, 2003
BJ4211
BJ4211 HISTORY - Date Condition Report By
BJ4211 HISTORY - 1970 FIRST OBSERVED NGS
BJ4211 HISTORY - 20031010 GOOD USPSQD
BJ4211
BJ4211 STATION DESCRIPTION
BJ4211
BJ4211'DESCRIBED BY NATIONAL GEODETIC SURVEY 1970 (LGB)
BJ4211'COVINGTON WEST MUNICIPAL WATER TANK IS LOCATED IN THE WEST SIDE OF
BJ4211'TOWN, ABOUT 120 FEET SOUTHWEST OF THE SOUTH FILMORE-WEST 15TH
BJ4211'STREETS INTERSECTION.
BJ4211'
BJ4211'A STEEL TANK, OVAL SHAPED ROOF, SILVER IN COLOR, 180 FEET IN HEIGHT,
BJ4211'SUPPORTED BY 4-STEEL TUBULAR SHAPED LEGS.
BJ4211'
BJ4211'POINT INTERSECTED, WAS TOP-CENTER.
BJ4211
BJ4211 STATION RECOVERY (2003)
BJ4211
BJ4211'RECOVERY NOTE BY US POWER SQUADRON 2003 (RLR)
BJ4211'A NEW WATER TANK HAS BEEN ERECTED IN PLACE OF THE OLD TANK NEAR THE
BJ4211'SAME LOCATION. 16TH ST. AND S FILMORE
BJ4211'THE STEEL TANK IS ROUND WITH 4 TUBULAR LEGS AND PAINTED LIGHT TAN IN
BJ4211'COLOR WITH LETTERING CITY OF COVINGTON. IT IS 72 FEET SOUTH OF 16TH ST
BJ4211'AND 123 FEET SW OF S FILMORE ST.

 
Posted : April 24, 2013 8:15 pm
(@bill93)
Posts: 9834
 

Well, if you get on top I'm pretty sure you'd have clear sky from 15^ above the horizon. 😛

The replacement tank might have a coordinate problem, though. NGS has, for a few years now, said they no longer want reports on intersection stations like tanks, spires, and towers. So the confusion over waterspheres vs old tanks should go away.

 
Posted : April 24, 2013 8:30 pm
(@kent-mcmillan)
Posts: 11419
 

Hey, you're not one of them "expert measurers", are you? The original data sheet called for a water tank and you've got you a water tank. What more do you need, bubba?
Sure, one of them academic types might complain that it ain't the SAME water tank, but obviously it's the water tank that the town agrees is the water tank, so it's clearly an ESTABLISHED control point that you would be messin' with a whole bunch of stuff to question.

Now this whinging about the tank not being suitable for GPS observation is just sad. It's a piece of cake. Why, you don't even need you a tripod. You can lay your antenna right on the top of the tank and get you a good reading on it.

 
Posted : April 24, 2013 10:11 pm
(@rankin_file)
Posts: 4016
 

STOP IT!!!!!! your killing me!

That really struck me as funny this am.

 
Posted : April 25, 2013 4:15 am
(@shawn-billings)
Posts: 2689
Registered
 

:good:

 
Posted : April 25, 2013 6:30 am
(@andy-j)
Posts: 3121
 

RIGHT!! I mean, it's the TOWN's water tank.. who are you to go around saying it's not where it is. You goofy surveyors just don't understand the real world. Now go locate some power poles or a fence line and be quiet.

 
Posted : April 25, 2013 6:56 am
(@deleted-user)
Posts: 8349
Registered
Topic starter
 

hmmm.
but I guess it didn't pass the 'durable' monument test also. 🙁

 
Posted : April 25, 2013 6:59 am