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Sister Bridge II: Andy Warhol Bridge

Allegheny County, Pennsylvania
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Seventh St. Bridge

Middle of the Three Sisters Bridges

Photo taken by Brian McKee in January 2009

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Map 

Street Views 

View Uglybridges.com report

Facts 

Overview
Suspension bridge over Allegheny River on Seventh Street in Pittsburgh
Location
Pittsburgh, Allegheny County, Pennsylvania
Status
Open to traffic
History
Built 1926; rehabilitated 1977
Builders
- American Bridge Co. of New York (Superstructure)
- New York Foundation Co. of New York (Substructure)
Design
Self-anchored eyebar suspension
Dimensions
Length of largest span: 442.0 ft.
Total length: 1,061.1 ft.
Deck width: 37.4 ft.
Vertical clearance above deck: 16.2 ft.
Recognition
Posted to the National Register of Historic Places on January 7, 1986
Also called
Seventh Street Bridge
Approximate latitude, longitude
+40.44667, -80.00167   (decimal degrees)
40°26'48" N, 80°00'06" W   (degrees°minutes'seconds")
Approximate UTM coordinates
17/584660/4477813 (zone/easting/northing)
USGS topographic map
Pittsburgh West
Inventory numbers
PA 02 7301 0000 2013 (Pennsylvania Bridge Management System number)
NRHP 86000018 (National Register of Historic Places reference number)
PANBI 02382 (Pennsylvania BRKEY bridge number on the 2011 NBI)
BH 30305 (Bridgehunter.com ID)
Inspection (as of 05/2009)
Deck condition rating: Fair (5 out of 9)
Superstructure condition rating: Fair (5 out of 9)
Substructure condition rating: Satisfactory (6 out of 9)
Appraisal: Functionally obsolete
Sufficiency rating: 47.4 (out of 100)
Average daily traffic (as of 2005)
12,990

Categories 

Allegheny County, Pennsylvania (192)
Allegheny River (38)
American Bridge Co. (464)
Built 1926 (472)
Built during 1920s (7,047)
Eyebar suspension (9)
Functionally obsolete (7,054)
HAER documented (784)
Have street view (10,036)
Historic Bridge Weekend 2009 (19)
 NR-listed (2,355)
Navigable waterway (1,453)
New York Foundation Co. (6)
Open (28,457)
Pennsylvania (3,046)
Pittsburgh, Pennsylvania (57)
Span length 250-500 feet (867)
Suspension (277)
Total length 1000-2500 feet (1,223)

Update Log 

  • March 24, 2012: HAER photos posted by Jason Smith
  • November 15, 2010: New photos from Jason Smith
  • November 14, 2010: Updated by Jason Smith: Changed the name of the bridge
  • January 6, 2009: Updated by Ian Anderson
  • January 4, 2009: New photos from Brian McKee

Sources 

  • Brian McKee - bjmckee51 [at] yahoo [dot] com
  • Ian Anderson - macsignals [at] gmail [dot] com
  • Jason Smith - JDSmith77 [at] gmx [dot] net
  • HAER PA-490-B - Three Sisters Bridges, Seventh Street Bridge, Spanning Allegheny River at Seventh Street, Pittsburgh, Allegheny County, PA
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Comments 

Seventh Street Bridge
Posted September 30, 2008, by Ian Anderson (macsignals [at] gmail [dot] com)

These 3 bridges are also all self-anchored spans.

Seventh Street Bridge
Posted November 29, 2007, by Jay Nicks (jnicks11 [at] juno [dot] com)

This is an eye bar Suspension Bridge.

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