Covered bridges are wooden structures designed to protect the bridge's deck and supporting elements from weather conditions. They often feature a roof and walls, which help to extend the lifespan of the bridge by shielding it from rain, snow, and sunlight. These bridges are typically found in rural areas and are known for their charming, historic appearance. Many covered bridges were built in the 19th century and are considered important cultural landmarks. They often use a truss design for stability and can be found in various styles, such as the Town lattice or Queenpost truss. Today, some covered bridges are preserved as tourist attractions, showcasing their historical significance.