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| ROUTE LOG |
EXIT 1 - I-40 (exit 421): 0 - 0 EXIT 4 (old exit 1) - TN 341: 4.2 - 4.2 Jefferson-Hamblen Line: 3.4 - 7.6 EXIT 8 (old exit 2) - US 25E, TN 32, TN 113: 0.4 - 8.0 EXIT 12 (old exit 3) - TN 160: 4.1 - 12.1 EXIT 15 (old exit 4) - TN 340: 3.1 - 15.2 Hamblen-Greene Line: 2.3 - 17.5 EXIT 23 (old exit 5) - US 11E, TN 34: 5.5 - 23.0 EXIT 30 (old exit 6) - TN 70: 7.4 - 30.4 EXIT 36 (old exit 7) - TN 172: 6.1 - 36.5 EXIT 44 - Jearoldstown Rd: 8.1 - 44.6 Greene-Washington Line: 5.0 - 49.6 EXIT 50 (old exit 8) - TN 93: 0.7 - 50.3 Washington-Sullivan Line: 3.2 - 53.5 Exit 56 - Tri-Cities Crossing: 2.4 - 55.9 EXIT 57 (old exit 9) - I-26, US 23: 0.9 - 56.8 EXIT 59 (old exit 10) - TN 36: 2.3 - 59.1 EXIT 63 - TN 357: 4.0 - 63.1 EXIT 66 (old exit 11) - TN 126: 3.1 - 66.2 EXIT 69 (old exit 12) - TN 394: 3.1 - 69.3 EXIT 74 (old exit 13) - US 11W, TN 1: 5.4 - 74.7 VA STATE LINE: 0.9 - 75.6
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Creation: Appeared in 1939 as part of the long-term national
planning leading to the Interstate system. Was numbered as I-81 in August,
1957.
| Adjustments: The first segment of I-81 to open was the short segment from US 11W to the Virginia line, in Dec 1961 (per Scott Kozel's website. Despite having next to no I-81 open, and I-40 not open on to Knoxville, Tennessee requested permission in May 1966 to sign I-81 with I-40 to I-75 (now I-275) in downtown Knoxville. AASHO initially said no but in July 1966 said they were mistaken and it was up to Tennessee whether to dual sign 40-81 into Knoxville. When I-40 was opened from I-81 to Knoxville in 1975, I don't have any evidence Tennessee co-signed the routes. In Dec 1966 (per Wikipedia), I-81 opened from I-40 to US 25E. In June 1970, I-81 opened from US 25E to TN 160. In Dec 1970 (per Wikipedia), I-81 opened from TN 160 to US 11E.
In Dec 1972 (per Wikipedia), I-81 opened from TN 126 to US 11W. In Dec 1966 (per Wikipedia), I-81 opened from I-40 to US 25E. In Dec 1974 (per Wikipedia), the remainder of I-81 opened from US 11E to TN 126, though with some 2-lane segments. I-81 was fully 4-laned everywhere in August 1975.
 I-81 fully finished 1975 Rand McN Improvements: 4-laned throughout upon completion. In 1987 or 1988, I-81 NB received a 1-mile truck lane approaching Jearoldstown Rd In 2002, I-81 was 6-laned from Virginia to just past US 11W. In 2019, I-81 NB received a truck lane from the Holston River to TN 357. New Exits Added: TN 357, 1976 Jearoldstown Rd, 1979 Tri-Cities Crossing, 2002 or 2003 Comment: Not as congested as Virginia's portion, despite the still-high percentage of truck traffic. Fewer long/steep grades in Tennessee. | ||||||||
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Page last modified 20 April 2024