Assertion: covered bridge | /r/AtLocation | the united states
Facets:
Source sentences:
text: According to Covered Bridges Today by Brenda Krekler, as many as 12,000 covered bridges once existed in the United States; that number dropped to under 1,500 by the 1950s.
text: The first covered bridge appeared in the United States not too far from Bucks County, in Philadelphia in 1805.
text: The longest, historical covered bridges remaining in the United States are the Cornish-Windsor Bridge, spanning the Connecticut River between New Hampshire and Vermont, and Medora Bridge, spanning the East Fork of the White River in Indiana.