The 1850 Sonestown Covered Bridge crossing the Muncy Creek in Sullivan County, Pennsylvania. This 110 foot long bridge was named for the nearby village of Sonestown and is also known as the Davidson Covered Bridge, which provided access to a grist mill that operated until the early 20th century. 

The Sonestown bridge is a Burr arch truss type with a load-bearing arch with multiple vertical king posts for strength and rigidity. The bridge construction is cruder than the other two surviving covered bridges in Sullivan County, each with a Burr arch formed from six straight beams set at angles instead of a smooth curve. It is thought that Sadler Rogers built the bridge as he had built other bridges in Sullivan County during that period.

The Sonestown bridge is on the 2016 Federal Highway Administration National Bridge Inventory (NBI), which lists the covered bridge as 110 ft long, with a roadway 13 feet 6 inches wide, and a maximum load of 5.0 short tons (4.5 t). However, the maximum load posted beside the bridge itself is only 3.0 short tons (2.7 t). According to the NRHP form, the Sonestown bridge "is of lighter construction than similar bridges in south-eastern Pennsylvania" of stone and mortar, which have been reinforced with concrete. The portals are flanked by wing walls below the level of the road; these extend out from the abutments at an angle and "retain the soil of the approach embankment".

In the 19th century, the Sonestown Covered Bridge survived major floods on March 1, 1865, and June 1, 1889, that destroyed other bridges in the West Branch Susquehanna Valley. The latter flood was caused by the same storm system that caused the Johnstown Flood, which killed over 2,200 people. In 1885, the Williamsport and North Branch Railroad line along Muncy Creek reached Sonestown, passing just east of the bridge. The railroad carried lumber, coal, and passengers until it closed in 1938.

The bridge was repaired in 1969 and after flood damage in 1996, 2005, 2013, and 2020. It was also restored in 2001. Since the 2013 restoration, it has had a small window in the center of each side which had no windows before. Despite the repairs and restoration, however, the bridge structure's sufficiency rating on the National Bridge Inventory was only 21.3 percent in 2016, and its condition was deemed "basically intolerable requiring high priority of corrective action", and as of 2020, is open only to pedestrian traffic.

The area that became Davidson Township was first settled in 1806 and was incorporated as a township in 1833. Within the township, George Sones built a sawmill and founded the village of Sonestown in 1843. The bridge was built in 1850, and in the late 19th century Sonestown "boomed" as the lumber industry grew in Sullivan County. The village was then home to a plant that manufactured the staves for making barrels. It also had a clothespin factory from 1903 to 1929 but lost almost all industry by the 1930s. As of 1996, Sonestown had a population of about 200, a few stores, and an inn with a restaurant, attracting tourists and hunters.

It was placed on the National Register of Historic Places in 1980.

Located at: N41 20.77  W76 33.30   -   WGCB #38-57-03

Photographed in May 2023.