Map 

Vicinity Map

Vicinity map

Map links:

Facts 

Overview
Through truss bridge over Youghiogheny River on Walnut Street
Location
Allegheny County, Pennsylvania
Status
Open to traffic
History
Built 1931; rehabilitated 1989
Design
Warren through truss
Dimensions
Length of largest span: 420.0 ft.
Total length: 1,182.1 ft.
Deck width: 29.5 ft.
Vertical clearance above deck: 21.7 ft.
Recognition
Eligible for the National Register of Historic Places
Approximate latitude, longitude
+40.30833, -79.82500   (decimal degrees)
40°18'30" N, 79°49'30" W   (degrees°minutes'seconds")
Approximate UTM coordinates
17/599846/4462642 (zone/easting/northing)
USGS topographic map
McKeesport
Inventory numbers
PA 02 0048 0130 0203 (Pennsylvania bridge number)
BH 30220 (Bridgehunter.com ID)
Inspection (as of 12/2007)
Deck condition rating: Poor (4 out of 9)
Superstructure condition rating: Poor (4 out of 9)
Substructure condition rating: Fair (5 out of 9)
Appraisal: Structurally deficient
Sufficiency rating: 31.3 (out of 100)
Average daily traffic (as of 2008)
20,059

Comments 

Boston Bridge
Posted July 17, 2008, by kayandjay.net (kayandjay [dot] net)

Is this really a Warren Truss?

Uploaded file: JPEG image data, EXIF standard 2.2, 198482 bytes