Rating:
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Ganoga Bridge

Photos 

Ganoga Bridge

www.yorkblog.com York Town Square

BH Photo #184079

Map 

Description 

FROM THE 1996-2001 PENNSYLVANIA HISTORIC BRIDGE SURVEY: 'The 5 span, 419'-long reinforced concrete closed spandrel 4-ribbed arch bridge built in 1926 has standard concrete balustrades and it is supported on horizontally scored concrete piers and abutments. The bridge is accented with plain pilasters at each pier which extend upward to form balustrade posts topped by concrete light standards. Reinforced concrete arch bridges began appearing in numbers in Pennsylvania during the first decade of the 20th century, and by the early 1910s they were ubiquitous. The use of ribs is a savings of material but it requires extra formwork. An early example of a closed spandrel ribbed arch bridge is the 1907-1909 Mulberry St. viaduct in Harrisburg (22301200800233). By 1926, the construction of a ribbed closed spandrel arch bridge was not historically or technologically significant. The bridge is not distinguished by its setting or context.

Facts 

Overview
Concrete tee beam bridge over Big Conewago Creek on Pa 295; Sr 0295
Location
York County, Pennsylvania
Status
Demolished and replaced.
History
Built 1926
Builders
- A.P. Dise
- G.A. & F.M. Wagman of York, Pennsylvania
Design
Ribbed closed spandrel arch.
Dimensions
Length of largest span: 74.2 ft.
Total length: 419.0 ft.
Deck width: 24.0 ft.
Also called
Big Conewago Creek Bridge
Approximate latitude, longitude
+40.09917, -76.76333   (decimal degrees)
40°05'57" N, 76°45'48" W   (degrees°minutes'seconds")
Approximate UTM coordinates
18/349696/4440253 (zone/easting/northing)
Quadrangle map:
Dover
Average daily traffic (as of 2008)
795
Inventory numbers
PA 66 0295 0060 1866 (Pennsylvania Bridge Management System number)
BH 46733 (Bridgehunter.com ID)
Inspection report (as of October 2009)
Overall condition: Poor
Superstructure condition rating: Poor (4 out of 9)
Substructure condition rating: Poor (4 out of 9)
Deck condition rating: Poor (4 out of 9)
Sufficiency rating: 48.6 (out of 100)
View more at BridgeReports.com

Update Log 

  • December 26, 2011: Updated by Jodi Christman: Added builder and description
  • December 31, 2010: New photos from Jodi Christman
  • November 9, 2010: New photo from Jodi Christman
  • October 31, 2010: Updated by Nathan Holth: This bridge has been demolished and replaced.
  • October 30, 2010: Added by Jodi Christman

Sources 

Comments 

Ganoga Bridge
Posted December 31, 2010, by Nathan Holth (form3 [at] historicbridges [dot] org)

Yeah, and get this: Pennsylvania's Historic Bridge Inventory found this bridge NOT ELIGIBLE. More details and complaining here: http://www.historicbridges.org/bridges/browser/index.php?bri...

Like ribbed concrete arch bridges are a dime a dozen. What a pile.

Ganoga Bridge
Posted December 31, 2010, by Anthony Dillon (spansaver [at] hotmail [dot] com)

Well.......it just wouldn't be right to end 2010 without hearing about one more of PennDOT's exploits. This appears to have been a rather nice example of a ribbed spandrel arch built on an incline. And a historical marker there as well... but I expect that just makes it a better target!

And it's only fitting that I give out one more of my PENNSY Awards before we close the book on this year.....and that it goes to the firm in who's dishonor it's so proudly named....