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Details for Benchmark: CS1823

N 32° 44.211 W 097° 05.817 (NAD 83)

Altitude: 587.74

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

Location:
In TARRANT county, TX View Original Datasheet
Designation:
L 98
Marker Type:
bench mark disk
Setting:
footings/foundation walls of small/medium structures
Stability:
May hold, but of type commonly subject to surface motion.

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Found this one while 6 mile ruck this morning. A little beat, but in good condition otherwise. Logged with NGS since last recovery was 2012.

[Photos:]
photoL-98 monument

Working on a 2015 Geocache challenge with GeoHermance.

Out hunting Benchmarks with KJBandit

[Photos:]
photoL 98

Found this one just before noon.

[Photos:]
photothe disk
photoThe train even stopped for us

Found it with TX Cronins while working on the busy day portion of our 2015 to do list challenge

[Photos:]
photoimage

Found this working on my '2015 to-do-list challenge. Look out for trains.

[Photos:]
photoMarker
photoPicture of the area
Use caution. Train track is 3 ft from disk.

Found it during our Busy day challenge for the 2015 challenge

[Photos:]
photoBenchmark CS1823
Benchmark CS1823

Found while out geocaching today.

[Photos:]
photoIMG_8970

Found a few benchmarks while downtown Arlington, Texas.

[Photos:]
photoL 98 (CS1823)
Benchmark, disk type, Arlington Texas
photoL 98 (CS1823)
Benchmark area view

Found while in the area, well marked

[Photos:]
photoMark

Grabbed this one today while I was caching in the area. Busy area! Mark is in good shape.

[Photos:]
photoArea
photocloseup

Found on a caching and benchmark day.

[Photos:]
photoCloseup
photoArea

Great condition.

[Photos:]
photoTracks
photoTracks 2
photoTracks coordinates

Found with Amada

[Photos:]
photocs1823.jpg
photocs1823&car.jpg
photocs1823tracks.jpg

I found the station in good condition. As is obvious by the photos below (better than mine), the signal is gone.

In good condition easy to find. Trains didn't come by while I was there.

Found in good condition.

[Photos:]
photoCS1823

This benchmark is in good condition and is easy to find, using the data sheet description. GPS coordinates appear to be correct also. You may have to walk about 80 to 100 yards from the nearest parking spot.

Use caution -- trains come by often... and fast.

[Photos:]
photoCS1823 -1
Looking east from Collins St., the mark is about 25 yards from the street.
photoCS1823 -2
This must be benchmark L-98.
photoCS1823 -3
Now there is no doubt, it is L-98.

This one was actually dead on per my eTrex Legend GPS :)

2nd of the day

[Photos:]
photoBenchmark #2 for the day

Second one for the day. My 5 year old son actually found it! If it had been a snake I'd have been bit, several times over.

[Photos:]
photo1st disk of the day ... 2nd benchmark of the day!
N 32° 44.212 W 097° 05.818

My second find. My GPS was a little off but not far.

[Photos:]
photoDisk
south of tracks & east of road.

Darn somebody beat me to it first. Great condition.

[Photos:]
photoCS1823

My 5th disc of the day. Exactly as decribed in 1994. Who needs a gps?

[Photos:]
photoBM CS1823 Disc

Documented History (by the NGS)

