Rating:
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McConnell's Mill Covered Bridge 38-37-01

Lawrence County, Pennsylvania

Photos 

Overview

Photo taken May 2006 by Jack Schmidt

BH Photo #108656

Map 

Street View 

Description 

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

View Uglybridges.com report

Facts 

Overview
Covered bridge over Slippery Rock Creek in McConnells Mill State Park
Location
Lawrence County, Pennsylvania
Status
Open to traffic
History
Built 1874; rehabilitated 1957 and 1998
Builders
- Bell and Breckinridge
- J. B. White and Sons
Design
Covered Howe through truss
Dimensions
Span length: 101.0 ft.
Total length: 101.0 ft.
Deck width: 12.8 ft.
Recognition
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:
Portersville
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 (as of 09/2009)
Deck condition rating: Good (7 out of 9)
Superstructure condition rating: Fair (5 out of 9)
Substructure condition rating: Fair (5 out of 9)
Appraisal: Functionally obsolete
Sufficiency rating: 48.1 (out of 100)
Average daily traffic (as of 2006)
150

Categories 

19th Century (6,154)
Bell and Breckinridge (1)
Built 1874 (70)
Built during 1870s (891)
Covered (1,348)
Functionally obsolete (7,943)
HAER documented (1,096)
Have street view (21,864)
Howe through truss (346)
Howe truss (428)
 J. B. White and Sons (1)
Lawrence County, Pennsylvania (70)
NR-listed (2,841)
Open (36,375)
Owned by county (18,799)
Pennsylvania (4,042)
Span length 100-125 feet (4,006)
Through truss (12,857)
Total length 100-125 feet (4,617)
Truss (29,369)

Update Log 

  • 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

Sources 

  • 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
  • Bridgemapper.com - by Todd Wilson and Lauren Winkler
  • Dave King - DKinghawkfan [at] hotmail [dot] com
  • Brian Manville
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Comments 

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.