MileCheckOne road ties Alabama together: I-65, from the Gulf at Mobile to the Tennessee line, 366 miles through the middle of everything. Here's how mile markers work across the state, where they matter most, and how to see your exact one plus live ALDOT conditions in real time.
How Alabama numbers its highways
Alabama's mileposts count up from where a route enters the state on the south or west and climb as you head north or east. On I-65 that means mile 0 at Mobile and roughly mile 366 at the Tennessee line. ALDOT's official data tracks interstates and state routes, and MileCheck bundles mile marker data for every Alabama highway so it works offline — no signal needed on a rural stretch of US-431.
The corridors people actually drive
- I-65 is the spine — about 366 miles from Mobile through Montgomery and Birmingham to the Tennessee line.
- I-20 crosses east-west through Birmingham between the Georgia and Mississippi lines.
- I-10 runs the Gulf Coast through Mobile.
- I-59 angles northeast from Birmingham toward Chattanooga; I-22 links Birmingham to Memphis.
Where mile markers matter most
Between Mobile and Montgomery, I-65 runs long, flat, and rural — pine forest and farmland where one mile looks a lot like the next and exits can be far apart. If you break down out there, the milepost is the location you give. The same goes for the I-20 and I-59 corridors outside Birmingham. And when a hurricane pushes in from the Gulf, the whole state's attention turns to one northbound road.
Hurricane season on the Gulf
When a hurricane threatens Mobile Bay and the Alabama coast, evacuations move north on I-65 — and everything about that movement is communicated by mile marker: where traffic is heaviest, where lanes are adjusted, where to find fuel and shelter off which exit. Checking live alerts before you leave, and knowing your exact milepost while you're in the crawl, keeps you oriented on a day when nothing else about the drive is normal.
Live ALDOT alerts, in one place
MileCheck pulls live road alerts straight from ALDOT: closures, crashes, and construction, tied to the mile marker and direction so you can see what's ahead of you on your route — a wreck outside Birmingham, a work zone south of Montgomery, or a coastal closure during a storm.
Everyday and emergency
Whether you're hauling north out of Mobile, commuting the Birmingham interchanges, or reporting a breakdown on a rural stretch of I-65, the mile marker is the location Alabama's roads run on. MileCheck shows yours in real time, down to a tenth of a mile, even where the cell signal drops — and it works on CarPlay and Android Auto too.
Keep reading
Nearby state guides: Florida · Georgia · Mississippi · Tennessee
Alabama drawbridges: every movable bridge, its opening rules →
Essentials: What to tell 911 on the highway · How to find your mile marker · Browse the live mile marker map · All 50 states