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Wednesday, August 23, 2017
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Wabash Tunnel & HOV

The Port Authority-owned Wabash Tunnel provides a shortcut for motorists from Route 51 to the South Side and Downtown Pittsburgh. The centuries-old former railroad tunnel was opened as a commuter tunnel in December 2004. Port Authority buses/T do not use the Wabash Tunnel.
The Federal Transit Administration has permitted Port Authority to permanently lift the HOV+1 waiver, meaning all vehicles, regardless of how many occupants, may use the tunnel.
Please refer to the chart below for hours of operation and direction:





Monday-Friday 6 a.m.-2 p.m.



Monday-Friday 2 p.m.-3 p.m.



Monday-Friday 3 p.m.-11 p.m.



Monday-Friday 11 p.m.-6 a.m. 



Saturday & Sunday 6 a.m.-11 p.m. 


Closed  Saturday & Sunday 11 p.m.-6 a.m.  


*One-hour closure so that traffic direction can be changed.

Additional Operating Restrictions

  • Speed limit in the Wabash Tunnel is 25 miles per hour and 15 miles per hour around curves
  • No vehicle over 13’1” is permitted in the tunnel
  • No tractor-trailers or similar commercial trucks are permitted in the tunnel
  • No flammable liquids or explosives are permitted in the tunnel

Parking Information

Adjacent to the Wabash Tunnel on West Carson Street is a 160-space paid parking lot that includes six ADA-accessible spaces. The lot is operated by PPG Public Parking, a private company, and is located close to the T, Mon Incline and many bus routes.

For more information on the Wabash lot, including parking rates, visit PPG Public Parking's website.

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