Riverwalk Bridge The Riverwalk Bridge is Littleton NH's only covered bridge. This 352 foot, Warren Truss pedestrian bridge was completed in September 2004 Littleton, NH Other Attractions Fair Feather Wild Game Ranch Littleton, NH Other Attractions Advanced Graphic Communication Littleton, NH Other Attractions Littleton Motel Littleton, NH Businesses Arts Alliance of Northern New Hampshire Littleton, NH Other Attractions