| Month |
| Year |
| Adjusted Average Daily Traffic |
| Station Number |
| Route |
| Location |
| Carter County Traffic Counts |
| 4/14/06 |
| SR-400 |
| WATAUGA BETWEEN BRISTOL HWY & TAYLOR |
| 000011 |
| 1.29 |
| Growth Factor |
| 08 |
| 1985 |
| 5,295 |
| 07 |
| 1986 |
| 6,190 |
| 07 |
| 1987 |
| 6,045 |
| 07 |
| 1988 |
| 6,518 |
| 08 |
| 1989 |
| 6,400 |
| 08 |
| 1990 |
| 6,680 |
| 11 |
| 1991 |
| 7,447 |
| 10 |
| 1992 |
| 6,677 |
| 10 |
| 1993 |
| 7,577 |
| 11 |
| 1994 |
| 7,938 |
| 12 |
| 1995 |
| 7,516 |
| 10 |
| 1996 |
| 7,330 |
| 07 |
| 1997 |
| 7,514 |
| 08 |
| 1998 |
| 7,611 |
| 11 |
| 1999 |
| 6,927 |
| 10 |
| 2000 |
| 7,691 |
| 10 |
| 2001 |
| 7,572 |
| 10 |
| 10 |
| 10 |
| 10 |
| 2002 |
| 2003 |
| 2004 |
| 2005 |
| 7,226 |
| 7,223 |
| 7,440 |
| 7371 |