The America's Byways® collection was premiered in 1996 with the designation of 14 National Scenic Byways and eight All-American Roads. Subsequent designation rounds occurred at two-year intervals in 1998, 2000 and 2002, with approximately 30 new byways being added to the collection in each cycle. In 2005, the fifth and most recent round, 40 new routes were designated, the higher number reflecting the three-year gap since the previous round. The America's Byways® collection now includes 99 National Scenic Byways and 27 All-American Roads for a total of 126 routes.
Eighteen of the 126 designated byways in the collection are multi-State routes. Because individual State segments of these multi-State routes were not all designated in the same year, an analysis of the growth of the collection must look at these individual State segments. Of the multi-State routes, 13 are two-State byways, three are three-State routes, one has five State segments, and one six State segments:
As a result, when the state segments of the multi-State byways are counted separately, the total collection is 155 individual state segments, of which 118 are National Scenic Byways and 37 are All-American Roads. Additionally, three nationally designated byways are associated segments in three Canadian Provinces:
Table 2 summarizes the five America's Byways® designation rounds that have occurred, showing the number of newly-designated National Scenic Byways and All-American Roads for each round. The table also indicates the number of byways that moved from National Scenic Byway to All-American Road status in the 2002 and 2005 rounds, and the cumulative number of designated byways. Figure 2 shows the collection's growth graphically. Appendix D lists the byways designated in each round.
|Year||New Designations||From NSB
|Total Designated Byways (Individual State Segments)|
As noted earlier, in the initial designation round, eight of the 22 designated routes (36 percent) were designated as All-American Roads. In subsequent rounds the ratios of All-American Roads to National Scenic Byways have been lower, and in the current collection All-American Roads comprise 32 percent of all designated routes.
Figure 2 : Total Number of Designated Byways