| Place | Type | AsNotedIn | Locale | |
|---|---|---|---|---|
| Place | Type | AsNotedIn | Locale | |
| B and O Railroad Potomac River Crossing |
|
Harpers Ferry, WV | ||
| B and O Railroad Potomac River Crossing |
|
Maryland Heights, HAFE | ||
| Bollman Suspension and Trussed Bridge |
|
Savage |
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