Philadelphia & Reading Railroad, Skew Arch Bridge, North Sixth Street at Woodward Street, Reading, Berks County, PA

See also HABS PA-1025 for additional documentation. Includes photographs.
See also HAER PA-117 for additional documentation.
Significance: This structure's three spans are extremely rare examples of true skew arches, in which the courses of stone are laid on helicoidal curves. Because the complex geometry is difficult to design and construct, only a few such bridges exist in the U.S. The Skew Arch Bridge was placed on the National Register of Historic Places in 1973.
Survey number: HAER PA-116
Building/structure dates: 1855-1857 Initial Construction
National Register of Historic Places NRIS Number: 73001590