854 5530 TIDAL 29 (JU0727)
State: PA
County: Philadelphia
Quad: Philadelphia
Location: N 39° 57.183' W75° 09.783'
Elevation: 45.56 ft.
Designation: 854 5530 TIDAL 29 1922
Setting: Granite slab
Type: Tidal Benchmark
Year: 1922
Established By: NGS
Attempted: 18 January 2003, 12 June 2009 (full recovery)
Status: Not found
This one may still be in place, but there was no way we could get near it with all the scaffolding that's been erected around City Hall. I was really looking forward to this one, too! We just weren't having too much luck with the benchmarks today. We will have to try again!
NGS Official Description, 1963 (see datasheet for recent updates) :
DESCRIBED BY COAST AND GEODETIC SURVEY 1963 AT PHILADELPHIA. AT PHILADELPHIA, PHILADELPHIA COUNTY, AT THE CITY HALL, AT THE NORTH BROAD STREET ENTRANCE, UNDER THE NORTH ARCHWAY, NEAR THE NORTHEAST CORNER OF A LARGE GRANITE SLAB, AND ABOUT 2 FEET LOWER THAN THE FOUNDATION STONE. A STANDARD DISK, STAMPED ELEV 46.775 FT 29 1922.
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...The north archway ... |
...It might be in there somewhere. |
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