Keywords: McConnell's Mill Covered Bridge underside.jpg 40 57 10 N 80 10 14 W Northern side and underside of w McConnell's Mill Covered Bridge at McConnells Mill State Park located in far eastern Slippery Rock Township Lawrence County Pennsylvania Slippery Rock Township Lawrence County Pennsylvania Lawrence County Pennsylvania United States Built in 1874 the bridge is listed on the National Register of Historic Places Picture taken from rocks below the western end of the bridge Own 2009-05-16 User Nyttend Nyttend No<nowiki></nowiki>ne Canyons McConnell's Mill Covered Bridge Undersides of bridges in the United States Building-centered pictures by User Nyttend Taken with Canon PowerShot A540 |