Traverse the Chatham Bridge, part of the East Coast Greenway. The original Chatham Bridge was constructed in the 1820s. Today's structurally improved bridge provides scenic views of downtown Fredericksburg and the Rappahannock River. The East Coast Greenway Trail spans 15 states, connecting 450 cities and towns. It is about 3,000 miles in total going from Maine to Florida. Look out for the ECG Trail blaze, an image of a green tree above and a blue one below, inverted.