Built under the supervision of Chief Engineer Alexander C Shand, Middle Division Bridge Number 147 was completed in 1906. In a tradition started by PRR Chief Engineer William H Brown, with his bridge in Johstown PA spanning the Conemaugh River, the bridge was built of cut stone because of its low maintenance and increased durability over early steel and iron structures. The bridge spanning the Juniata River on the Southeast Side of Mt Union consists of six segmental stone arch spans each 100' in length and 58' wide. Because the bridge consists of an even number of spans, the Center Pier was expanded by 8' to create a visible center to the bridge, a nod to traditional bridge building techniques in which an odd number of spans was utilized to define the center of the structure. Bridge number 147 brings the former four track main of the PRR into Mt. Union on an elevated fill, avoiding grade crossings through the once bustling interchange town with the East Broad Top Railroad. Today, the bridge serves the Norfolk Southern Corporation's busy two track Pittsburgh Line, though later altered with reinforced concrete casing, the bridge remains another great example of PRR's tradition of Cut Stone masonry bridges that were built to last.
Photographs & History
Part 6: Cambria City and the Western Suburbs: Leaving Johnstown proper, the Mainline of the PRR crosses another site associated with the history of the Great Flood of 1889. A seven span stone arch bridge over the Conemaugh River, officially know as Bridge 222 built under the guidance of Chief Engineer William Brown in 1888, was the sight of tragedy as flood waters washed across the valley, trapping over 500 people and debris, eventually catching fire and killing all but 80 in the blaze. While the structure survived the damage, over 2200 lives collectively were lost in what is still considered America’s worst natural disaster.
Later, in the history of this structure the PRR modernized the bridge reinforcing it in concrete on the South Side and expanding the bridge to accommodate the four track system the PRR was know for. Today, there is more plans for the bridge with the City planning its South Side re-facing to incorporate decorative lighting for night time illumination, tying in the Point Stadium, Inclined Plane, and Festival Park, adding another visual landmark to the Johnstown Discovery Network.
As the Mainline again follows the Conemaugh River westward, it hugs the base of Brownstone Hill in the back lots of Cambria City. Opposite, on the North Side of the river, the C&BL takes a wondering path, servicing the area know as the Lower Works, the original Cambria Iron Works that established Steel Making in area circa 1852. While the mainline is pretty straight forward, the C&BL runs through ruins of its former self. In the neighborhood of Minersville, vacant yard trackage and a quiet engine facility, far to large to be justified for the sometimes monthly operations of today stands testament to a company railroad that once thrived on terminal switching, moving in raw materials to the mill and finished product to the PRR and B&O.
Further West, past the engine house the C&BL once again crosses the Conemaugh one last time on the Ten Acre Bridge to access the Wire and Rod Works in the Morrelleville Section one of the last facilities still doing what it was intended to do by Bethlehem Steel. From the North Side, a spur continues on from the locomotive shops only to be lost in the weeds along Cramer Pike.
On the South Side of the River we make one more significant observation on the PRR main. At MP 277.3 stood SG tower in the Western Suburbs of town. Here interchange was conducted with the C&BL. More significantly on the mainline, tracks 1, 2, and 3 (4 split off remotely 3 miles West) divided along the South Bank, while track 5 and 6 ran along the North to Conpitt Junction some 13 miles further West. Track 5 and 6 known as the Sang Hollow Extension, was built between 1881-83 to handle heavier freight traffic through the area, eventually connecting back with the Mainline and elusive Conemaugh Line, a low grade back road into Pittsburgh, at JD Interlocking just west of New Florence PA.
This concludes our tour of the Greater Johnstown Area, check back soon for more in depth posts on other towns related to the Pennsylvania Railroad. For more imagery from my Mainline Project please visit my website.
For more information on the PRR and the neighboring landscape check out some of the links below. As a side note, I would like to thank the many deicated people that spend so much time and energy preserving, interpreting, and sharing the past, present, and future of our Railroad, Social and Industrial Heritage in this Country! Please feel free to send me more links and I will be sure to add them!