Armstrong Tunnel | |
 The Armstrong Tunnel at Forbes Avenue. Duquesne University's Gumberg Library is visible in the background | |
    | |
| 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 |
| Built | 1926 |
| Architect | Covell, Vernon R.; Et al. |
| NRHP reference No. | 86000015[1] |
| Significant dates | |
| 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.
- ^ "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.