State DOTs have cameras pointed at almost every highway that matters — the passes, the interchanges, the stretches that ice over first. They use those cameras to run their own roads. The feeds are public, but they're scattered across a dozen different state websites, each with its own map and its own way of hiding the camera you actually want.

So we put them on one map. The new Live Highway Cameras map shows roughly 27,000 highway cameras across 25 states: California, Washington, Oregon, Utah, Montana, Arizona, Nevada, Ohio, South Dakota, Wisconsin, New York, Louisiana, Georgia, South Carolina, Alaska, Delaware, Florida, Michigan, Maryland, West Virginia, Alabama, Maine, New Hampshire, Vermont, and Pennsylvania — plus British Columbia, Ontario, Alberta, and Québec in Canada. It's free on the web, no account needed.

Straight from the DOTs

The images come directly from the state DOTs' own cameras — Caltrans, WSDOT, ODOT's TripCheck, UDOT, MDT, ADOT, NDOT, SDDOT, WisDOT, NYSDOT, Louisiana's DOTD, GDOT, SCDOT, and AKDOT. These are the same cameras the DOTs watch to monitor their own roads, and the images refresh on each DOT's own cycle — typically every few minutes.

Where the DOT provides it, each camera is tagged with its route and mile marker. That matters more than it sounds: "I-90 near MP 52" isn't just a coordinate — it's Snoqualmie Pass. Route plus mile marker tells you exactly which stretch of road you're looking at, the same way the rest of MileCheck works.

What it's actually for

Mountain passes in winter, mostly. Before you commit to I-90 over Snoqualmie, you can look at the actual pavement. Same for the Cottonwood canyons in Utah on a powder morning, or I-80 over Donner Pass in California when the Sierra forecast looks ugly. A forecast tells you what might happen; a camera shows you what the road looks like right now. "Is it actually snowing up there" stops being a guess.

Storm days work the same way anywhere — a camera two hours ahead of you is worth more than a radar loop. And in Washington, the map includes the Washington State Ferries terminal cams, so you can see the holding lanes before you commit to a sailing.

The default view is highway cameras only — city-street cams stay out; this is a map for drivers, not a surveillance directory. Two optional layers are a switch away: FAA aviation weather-cams (nearly 1,000 airfield sites — useful when a mountain airfield shows you what the pass weather is actually doing) and National Park Service webcams (national-park roads, including Mount Rainier). Alaska's highway-name routes (Glenn Highway, Richardson Highway) are in there too.

Part of the same data layer

The cameras map is built on the same data layer as the MileCheck app — the one that already powers live DOT alerts, mile markers in all 50 states, the drawbridge maps, and border waits. The web map shows you the cameras; the app adds the alerts, your exact mile marker, and works on CarPlay and Android Auto.

More states are coming as DOTs' feeds allow. You can browse everything we've mapped so far on the Maps page.