Rating:
5 votes

Armstrong Tunnel

Photo 

East Portal

Oblique view from Forbes Avenue.

Photo taken by Rick Mattioni in July 2012

Enlarge

BH Photo #234685

Map 

Street View 

Facts 

Overview
Tunnel on S. Tenth Street between Forbes Avenue and 2nd Avenue
Location
Pittsburgh, Allegheny County, Pennsylvania
Status
Open to traffic
History
Built 1927; rehabilitated 1991
Builders
- Booth & Flinn Co. of Pittsburgh, Pennsylvania
- Vernon R. Covell
Design
Tunnel
Dimensions
Total length: 1,298.0 ft.
Deck width: 19.4 ft.
Vertical clearance above deck: 15.0 ft.
Recognition
Posted to the National Register of Historic Places on January 7, 1986
Approximate latitude, longitude
+40.43791, -79.99197   (decimal degrees)
40°26'16" N, 79°59'31" W   (degrees°minutes'seconds")
Approximate UTM coordinates
17/585493/4476850 (zone/easting/northing)
Quadrangle map:
Pittsburgh East
Inventory numbers
PA 02 7301 3006 2021 (Pennsylvania Bridge Management System number)
NRHP 86000015 (National Register of Historic Places reference number)
BH 41384 (Bridgehunter.com ID)
Inspection (as of 02/1991)
Deck condition rating: Excellent (9 out of 9)
Superstructure condition rating: Very Good (8 out of 9)
Substructure condition rating: Very Good (8 out of 9)
Appraisal: Not deficient
Sufficiency rating: 76.2 (out of 100)
Average daily traffic (as of 1991)
9,230

Update Log 

  • July 7, 2012: New photo from Rick Mattioni

Sources