| Month |
| Year |
| Adjusted Average Daily Traffic |
| Station Number |
| Route |
| Location |
| Carter County Traffic Counts |
| 4/14/06 |
| SR-400 |
| WATAUGA BETWEEN OLD WATAUGA & HILTON HILL |
| 000099 |
| 1.61 |
| Growth Factor |
| 08 |
| 1985 |
| 3,931 |
| 07 |
| 1986 |
| 4,305 |
| 07 |
| 1987 |
| 4,710 |
| 07 |
| 1988 |
| 4,915 |
| 08 |
| 1989 |
| 4,700 |
| 08 |
| 1990 |
| 4,505 |
| 11 |
| 1991 |
| 4,451 |
| 10 |
| 1992 |
| 5,194 |
| 10 |
| 1993 |
| 5,309 |
| 11 |
| 1994 |
| 4,672 |
| 12 |
| 1995 |
| 5,483 |
| 10 |
| 1996 |
| 5,371 |
| 07 |
| 1997 |
| 5,517 |
| 08 |
| 1998 |
| 5,753 |
| 11 |
| 1999 |
| 5,894 |
| 10 |
| 2000 |
| 5,677 |
| 10 |
| 2001 |
| 5,787 |
| 10 |
| 10 |
| 10 |
| 10 |
| 2002 |
| 2003 |
| 2004 |
| 2005 |
| 5,404 |
| 5,326 |
| 5,634 |
| 5,967 |