Pittsburgh, Toledo & Western Railroad

Reporting mark: PT&W
NS - Rexford Tunnel (Harrison County, Ohio)
Tunnel on Norfolk Southern Railway (former Norfolk & Western Railway)
Open to traffic

P&WV - Copeland Tunnel (Harrison County, Ohio)
Bypassed Tunnel on Norfolk Southern Railway (former Norfolk & Western Railway)
Closed to all traffic, bypassed

WLE - Hanna Tunnel (Harrison County, Ohio)
Originally built for the Wabash-Pittsburgh Terminal Ry. expansion into Pittsburgh
Tunnel on Wheeling & Lake Erie RR
Open to traffic