|Location||Baldwin, Allegheny County, Pennsylvania|
|System||Allegheny Valley Railroad|
|Start||Old Clairton Road|
|Constructed||rock bored, brick ring lining|
|Owner||Allegheny Valley Railroad|
|Operator||Allegheny Valley Railroad|
|No. of tracks||Single (formerly Double)|
|Track gauge||1,435 mm (4 ft 8 1⁄2 in) standard gauge|
|Operating speed||15 MPH|
|Tunnel clearance||23 feet|
The Whitehall Tunnel in Allegheny County, Pennsylvania was originally built by the B&O Railroad in 1899 as a double-track tunnel. The tunnel was completed in 1900. It was part of the Baltimore and Ohio Short Line Railroad, and allowed the B&O to bypass its former route into Pittsburgh along the Pittsburgh Southern and Little Saw Mill Run Railroad. One worker, Antonio De Bono, was killed during its construction.
It is currently a single-track tunnel, owned by the Allegheny Valley Railroad. The tunnel is approached from Glenwood in the south, up a steep grade along the Streets Run valley to the northern end of the tunnel. The line continues from the southern end to Bruceton, Pennsylvania.
Dimensions: 28 ft wide (8.5 m) at base; 30 ft wide (9.1 m) at spring line; 23 ft (7.0 m) from top of rail to top of arch rise
Engineer: W. T. Manning; Bennet & Talbot, subcontractor, 1901–02
- "Whitehall Tunnel". Retrieved 2009-02-28.
- "Yards on the Fairmont". The Courier. Connelsville, Pennsylvania. 27 July 1900. p. 1.
- "Baltimore and Ohio's Cutt Off". New York Times. 3 July 1883. Retrieved 19 December 2010.
- "Fatal cave-in in a tunnel" (PDF). New York Times. 25 March 1900. Retrieved 3 March 2009.
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