1 vote

McConnell's Mill Covered Bridge 38-37-01



Photo taken May 2006 by Jack Schmidt

BH Photo #108656


Street View 


One of 4 extant Howe-truss covered bridges in Pennsylvania. It is the longest of these that has not been completely rebuilt. Erected originally to transport cargo from a grist mill, the bridge still carries vehicular traffic through what became McConnell's Mill State Park in 1957. In the late 1950s, a steel support structure was added to the deck and an asphalt covering was tacked onto the roof...

-- Historic American Engineering Record


Covered bridge over Slippery Rock Creek in McConnells Mill State Park
Lawrence County, Pennsylvania
Open to traffic
Built 1874; rehabilitated 1957 and 1998
- Bell and Breckinridge
- J. B. White and Sons
Covered Howe through truss
Span length: 101.0 ft.
Total length: 101.0 ft.
Deck width: 12.8 ft.
Posted to the National Register of Historic Places on June 27, 1980
Approximate latitude, longitude
+40.95300, -80.17033   (decimal degrees)
40°57'11" N, 80°10'13" W   (degrees°minutes'seconds")
Approximate UTM coordinates
17/569826/4533871 (zone/easting/northing)
Quadrangle map:
Average daily traffic (as of 2006)
Inventory numbers
WGCB 38-37-01 (World Guide to Covered Bridges number)
NRHP 80003544 (National Register of Historic Places reference number)
PA 37 7212 0415 7020 (Pennsylvania Bridge Management System number)
PANBI 22561 (Pennsylvania BRKEY bridge number on the 2011 NBI)
BH 31143 (Bridgehunter.com ID)
Inspection report (as of September 2016)
Overall condition: Poor
Superstructure condition rating: Poor (4 out of 9)
Substructure condition rating: Fair (5 out of 9)
Deck condition rating: Good (7 out of 9)
Sufficiency rating: 12.4 (out of 100)
View more at BridgeReports.com

Update Log 

  • April 16, 2018: New photos from Richard Doody
  • March 14, 2017: New photos from Brian Manville
  • March 4, 2014: Updated by Dave King: Added street view & imported photos
  • April 10, 2009: New photos from Brian McKee
  • December 18, 2006: Posted photos from Jack Schmidt


  • Jack Schmidt - jjturtle [at] earthlink [dot] net
  • HAER PA-458 - McConnell's Mill Bridge, Spanning Slippery Rock Creek at McConnell's Mill Road (Township Route 415), Ellwood City vicinity, Lawrence County, PA
  • Dale Travis Covered Bridge List
  • Brian McKee - bjmckee51 [at] yahoo [dot] com
  • HAER PA-458 - McConnell's Mill Bridge, Spanning Slippery Rock Creek at McConnell's Mill Road (Township Route 415), Ellwood City, Lawrence County, PA
  • Wikipedia
  • Todd Wilson
  • Dave King - DKinghawkfan [at] hotmail [dot] com
  • Brian Manville
  • Richard Doody


McConnell's Mill Covered Bridge 38-37-01
Posted January 25, 2016, by Nathan Holth (webmaster [at] historicbridges [dot] org)

Given the location of this bridge, and the date of its construction, I strongly believe that "J. B. White" is a typo, and should refer to T. B. White and Sons of New Brighton, PA. This haer documentation http://lcweb2.loc.gov/master/pnp/habshaer/oh/oh1600/oh1600/d... for a different bridge noted that White did build timber bridges, and originally was a carpenter.