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Details for Benchmark: AB6918

N 42° 09.250 W 080° 04.517 (NAD 83)

Altitude: 578.21

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

Location:
In ERIE county, PA View Original Datasheet
Designation:
906 3038 G
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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Saw while caching

Nice easy find

Out visiting the lighthouse today - stopped to check on a few benchmarks along the way. Recovered in good condition.

[Photos:]
photoAB6918 - Location
photoAB6918 - 906 3038G Marker & GPS
photoAB6918 - 906 3038G Marker

Recovered in good condition..

N 42° 09.238 W 080° 04.543

[Photos:]
photo906 3038 G (AB6918) area - looking SSE
photo906 3038 G (AB6918) area - looking NW
photo906 3038 G (AB6918) disk - Presque Isle, PA

Found this after the Tall Ships Parade into the bay. Was finding other benchmarks and 'happened' across this one.

Found while exploring PI for some caches...

[Photos:]
photothe station
photomark up close

Found after finding a nearby geocache.
mmcgr & Minnie

Found this on a benchmarking trip with my wife.

[Photos:]
photoLooking at the benchmark from a few feet away.
Looking at the benchmark from a few feet away.
photoClose up of AB6918
Close up of AB6918

Benchmarking trip to Erie today with Falamazar. Had a great time despite the heat.

[Photos:]
photoAB6918-2
AB6918-2
photoAB6918-1
AB6918-1

First benchmark of the day for me on Presque'Isle. This is a nice park.

Found today while caching at Presque Isle.

[Photos:]
photoClose Up

found it

intact

[Photos:]
photowith hands

We found it in good condition.

Found this one with Goonie Nanny and Erie Scouter after the CITO event.

[Photos:]
photoAB6918

Took a quick walk on the north pier. Benchmark found in good condition.

Found it! i wasn't out to find benchmarks today.. i just stumbled on this on accident and recognized what it was.. so i set out to search the rest of the area for benchmarks :-)

[Photos:]
photo0817081307

Disc present and in good shape.

  • Rev Mike
[Photos:]
photoNOS 3038 G 1985

The mark is in good condition at N 42° 09.237 W 080° 04.549.

[Photos:]
photoAB6918 - Looking W from mark
photoAB6918 - Looking E from mark
photoAB6918 - Looking N from mark
photoAB6918(906 3038 G) - Presque Isle, Erie PA

Found in good condition and as described.

[This entry was edited by Kordite on Monday, April 23, 2007 at 11:53:04 AM.]

[Photos:]
photoAB6918, Presque Isle, Erie, PA
photoAB6918 in context, Presque Isle, Erie, PA

Was out Geocacheing on PI and came across this one by accident.

[Photos:]
photo3038G.JPG

Found it.

Mr & Mrs Bean

Found on a benchmark hunting trip around Presque Isle.

[Photos:]
photoBenchmark position...
photoBenchmark...
N 42° 09.250 W 080° 04.520

Easy to find. My GPS read coordinates:
42º9.25'& 80º4.52' - right on.

[Photos:]
photoGauge House
Benchmark Disk in concrete base of Gauge House on North Pier of channel entrance.

11/29/02

Found it. Location is as described. Disk is in good condition.

Documented History (by the NGS)

01/01/1985 by NOS (MONUMENTED)
07/12/1994 by NOS (GOOD)
DESCRIBED BY NATIONAL OCEAN SERVICE 1994 (KLD) IN ERIE, ON THE NORTHERLY SIDE OF THE HARBOR ENTRANCE CHANNEL AT THE US COAST GUARD STATION, 1.93 FEET (0.59 M) SOUTHEAST OF THE SOUTHEAST CORNER OF THE NOS GAUGE HOUSE, 0.75 FEET (22.86 CM) NORTHWEST OF THE SOUTHEAST CORNER OF CONCRETE FOUNDATION OF GAUGE HOUSE, 1.4 FEET (0.4 M) ABOVE THE PIER, BEING A STANDARD NOS DISC STAMPED 3038 G 1985.

Control Text

  • The horizontal coordinates were scaled from a topographic map and have an estimated accuracy of +/- 6 seconds.
  • The orthometric height was determined by differential leveling and adjusted by the National Geodetic Survey in January 1997.
  • This Tidal Bench Mark is designated as VM 12808 by the Center for Operational Oceanographic Products and Services.
  • 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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