See I-80 right now — live DOT cameras and real-time conditions along the great coast-to-coast route, from San Francisco to the New York area, each tagged with its mile marker. Donner Pass and the Wasatch to the Great Lakes, on one map.
San Francisco to New Jersey · coast to coast. Here's what to watch, and where the weather actually bites.
I-80 runs about 2,900 miles from the San Francisco Bay Area to the edge of New York City, roughly tracing the old transcontinental routes. It crosses the Sierra Nevada, the Nevada and Utah desert, the Wasatch, the Great Plains, and the industrial Midwest.
Two mountain crossings define I-80's winter: Donner Pass in the Sierra Nevada, one of the snowiest stretches of interstate anywhere, and Parleys Summit east of Salt Lake City. Beyond the mountains, the open stretches across Nevada, Wyoming, and Nebraska are notorious for wind and ground blizzards that close the road with no mountains in sight.
The live map above shows active closures and incidents along I-80, straight from each state DOT; a red banner appears at the top of this page if a stretch is fully closed. See the US closures map for everything. The most common winter closure is Donner Pass.
About 2,900 miles from San Francisco to the New Jersey side of New York City — one of the great coast-to-coast interstates.
Donner Pass in the Sierra Nevada for snow, and the open high plains of Nevada and Wyoming for wind and ground blizzards. See all mountain pass conditions.
Yes — Caltrans runs chain controls and full closures on I-80 over Donner Pass throughout the winter. Track your mile marker over the summit with the MileCheck app.
MileCheck shows your nearest mile marker in real time as you drive I-80, plus live state DOT feeds on your route and the nearest camera. Works offline and runs on CarPlay and Android Auto.
The Monthly Highway Report
Your state's reported closures, crashes and roadwork, once a month by email. See the September report. No spam.
MileCheck