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Details for Benchmark: JB1431

N 38° 35.617 W 089° 59.067 (NAD 83)

Altitude: 576.1

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

Location:
In ST CLAIR county, IL View Original Datasheet
Designation:
ALBERT 2 RM 3
Marker Type:
reference mark disk
Setting:
set into the top of a round concrete monument
Stability:
May hold, but of type commonly subject to surface motion.

Must Read!

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Church demolished. Retail stores and parking lots now located here. See my log of ALBERT 2 (JB1428) for details.

Found this one in good shape and just as described.

This church property and neighboring bank are scheduled to be torn down in the next few months. It will be redeveloped as commercial to go with the mall next door. St. Alberts has already moved into a new building. This church is currently signed as Holy Trinity.

[Photos:]
photoJB1431 - Mark Found in Driveway
photoJB1431 - Mark Found in Driveway
The mark is right next to the bag and GPSr.

a nice drive-by benchmark.My second one today. Don's Sissy

My gentleman friend beat me to this one by mere moments! Nice find in the dark. Tattoolady

Found this one in the dark. That's why they call me "Eagle Eyes"! Nice easy one really. Big Guys Eagle Eyes

driving by--thought I'd get this one. Wet!

[Photos:]
photoGreat Al # 2/3

Found in good condition as described. This was an easy one for a cooler winter day. (A REAL Drive By benchmark!)

[Photos:]
photoJB1431 (Albert 2 RM 3) St. Clair county, IL

Documented History (by the NGS)

01/01/1971 by NGS (MONUMENTED)
DESCRIBED BY NATIONAL GEODETIC SURVEY 1971 AT FAIRVIEW. LOCATED ABOUT 0.1 MILE NORTH OF THE JUNCTION OF STATE HIGHWAY 159 AND U.S. HIGHWAY 40 AT FAIRVIEW, SET IN A DRILL HOLE IN THE CONCRETE APRON OF DRIVEWAY TO THE ST. ALBERT THE GREAT CATHOLIC CHURCH PARSONAGE GARAGE, 1 FOOT NORTH OF THE NORTH EDGE OF SIDEWALK, 1 FOOT EAST OF THE WEST EDGE OF THE APRON, 19 FEET SOUTHWEST OF THE NORTHWEST CORNER OF THE GARAGE AND 8 FEET WEST OF THE WEST WALL OF SAME.

Control Text

  • The horizontal coordinates were scaled from a topographic map and have an estimated accuracy of +/- 6 seconds.
  • The NAVD 88 height was computed by applying the VERTCON shift value to the NGVD 29 height (displayed under SUPERSEDED SURVEY CONTROL.) The vertical order pertains to the superseded datum.
  • The geoid height was determined by GEOID99.

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