Rating:
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Tilghman Street Viaduct

Photos 

File:1928 - Tilghman Street Bridge Under Construction.jpg

Hellerich, Mahlon H, and Pennsylvania) Lehigh County Historical Society Allentown. Allentown, 17621987 : a 225-year history. Allentown, Pennsylvania: Lehigh County Historical Society, 1987

View this photo at commons.m.wikimedia.org

BH Photo #318192

Map 

Facts 

Overview
Open-spandrel arch bridge over Lehigh River on Tilghman Street (PA 1002/Old US 22) in Allentown
Location
Allentown, Lehigh County, Pennsylvania
Status
Open to traffic
Future prospects
Slated for rehabilitation in 2016.
History
Built 1929; rehabilitated 1995
Design
Open-spandrel arch
Dimensions
Length of largest span: 185.0 ft.
Total length: 1,387.2 ft.
Deck width: 36.1 ft.
Recognition
Eligible for the National Register of Historic Places
Approximate latitude, longitude
+40.61667, -75.45667   (decimal degrees)
40°37'00" N, 75°27'24" W   (degrees°minutes'seconds")
Approximate UTM coordinates
18/461371/4496305 (zone/easting/northing)
Quadrangle map:
Allentown East
Inventory numbers
PA 39 1002 0250 0000 (Pennsylvania Bridge Management System number)
PANBI 23217 (Pennsylvania BRKEY bridge number on the 2011 NBI)
BH 31210 (Bridgehunter.com ID)
Inspection (as of 11/2008)
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: 56.5 (out of 100)
Average daily traffic (as of 2010)
22,737

Update Log 

  • April 13, 2016: New photo from Luke
  • March 15, 2015: Photo imported by Dave King
  • May 8, 2014: Updated by Nathan Holth: Added rehab plans

Sources 

Comments 

Tilghman Street Viaduct
Posted February 18, 2017, by Luke
Tilghman Street Viaduct
Posted February 18, 2017, by george oakley (georgeoakley49 [at] yahoo [dot] com)

I don't know if anyone noticed but there is a 4 span truss between the American Parkway and the Lehigh Valley Thruway north of this bridge.Don't know if this is on Bridgehunters.

Tilghman Street Viaduct
Posted February 16, 2017, by Tom Woloszanski (TomWoz1744 [at] gmail [dot] com)

We are currently doing the underground electrical work under and around the Tilghman St. bridge. A conversation arose today about what the bridge might weigh. Any insight on this matter would be appreciated. Thank you