Pier Bridge in Newport, New Hampshire, is a rare covered railroad bridge built in 1907 for the Boston and Maine Railroad and now reused as part of the Sugar River Trail. Spanning the Sugar River on two sections divided by a central pier, it stands out among the state's covered bridges because it was designed for rail traffic rather than road use. Its construction blends Town-style lattice and Pratt trusses with wooden and iron connections. The bridge served a rail line that began as the Sugar River Railroad, remained in operation to Newport until 1977, and was later abandoned. As one of only two surviving railroad bridges from that line, it is recognized for its rarity and regional railroad significance.