See the tunnel before you drive it. Live CDOT cameras and real-time conditions on I-70 at the Eisenhower–Johnson Memorial Tunnels — the highest point on the entire U.S. Interstate Highway System, and the main route from Denver to Colorado's ski country.
Eisenhower Tunnel carries I-70 over the Continental Divide at 11,158 ft. Here's what to watch, and when it bites.
The tunnel bores through the Continental Divide, so it doesn't close for snow the way an open summit does — but the approaches on both sides do, for avalanche control, whiteout conditions, and the crashes that pile up on a steep, high-altitude grade in bad weather. Chain law and traction law restrictions on I-70 through this stretch are common all winter, and holiday ski traffic can back the approaches up for miles even in clear weather.
At 11,158 feet, the Eisenhower Tunnel isn't just the high point of I-70 — it's the highest elevation reached anywhere on the U.S. Interstate Highway System. Air is noticeably thinner here, grades are steep on both approaches, and the westbound bore (Eisenhower) and eastbound bore (Johnson) are close enough together that an incident in one often slows traffic in both.
The cameras and alerts above are the stationary view — the CDOT feeds you'd check before you leave. In the MileCheck app, the nearest camera and your exact mile marker follow you up the grade automatically, hands-free on CarPlay and Android Auto, so you're never guessing which stretch you're on.
The live map above shows active closures and incidents on I-70 through the tunnel and its approaches, straight from CDOT. See the whole route on the I-70 corridor page or the US closures map. Closures here are usually avalanche control or weather on the approach grades, not the tunnel itself.
CDOT sets traction and chain law restrictions on I-70 through this stretch, and they tighten fast in a storm. Watch the live cameras above for conditions on the approach grades, and always follow posted signs.
11,158 feet — the highest point on the entire U.S. Interstate Highway System, not just I-70. Compare it with Vail Pass further west on the same corridor.
About 60 miles west on I-70. Track your mile marker through the tunnel and over the Divide with the MileCheck app on CarPlay or Android Auto.
MileCheck shows your exact mile marker in real time as you drive I-70 over Eisenhower Tunnel, plus the nearest camera and any alert on your route. Free to start, works offline, and runs on CarPlay and Android Auto.
MileCheck