Chattanooga to Huntsville Fast is a very direct cycling-safe route between the two towns, for the most part paralleling the main highways and the Tennessee River. Directions to start: Downtown Chattanooga, a couple of blocks south of the Tennessee Aquarium, the intersection of Market Street and East 4th Street.
Miles Turn  Description Leg
0.0 South  from East 4th Street on Market Street, go 5 blocks 0.5
0.5 Right  on West 9th Street / ML King Blvd, go 1 block 0.1
0.6 Left  on Broad Street / TN-2 2.3
2.9 Continue  Broad Street becomes US-41 / US-11 / Cummings Highway 2.9
5.8 Left  on Wauhatchie Pike 2.8
8.6 Left  on US-11 / US-41 / Birmingham Pike 1.1
9.7 Right  on GA-299 3.4
13.1 Continue  GA-299 becomes TN-134 at the Tennessee state line 6.1
19.2 Left  on TN-156 / Shellmound Road
(Warning: watch for expansion joints on bridge entering South Pittsburg at 29.5 miles)
10.8
30.0 Left  on TN-27 / N Cedar Ave 1.5
31.5 Rest Stop  at convenience store in South Pittsburg -
31.5 Continue  on TN-27 / S Cedar Ave 1.2
32.7 Continue  TN-27 becomes AL-74 at the Alabama state line 1.0
33.7 Continue  on AL-74 / Rocky Springs Road 3.4
37.1 Right  on CR-75 5.0
42.1 Right  on E 2nd Street 1.5
43.6 Rest Stop  optional: Left 0.4 miles on Kentucky Ave to convenience store, adds 0.8 miles -
43.6 Right  on Kentucky Ave at light 0.1
  
Miles Turn  Description Leg
43.7 Left  on E Main Street in Stevenson 0.5
44.2 Left  on CR-45 / Russell Pike 6.4
50.6 Right  on CR-42 5.1
55.7 Right  on AL-32 3.1
58.8 Left  on CR-33 2.2
61.0 Right  on AL-470 1.6
62.6 Rest Stop  Pikeville convenience store -
62.6 Continue  south on AL-21 5.1
67.7 Right  on AL-35 / AL-279 / E Willow Street 0.6
68.3 Rest Stop  in downtown Scottsboro -
68.3 Continue  west on AL-35 / AL-279 / E Willow Street 15.3
83.6 Rest Stop  at Woodville convenience store -
83.6 Continue  southwest on AL-35 0.1
83.7 Left  on AL-8 0.1
83.8 Right  on AL-63 / College Street 1.2
85.0 Right  on HWY-72 shoulder 0.1
85.1 Left  on AL-63 / Old Grant Road 0.2
85.3 Bear Left  on AL-108 / Jim Tom Hodges Road 1.2
86.5 Right  on Mill Road 2.2
88.7 Right  on Butler Mill Road 2.5
91.2 Right  on New Hope Cedar Point Road 1.1
92.3 Left  on Cherry Tree Road 7.5
99.8 Right  on Old Highway 431 1.2
101 Finish  at the Cove Park ballfields -