Category:National Historic Civil Engineering Landmarks in Pennsylvania
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Subcategories
This category has the following 22 subcategories, out of 22 total.
A
B
- Bethlehem Waterworks (16 F)
C
D
- Davis Island Lock and Dam (13 F)
- Dunlap's Creek Bridge (23 F)
F
- Frankford Avenue Bridge (19 F)
H
K
M
N
- Northampton Street Bridge (30 F)
P
R
S
- Starrucca Viaduct (48 F)
T
U
- Union Canal Tunnel (12 F)
W
Media in category "National Historic Civil Engineering Landmarks in Pennsylvania"
This category contains only the following file.
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A Map of Philadelphia and Parts Adjacent vc6b.1.jpg 640 × 877; 156 KB