3 votes

Social Island


Facing east (north side)

Photo taken by Jodi Christman


BH Photo #176962


FROM THE 1996-2001 PENNSYLVANIA HISTORIC BRIDGE SURVEY: The 2-span, humpbacked limestone arch bridge (ca. 1850) with stone parapets is listed in the National Register. The northwest wingwall collapsed ca. 1990 and has been repaired and repointed with the addition of concrete coping. Otherwise, there has been no change in the bridge's status since the previous survey. Shotcrete was applied to the arch intrados prior to 1986.


Stone arch bridge over Conococheague Creek on PA 3012
Franklin County, Pennsylvania
Open to traffic
Built ca. 1850
Stone arch
Length of largest span: 35.1 ft.
Total length: 76.1 ft.
Deck width: 14.1 ft.
Posted to the National Register of Historic Places on June 22, 1988
Also called
Conococheague Creek Bridge
Approximate latitude, longitude
+39.88500, -77.71278   (decimal degrees)
39°53'06" N, 77°42'46" W   (degrees°minutes'seconds")
Approximate UTM coordinates
18/268034/4418516 (zone/easting/northing)
Quadrangle map:
Average daily traffic (as of 2018)
Inventory numbers
PA 28 3012 0110 0616 (Pennsylvania Bridge Management System number)
NRHP 88000776 (National Register of Historic Places reference number)
PANBI 17554 (Pennsylvania BRKEY bridge number on the 2011 NBI)
BH 30942 (Bridgehunter.com ID)
Inspection report (as of April 2018)
Overall condition: Fair
Superstructure condition rating: Fair (5 out of 9)
Substructure condition rating: Fair (5 out of 9)
Sufficiency rating: 20.4 (out of 100)
View more at BridgeReports.com

Update Log 

  • December 31, 2018: New photos from Jodi Christman
  • December 26, 2011: Updated by Jodi Christman: Added description note
  • January 2, 2011: Updated by Jodi Christman: Corrected name
  • September 11, 2010: New photos from Jodi Christman



Social Island
Posted July 3, 2011, by Jodi Christman

There was a Heron Branch 3-arch stone bridge over the Connodoguinet at Greenwalt's Mill near Orrstown, in Southampton Township.

Conococheague Creek Bridge
Posted March 17, 2011, by Laura (lamadden [at] sbcglobal [dot] net)

In this area, is there a Herron or Herron's Branch? My ancestors first settled there in this country back in the late 1700's- Herron is my maiden name.