MileCheckMileCheck Blog
Field notes from the road.
What it takes to build real-time highway data for the people who drive for a living — state DOT integration, mile-marker infrastructure, and the gaps the big nav apps left behind.
Featured — Road safety
What to Tell 911 When You Break Down on the Highway
Stranded on the shoulder? Here's exactly what dispatch will ask and the order they'll ask it in — starting with the one thing that finds you fastest: your mile marker.
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When a Wildfire Closes the Highway: How to Know Before You're Stuck
Wildfires close Western highways every summer, often with no warning. How fire closures work, how to check your route, and the free live map of every US fire plus the closures they cause.
Read14,500 Highway Cameras, 14 States, One Map
See the actual road before you drive it — live DOT cameras from Caltrans to AKDOT on one free map, each tagged with its route and mile marker. Check the pass, the storm, or the ferry line.
ReadEvery drawbridge in America has a rulebook. We mapped it.
800+ regulated drawbridges, one federal rulebook (33 CFR 117), six live maps — Florida and Louisiana with live status, plus NJ, NC, WA, and Seattle.
Mile markers, state by state
The driver’s guides to how each state’s mileposts work — all 50 states, from Hawaii’s H-1 to the Maine woods.
Browse the libraryHow to Find Your Mile Marker on the Highway
What the little green signs mean, which direction the numbers run, what exit numbers have to do with it — and how to know your mile marker even when you can't see a sign.
ReadMile Markers vs. GPS: Why Both Still Matter on the Highway
We all have GPS in our pockets, so why do mile markers still matter? Because they're the one thing your phone can't actually tell you on the highway.
ReadMileCheck is now on the Geotab Marketplace
Fleets running Geotab can now add real-time highway mile markers and live DOT road alerts directly inside MyGeotab and Geotab Drive — no rebuild. Here's what it does and why it matters.
ReadMileCheck is live on CarPlay — and why Driving Task approval is rare
CarPlay and Android Auto are live. What Apple's Driving Task category is, why so few apps clear the review, and why a deliberately boring car screen is the point.
ReadWhy Google Maps can't tell you a lane is closed at MP 142
Every state DOT publishes road-condition alerts in real time. No major navigation app pulls them in. Here's the gap — and what I built to close it.
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