Armstrong Tunnel

Significant dates

Armstrong Tunnel
U.S. National Register of Historic Places
Pittsburgh Landmark – PHLF

The Armstrong Tunnel at Forbes Avenue. Duquesne University's Gumberg Library is visible in the background
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Location	Between Forbes and Second Aves. at S. Tenth St., Pittsburgh, Pennsylvania.
Coordinates	40°26′10″N 79°59′28″W / 40.43620°N 79.99118°W / 40.43620; -79.99118
Built	1926
Architect	Covell, Vernon R.; Et al.
NRHP reference No.	86000015^[1]
Added to NRHP	January 7, 1986
Designated PHLF	2003^[2]

The Armstrong Tunnel in Pittsburgh, Pennsylvania, connects Second Avenue at the South Tenth Street Bridge, under the Bluff where Duquesne University is located, to Forbes Avenue between Boyd Street and Chatham Square.

Construction

The tunnel was constructed between 1926 and 1927. The chief engineer was Vernon R. Covell of the Allegheny County Public Works Department. The tunnel portals were designed by a city architect, Stanley L. Roush, who is also noted for the Smithfield Street Bridge portals, the Pittsburgh City-County Building, the Corliss Tunnel, and many other municipal projects.^{[citation needed]}

Characteristics

The tunnel itself is characterized by twin bores of horseshoe cross-section, and bends halfway through. It also has a pedestrian walkway on the western side.^{[citation needed]}

A legend mentioned by the site involves a notion that the bend in the tunnel was a mistake, and whoever was responsible committed suicide in shame. Chief engineer Covell did not kill himself, invalidating this legend. Author Bruce S. Cridlebaugh suspects the bend was related to mines or other geological factors, property rights (including Duquesne University), or alignments with existing or proposed roads.^{[citation needed]}

Since August 1987 the tunnels have provided cellular phone reception.^[3]

Name

The tunnels were named in honor of Joseph G. Armstrong, County Director of Public Works. Most of the bridges over the Pittsburgh's three rivers were replaced between 1910 and 1940, years which included Mr. Armstrong's terms as Mayor of Pittsburgh and Allegheny County Commissioner.^{[citation needed]}

References

^ "National Register Information System". National Register of Historic Places. National Park Service. March 13, 2009.
^ Historic Landmark Plaques 1968-2009 (PDF). Pittsburgh, PA: Pittsburgh History & Landmarks Foundation. 2010. Archived (PDF) from the original on 21 July 2011. Retrieved 2011-07-30.
^ "Pittsburgh Post-Gazette - Google News Archive Search". google.com. Retrieved 19 March 2017.

External links

Media related to Armstrong Tunnel at Wikimedia Commons

v t e Tunnels and bridges in Pittsburgh
Tunnels	Armstrong Tunnel Cork Run Tunnel Corliss Tunnel Fort Pitt Tunnel J&L Tunnel Liberty Tunnel Mount Washington Transit Tunnel North Shore Connector tunnel Pittsburgh and Castle Shannon Tunnel Pittsburgh & Steubenville Extension Railroad Tunnel Schenley Tunnel Squirrel Hill Tunnel Wabash Tunnel
Bridges	30th Street Bridge 31st Street Bridge 33rd Street Railroad Bridge 40th Street Bridge Bloomfield Bridge Birmingham Bridge Charles Anderson Memorial Bridge David McCullough Bridge Fort Duquesne Bridge Fort Pitt Bridge Fort Wayne Railroad Bridge Glenwood Bridge Glenwood B&O Railroad Bridge Greenfield Bridge Highland Park Bridge Homestead Grays Bridge Hot Metal Bridge Liberty Bridge McKees Rocks Bridge Panhandle Bridge Panther Hollow Bridge Schenley Bridge Senator Robert D. Fleming Bridge Smithfield Street Bridge South Tenth Street Bridge Swindell Bridge Three Sisters Roberto Clemente Bridge Andy Warhol Bridge Rachel Carson Bridge Veterans Bridge West End Bridge

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