| Name | Location | Status | Design | Year Built | Year Lost | Span Length | Total Length |
|---|
| Allegheny Creek Bridge | TR 618 (Shady Lane) over Allegheny Creek | Open to traffic | Arch | 1908 | -- | 34.1 ft. | 34.1 ft. |
| Allegheny Creek Bridge | TR 806 (River Road) over Allegheny Creek | Open to traffic | Closed-spandrel arch | 1913 | -- | 60.0 ft. | 60.0 ft. |
| Bertsch Creek Bridge | PA 4020 (Maple Drive) over Bertsch Creek | Open to traffic | Stone arch | 1889 | -- | 12.1 ft. | 42.0 ft. |
| Broad Street Bridge | Broad Street over Monocacy Creek | Open to traffic | Closed-spandrel arch | 1909 | -- | 99.1 ft. | 431.1 ft. |
| Bushkill Creek Bridge | PA 1008 over Bushkill Creek | Closed to all traffic | Pratt pony truss | 1935 | -- | 71.9 ft. | 76.1 ft. |
| Bushkill Creek Bridge | PA 2019 (13th Street) over Bushkill Creek | Open to traffic | Stone arch | 1886 | -- | 29.9 ft. | 92.9 ft. |
| Bushkill Creek Bridge | PA 2023 (N. 3rd Street) over Bushkill Creek | Open to traffic | Stone arch | 1894 | -- | 29.9 ft. | 178.2 ft. |
| Delaware River Bridge | Bridge over Delaware River | Open to traffic | Whipple through truss | 1904 | -- | 170.0 ft. | 651.9 ft. |
| Delaware River Bridge | US 22 over Delaware River | Open to traffic | Pennsylvania through truss | 1937 | -- | 549.9 ft. | 549.9 ft. |
| Dr. George S. Smith Bridge | PA 611 (S. 3rd Street) over Lehigh River | Open to traffic | Closed-spandrel arch | 1912 | -- | 100.1 ft. | 299.9 ft. |
| Freys Run Bridge | PA 2003 over Freys Run | Open to traffic | Stone arch | 1857 | -- | 15.1 ft. | 44.9 ft. |
| Freys Run Bridge | PA 2006 over Freys Run | Open to traffic | Stone arch | 1896 | -- | 9.8 ft. | 24.0 ft. |
| Glendon Hill Road Bridge | Glendon Hill Road over Lehigh River | Open to traffic | Pratt through truss | ca. 1935 | -- | 119.1 ft. | 357.0 ft. |
| High Street Bridge | High Street over Conrail | Open to traffic | Timber stringer | ca. 1910 | -- | -- | 67.9 ft. |
| High Street Bridge | High Street over Saucon Creek | Open to traffic | Pratt through truss | 1936 | -- | 130.9 ft. | 134.8 ft. |
| Hokendauqua Creek Bridge | PA 329 (21st Street) over Hokendauqua Creek | Open to traffic | Closed-spandrel arch | 1909 | -- | 63.0 ft. | 126.0 ft. |
| Hokendauqua Creek Bridge | TR 470 over Hokendauqua Creek | Open to traffic | Closed-spandrel arch | 1909 | -- | 47.9 ft. | 51.8 ft. |
| Hokendauqua Creek Bridge | TR 473 over Hokendauqua Creek | Open to traffic | Stone arch | ca. 1875 | -- | -- | 70.9 ft. |
| Hokendauqua Creek Bridge | TR 635 (Spruce Drive) over Hokendauqua Creek | Open to traffic | Closed-spandrel arch | 1913 | -- | 56.1 ft. | 65.0 ft. |
| Hokendauqua Creek Bridge | TR 544 over Hokendauqua Creek | Open to traffic | Stone arch | 1896 | -- | 24.0 ft. | 79.1 ft. |
| Hokendauqua Creek Bridge | TR 586 (Walker Road) over Hokendauqua Creek | Open to traffic | Closed-spandrel arch | 1911 | -- | 47.9 ft. | 50.9 ft. |
| Indian Creek Bridge | SR4003 over Indian Creek | Open to traffic | Stone arch | 1834 | -- | 14.1 ft. | 32.2 ft. |
| Indian Creek Bridge | TR 511 over Indian Creek | Open to traffic | Stone arch | 1826 | -- | 18.0 ft. | 62.0 ft. |
| Jacoby Creek Bridge | PA 611 over Jacoby Creek | Open to traffic | Arch | 1907 | -- | 27.9 ft. | 43.0 ft. |
| Lehigh Canal Bridge | High Street over Lehigh Canal | Open to traffic | Pratt through truss | 1910 | -- | -- | 137.1 ft. |
| Little Bushkill Creek Bridge | TR 623 (Engler Road) over Little Bushkill Creek | Open to traffic | Closed-spandrel arch | 1910 | -- | -- | 51.8 ft. |
| Little Martins Creek Bridge | TR 684 (Little Creek Road) over Little Martins Creek | Open to traffic | Closed-spandrel arch | 1911 | -- | 44.9 ft. | 49.9 ft. |
| Lynn Avenue Bridge | Lynn Avenue over Conrail yard | Open to traffic | Parker through truss | 1928 | -- | 200.1 ft. | 205.1 ft. |
| Martins Creek Bridge | PA 1033 (Pennsylvania Avenue) over Martins Creek | Open to traffic | Closed-spandrel arch | 1915 | -- | 44.9 ft. | 44.9 ft. |
| Martins Creek Bridge | TR 625 over Martins Creek | Open to traffic | Closed-spandrel arch | 1911 | -- | 43.0 ft. | 44.9 ft. |
| Monocacy Creek Bridge | TR 438 over Monocacy Creek | Open to traffic | Pratt pony truss | 1937 | -- | 47.9 ft. | 59.1 ft. |
| Monocacy Creek Bridge | TR 437 over Monocacy Creek | Open to traffic | Stone arch | ca. 1890 | -- | 25.9 ft. | 113.9 ft. |
| Monocacy Creek Bridge | TR 431 over Monocacy Creek | Open to traffic | Stone arch | 1911 | -- | 24.0 ft. | 138.1 ft. |
| Mud Run Creek Bridge | TR 627 over Mud Run Creek | Open to traffic | Closed-spandrel arch | 1911 | -- | 32.2 ft. | 34.1 ft. |
| Oughoughton Creek Bridge | TR 661 over Oughoughton Creek | Open to traffic | Pratt pony truss | 1937 | -- | 44.0 ft. | 45.9 ft. |
| Saucon Creek Bridge | TR 376 over Saucon Creek | Open to traffic | Stone arch | 1858 | -- | 21.0 ft. | 102.0 ft. |
| West Branch Bushkill Creek Bridge | PA 4025 over West Branch Bushkill Creek | Open to traffic | Closed-spandrel arch | 1926 | -- | 40.0 ft. | 41.0 ft. |
| West Monocacy Creek Bridge | Mill Street over West Monocacy Creek | Open to traffic | Pratt pony truss | 1936 | -- | 44.0 ft. | 45.9 ft. |