You can find maps and route resources by state for each established U.S. Bicycle Route.
Adventure Cycling provides a central information source for cyclists interested in riding U.S. Bicycle Routes but does not create U.S. Bicycle Route (USBR) maps. State transportation agencies or bicycle/trail advocacy groups create the USBR maps for the routes that pass through their state; however, the maps come in various formats and some have yet to be created. Below you can search by state to find the maps and other route resources such as cue sheets, interactive maps, and route guides that are available for each state.
Source: Maps and Route Resources