Rating:
7 votes

Iron Springs Road Bridge

Photos 

West portal

Photo taken by Jodi Christman 9/17/2011

Enlarge

BH Photo #213865

Map 

Description 

FROM THE 1996-2001 PENNSYLVANIA HISTORIC BRIDGE SURVEY: "The one span, 25'-long, stone arch bridge has voussoirs and spandrel walls with heavy vegetation growing in the earth fill. The bridge was built between 1836 and 1842 as part of the Tapeworm RR, a state sponsored project that was intended to connect Gettysburg with Thaddeus Stevens' iron furnaces in Franklin County. Cuts, embankments, and this stone bridge were completed before the state stopped appropriations and the project was abandoned in 1842. The line was derisively called the Tapeworm RR by its political opponents who saw the meandering line as one of the worst abuses of state-owned internal improvements. As a result of the Tapeworm RR and other canal and railroad projects, the state went heavily into debt. After 1842, state participation in internal improvements declined. The bridge is historically significant for its association with the Tapeworm RR."

"The bridge carries a 2 lane road over a stream in a sparsely developed, forested mountain setting with scattered 20th century residences. Upstream of the bridge is a complex of seasonal cabins with a small dam and decorative metal waterwheel."

Facts 

Overview
Stone arch bridge over Toms Creek on PA 3014
Location
Adams County, Pennsylvania
Status
Open to traffic
History
Built 1836-42 by the Tapeworm Railroad
Design
Stone arch
Dimensions
Span length: 24.9 ft.
Total length: 24.9 ft.
Recognition
Eligible for the National Register of Historic Places
Approximate latitude, longitude
+39.76928, -77.42396   (decimal degrees)
39°46'09" N, 77°25'26" W   (degrees°minutes'seconds")
Approximate UTM coordinates
18/292385/4404960 (zone/easting/northing)
Quadrangle map:
Iron Springs
Inventory numbers
PA 01 3014 0070 0000 (Pennsylvania Bridge Management System number)
PANBI 00321 (Pennsylvania BRKEY bridge number on the 2011 NBI)
BH 30200 (Bridgehunter.com ID)
Inspection (as of 10/2009)
Superstructure condition rating: Fair (5 out of 9)
Substructure condition rating: Fair (5 out of 9)
Sufficiency rating: 88.8 (out of 100)
Average daily traffic (as of 2009)
700

Categories 

19th Century (6,182)
Adams County, Pennsylvania (40)
Arch (11,192)
Built during 1840s (155)
Closed-spandrel arch (3,602)
Deck arch (10,431)
NR-eligible (3,971)
Open (36,571)
Owned by state (13,675)
Pennsylvania (4,175)
Skewed (4,672)
Span length under 25 feet (5,767)
Stone arch (2,649)
Total length under 25 feet (1,995)

Update Log 

  • January 6, 2012: Updated by Jodi Christman: Added description note
  • September 18, 2011: Updated by Jodi Christman: Tweaked GPS, added bridge design and description details

Sources