01/01/1951 by CGS (MONUMENTED)
DESCRIBED BY COAST AND GEODETIC SURVEY 1951 0.6 MI E FROM ARLINGTON. 0.6 MILE EAST ALONG THE TEXAS AND PACIFIC RAILROAD FROM THE STATION AT ARLINGTON, AT THE CROSSING OF NORTH COLLINS STREET, AT BLOCK SIGNAL 2320, 100 FEET EAST OF THE CENTER LINE OF NORTH COLLINS STREET, 9.2 FEET SOUTH OF THE SOUTH RAIL OF THE SOUTH TRACK, 1.5 FEET ABOVE THE GROUND, SET IN THE TOP OF THE WEST CONCRETE FOUNDATION OF THE BLOCK SIGNAL.
01/01/1980 by LOCSUR (GOOD)
RECOVERY NOTE BY LOCAL SURVEYOR (INDIVIDUAL OR FIRM) 1980 RECOVERED IN GOOD CONDITION.
01/01/1986 by NGS (GOOD)
RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1986 RECOVERED IN GOOD CONDITION. A NEW DESCRIPTION FOLLOWS. IN ARLINGTON, AT THE INTERSECTION OF COLLINS AVENUE AND THE MISSOURI PACIFIC RAILROAD, IN THE NORTHWEST CORNER OF THE CONCRETE FOUNDATION OF THE SOUTH LEG OF A SIGNAL TOWER, 34.1 M (111.9 FT) EAST OF THE CENTERLINE OF THE AVENUE, AND 2.8 M (9.2 FT) SOUTH OF THE NEAR RAIL. THE MARK IS ABOVE LEVEL WITH THE TRACKS.
04/12/1988 by (GOOD)
RECOVERED 1988 RECOVERED IN GOOD CONDITION.
10/03/1994 by NGS (GOOD)
RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1994 (GAS) IN ARLINGTON, AT THE INTERSECTION OF THE MISSOURI PACIFIC RAILROAD AND COLLINS AVENUE, NEAR THE NORTHWEST CORNER OF THE CONCRETE FOOTING FOR A FORMER RAILROAD SIGNAL (SIGNAL REMOVED) , 28.5 M (93.5 FT) EAST OF THE CENTERLINE OF THE NORTHBOUND LANES OF THE AVENUE, 2.0 M (6.6 FT) SOUTH OF THE NEAR RAIL, AND 0.2 M (0.7 FT) ABOVE THE LEVEL OF THE TRACKS.
12/20/1994 by NGS (GOOD)
RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1994 (AJL) THE STATION IS LOCATED IN ARLINGTON AT THE CROSSING OF COLLINS STREET AND THE MISSOURI PACIFIC RAILROAD, ABOUT 2.8 KM (1.75 MI) SOUTH OF INTERSTATE HIGHWAY 30, EXIT 28. ---OWNERSHIP MISSOURI PACIFIC RAILROAD--- TO REACH FROM THE INTERSECTION OF INTERSTATE HIGHWAY 30 (EXIT 28) AND HIGHWAY 157 (COLLINS STREET) ON THE NORTH SIDE OF ARLINGTON, GO SOUTH ON HIGHWAY 157 AND COLLINS STREET FOR 2.75 KM (1.70 MI) TO A SET OF RAILROAD TRACKS AND THE STATION ON THE LEFT. THE STATION IS A STANDARD DISK SET INTO A DRILL HOLE IN THE NORTHWEST CORNER OF A CONCRETE FOUNDATION OF THE SOUTH LEG OF A SIGNAL TOWER (TOWER HAS BEEN REMOVED). 28.6 M (93.8 FT) EAST OF THE CENTERLINE OF THE NORTHBOUND LANES OF COLLINS STREET, 21.7 M (71.2 FT) EAST OF A RAILROAD CROSSING ARM PEDISTAL, 12.4 M (40.7 FT) SOUTHEAST OF AND ACROSS THE TRACKS FROM THE SOUTHEAST CORNER OF A SMALL CONCRETE BUILDING AND 2.0 M (6.6 FT) SOUTH OF THE NEAR RAIL.
09/21/1996 by USPSQD (GOOD)
RECOVERY NOTE BY US POWER SQUADRON 1996 RECOVERED IN GOOD CONDITION.
02/22/1997 by NGS (GOOD)
RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1997 (RWD) RECOVERED USING 1996 DESCRIPTION. ALL DIRECTIONS AND DISTANCES CHECKED.

Control Text

  • The horizontal coordinates were established by GPS observations and adjusted by the National Geodetic Survey in February 1996.
  • The orthometric height was determined by differential leveling and adjusted by the National Geodetic Survey in June 1991.
  • The X, Y, and Z were computed from the position and the ellipsoidal ht.
  • The Laplace correction was computed from DEFLEC99 derived deflections.
  • The ellipsoidal height was determined by GPS observations and is referenced to NAD 83.
  • 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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