Cornish–Windsor Covered Bridge is an over one hundred and fifty-year-old, two-span, timber King-truss, interstate, covered bridge that crosses the Connecticut River between Cornish, New Hampshire (on the east), and Windsor, Vermont (on the west).

Until 2008, when the Smolen–Gulf Bridge opened in Ohio, it had been the longest covered bridge (still standing) in the United States.

There were three bridges previously built on this site — one each in 1796, 1824, and 1828. The current bridge was built in 1866 by Bela Jenks Fletcher (1811–1877) of Claremont and James Frederick Tasker (1826–1903) of Cornish at a cost of $9,000 (equivalent to $154,002 in 2018). The bridge is approximately 449 feet long and 24 feet wide. The structure uses a lattice truss patented in 1820 and 1835 by Ithiel Town (1784–1844).

From 1866 through 1943, it operated as a toll bridge. According to a 1966 report by the New Hampshire Division of Economic Development, the bridge was plenty long enough to earn the name "kissin' bridge", a vernacular of covered bridges referring to the brief moment of relative privacy while crossing.

In 1866, it connected 'temperance' Windsor with 'wet' Cornish, so authorities asked 2 cents for foot travelers to enter New Hampshire but upped the fee to 3 cents for the return to dry Windsor.

Other tolls in 1866, ran as high as 20 cents (equivalent to $3 in 2018) for a four-horse carriage.

The span was purchased by the state of New Hampshire in 1936 and became toll-free in 1943.

While the Old Blenheim Bridge and Bridgeport Covered Bridge have longer clear spans, and the Smolen–Gulf Bridge is longer overall, with a longest single span of 204 feet, the Cornish–Windsor Bridge is still the longest wooden covered bridge and has the longest single covered span to carry automobile traffic. (Blenheim was and Bridgeport is pedestrian-only.) The Hartland Bridge in Hartland, New Brunswick, Canada, is longer than the Cornish-Windsor Bridge and is currently open, but the claim that Cornish-Windsor was the longest was made when Hartland was closed.

Of the 400 covered bridges that once stood in the state of New Hampshire, as of 2019 only 54 remain.

The bridge was listed on the National Register of Historic Places in 1976.

Located at:  N43 28.421    W72 23.039     -     WGCB #29-10-09 / 45-14-14

Photographed in July of 2019.