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  2. Saltsburg Historic District - Wikipedia

    en.wikipedia.org/wiki/Saltsburg_Historic_District

    This district encompasses 118 contributing buildings, one contributing site, one contributing structure, and fifteen contributing objects that are located in the central business district and surrounding residential areas of Saltsburg, including notable examples of buildings that were designed in the Federal and Late Victorian styles.

  3. Pithole, Pennsylvania - Wikipedia

    en.wikipedia.org/wiki/Pithole,_Pennsylvania

    Such "pit-holes" are found in the area where Pithole Creek empties into the Allegheny River, with some measuring 14 inches (36 cm) wide and 8 feet (2 m) long. Another possible explanation involves the discovery of ancient pits dug by early settlers, some 8 feet (2 m) wide and 12 feet (4 m) deep, that were cribbed with oil-soaked timbers. [ 7 ]

  4. List of archaeological sites on the National Register of ...

    en.wikipedia.org/wiki/List_of_archaeological...

    This is a list of archaeological sites on the National Register of Historic Places in Indiana. Historic sites in the United States qualify to be listed on the National Register of Historic Places by passing one or more of four different criteria; Criterion D permits the inclusion of proven and potential archaeological sites . [ 1 ]

  5. Manhole cover - Wikipedia

    en.wikipedia.org/wiki/Manhole_cover

    The base and cover are sometimes called "castings", because they are usually made by a casting process, typically sand-casting techniques. [1] Pick holes in manhole cover, Palo Alto, California, USA Manhole valve made in 2022. The covers usually feature "pick holes", into which a hook handle tool is inserted to lift them.

  6. List of pipeline accidents in the United States (1900–1949)

    en.wikipedia.org/wiki/List_of_pipeline_accidents...

    September 7 – A crude oil pipeline ruptured in Linden, New Jersey, coating roads in the area in oil. [67] October 18 – Vapors from a leaking butane pipeline at a refinery in Texas City, Texas spread out along a nearby highway, causing a number of cars to stall. The gas then exploded, killing 4 people, and seriously burning 17 others.

  7. National Register of Historic Places listings in Madison ...

    en.wikipedia.org/wiki/National_Register_of...

    Location of Madison County in Indiana. This is a list of the National Register of Historic Places listings in Madison County, Indiana. This is intended to be a complete list of the properties and districts on the National Register of Historic Places in Madison County, Indiana, United States. Latitude and longitude coordinates are provided for ...

  8. List of pipeline accidents in the United States in the 2010s

    en.wikipedia.org/wiki/List_of_pipeline_accidents...

    The pipeline exploded with enough force to raise geysers of water in the river and also threw cement chunks onto the tugboat‘s deck. The pipeline is owned by Houston-based Spectra Energy. [325] Analysis concluded that high water flow in the river eroded the cover over the pipeline and scoured away the soil support under the pipeline.

  9. Pipe Creek Sinkhole - Wikipedia

    en.wikipedia.org/wiki/Pipe_Creek_Sinkhole

    The Pipe Creek Sinkhole preserves an ancient wetland.It was created by the collapse of a limestone cave in a Silurian reef formation. That left a steep-sided depression about 75 meters (246 ft) long, 50 meters (164 ft) wide and 11 meters (36 ft) deep.