Details for Benchmark: MG0655
N 41° 30.583 W 090° 31.000 (NAD 83)
Coordinates may not be exact. Altitude is RESET and location is SCALED. (more info)
- In ROCK ISLAND county, IL View Original Datasheet
- Y 52 RESET
- Marker Type:
- bench mark disk
- retaining walls, concrete ledge, etc.
- May hold, but of type commonly subject to surface motion.
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Documented History (by the NGS)
|01/01/1978 by LOCENG (MONUMENTED)
|DESCRIBED BY LOCAL ENGINEER (INDIVIDUAL OR FIRM) 1978
IN MOLINE. IN MOLINE, IN TOP OF BARRIER WALL OF RAMP A, 130 FEET NORTH OF CENTER-LINE OF 3RD AVENUE, AND 45 FEET WEST OF CENTERLINE OF THE 15TH STREET EXTENDED FROM THE SOUTH.
|08/16/1996 by USPSQD (MARK NOT FOUND)
|RECOVERY NOTE BY US POWER SQUADRON 1996
MARK NOT FOUND.
|06/02/1997 by USPSQD (GOOD)
|RECOVERY NOTE BY US POWER SQUADRON 1997
RECOVERED IN GOOD CONDITION.
- The horizontal coordinates were scaled from a topographic map and have an estimated accuracy of +/- 6 seconds.
- The orthometric height was computed from unverified reset data. No vertical observational check was made to the station.
- The geoid height was determined by GEOID99.