Photographs & History

Photographs and History

Crossing Mine Ridge

Looking west into Eby's curve the railroad traverses a fill across the timeless Amish farmland as it enters the Pequea Valley. The curve used to host four main tracks like much of the main line but much of the heavy tonnage would be diverted away from this segment after the  Atglen & Susquehanna branch opened in 1906. 

Looking west into Eby's curve the railroad traverses a fill across the timeless Amish farmland as it enters the Pequea Valley. The curve used to host four main tracks like much of the main line but much of the heavy tonnage would be diverted away from this segment after the  Atglen & Susquehanna branch opened in 1906. 

With Mine Ridge in the distance a fill carries the main line towards the summit from the west as it crosses between the Pequea and Chester Valleys. This area defined the ruling grade on the main line of the Philadelphia Division and continues to be the most challenging part of Amtrak's Keystone line. 

With Mine Ridge in the distance a fill carries the main line towards the summit from the west as it crosses between the Pequea and Chester Valleys. This area defined the ruling grade on the main line of the Philadelphia Division and continues to be the most challenging part of Amtrak's Keystone line. 

Passing through the pastoral Lancaster County landscape the eastbound ascent of Mine Ridge takes the PRR mainline around a series of reverse curves that carry the railroad over the 560’ summit dividing the Pequea and Chester Valleys. Gap, a quaint community whose history dates back to when William Penn visited the area late in the 1600’s is located at the crossroads of the Philadelphia & Lancaster Turnpike and the Newport Turnpike. The small village of roughly 1900 residents is divided by the first pair of significant curves on the main line including the 4° Eby’s curve and the 4° Gap curve. To attain the summit the railroad climbs a .56% ruling grade and enters a cut on the Gap curve through Mine Ridge, limiting trains to a maximum of 50mph. Through William H. Brown's improvement years there were several attempts to reduce curvature of the route, but an ambitious project was proposed to eliminate the curves all together in the first quarter of the 20th century. With an estimated cost of $2.7 million, the realignment would require the removal of a large piece of Mine Ridge to eliminate a total of four curves with one large gentle arc, increasing speeds from 50 to 90 mph and reducing average travel time by 1.5 minutes. Alas the realignment was deemed too costly for the time and was never revisited, leaving the same basic arrangement that survives today now part of Amtrak's Keystone Line.