Armstrong Tunnel (Pittsburgh, Pennsylvania)
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Goes under the Bluff and Duquesne University, and connects Second Avenue at the South Tenth Street Bridge to Forbes Avenue.
Nearby cities:
Coordinates: 40°26'10"N 79°59'27"W
- Liberty Tunnels 1.8 km
- Tunnel No. 2 5.4 km
- Laurel Hill Tunnel (Repurposed) 74 km
- Allegheny Mountain Tunnel 109 km
- Sand Patch Tunnel 111 km
- Black Hand Gorge 197 km
- C&O Big Bend Tunnel 318 km
- Elkhorn Tunnel 363 km
- Cincinnati Subway (Abandoned) 414 km
- Cumberland Gap Tunnel 534 km
- Bluff Neighborhood 0.6 km
- Golden Triangle 0.8 km
- Lower Hill Neighborhood 1 km
- Mt. Washington Neighborhood 1.9 km
- South Shore Neighborhood 1.9 km
- North Shore 1.9 km
- Hill District 2 km
- Southside Flats Neighborhood 2 km
- Middle Hill Neighborhood 2 km
- Strip District Neighborhood 2.2 km