View this photo at upload.wikimedia.org
BH Photo #267681
The Staple Bend Tunnel, one of the least known, yet most important American railroad sites, was constructed between 1828 and 1834. It is proclaimed to be the first railroad tunnel in the United States and is located between Inclined Plane Nos. 1 and 2 of the Allegheny Portage Railroad on the so-called "Long Level". Measuring 901' in length, the tunnel was built by lining the first 150' at each end with cut stone. The 600' in the middle was cut through solid rock. Each opening was surrounded by a classical facade consisting of four Tuscan pilasters supporting a full entablature of ashlar sandstone. Unfortunately, only the southern portal remains intact. The cost of construction for the tunnel amounted to $37,498. When the Portage Railroad fell into decline after the completion of the Pennsylvania Railroad, the tunnel was abandoned. It is currently owned by the Bethlehem Steel Corporation and is sealed at both ends with concrete-block infill and steel plates. (http://lcweb2.loc.gov/master/pnp/habshaer/pa/pa0200/pa0223/data/pa0223data.pdf)
In 1994 the National Park Service took control and in 2000-2001 the tunnel was carefully restored by Graciano Corporation. (http://www.graciano.com/project_detail.asp?pID=23)
It is now open to pedestrians and bicyclists.
Thanks,Daniel.Alot of help was given identifying the bridges I asked about.
George, https://bridgehunter.com/pa/cambria/bh83902/ I believe that's the truss you speak of and https://bridgehunter.com/pa/cambria/bh83903/ is the deck truss.
I haven't found a great way to search by location here. There is a way, though: go to "add bridge", go to the location, click "go", and on the right a list of what's there will show up: county, state, road, river, railroad, and bridges (both in the BH and NBI databases).
I wish there was a search by location option in the general search menu, but if there is I haven't been able to find it.
While looking at satellite view of the tunnel I noticed A truss and I think a deck truss bridge crossing railroad tracks and the Conemaugh river west of the tunnel opening.They both are railroad bridges and I don't think they're on Bridgehunters.
I just read today in my local paper the Reading Eagle that this tunnel was completed on this date in 1834.Don't know if this is true but I'm putting this information on here.