Sonestown Covered Bridge

When Sullivan County had thirty covered bridges in eighteen ninety, the roads across its creeks and runs were stitched together by a network of wooden spans that kept the timber economy moving through the mountains. Nearly all of them are gone. As of today, only three remain standing in the county: Forksville, Hillsgrove, and the one at Sonestown, which at about one hundred ten feet.

The Sonestown Covered Bridge, also known as the Davidson Covered Bridge for the township it serves, was built around eighteen fifty by Sadler Rogers, who was by trade a farmer, logger, and builder in the classic Pennsylvania frontier tradition. Rogers used the Burr arch truss, the dominant construction method for covered bridges in the region. The design sandwiches a long timber arch between rows of vertical king posts, giving the span both flexibility and strength. The arch handles the live load of wagons and later automobiles; the king posts stabilize the whole assembly against racking. It is an elegant piece of structural thinking produced long before engineers wrote equations for it.

The reason for covering wooden bridges was straightforward: exposed timber on a river crossing rots in a matter of years. With a proper roof and siding to keep the rain off the structural members, a bridge could last decades. The investment in carpentry paid for itself many times over in extended service life.

Rogers built this crossing to serve a grist mill that operated at the site until the early twentieth century. Grain grown on the plateau farms above came down to be ground, and the bridge was the link that made the mill accessible. When the mill closed, the bridge kept serving the road. It has survived floods, ice jams, and storm damage that claimed neighbors built to similar standards on the same streams.

The bridge was placed on the National Register of Historic Places in nineteen eighty, recognition that this kind of working vernacular engineering is worth preserving not as a curiosity but as a document of how communities solved the problem of getting from one side of a creek to the other.