The Longest Tunnel In Utah Has A Truly Fascinating Backstory

The tunnel cost $1,896,000 to build, and was the longest tunnel of its kind in the U.S. at the time.

Prior to the tunnels construction, visitors had to travel along rough, dirt roads to get to Zion. The completion of the tunnel shortened the journey by 70 miles, and provides easy access to the east part of the park.

The methods used to blast through the rock were those typically used in mining. Huge boulders had to be blasted with dynamite. Rock slides were common, and one man was killed when he was hit with a large boulder while he was working on the road below.

First, get your vehicle measured at the entrance. If your vehicle measures more than 7’10" wide or 11’4" tall, you’ll be required to purchase a tunnel permit for $15. You’ll be allowed to travel through the tunnel twice within seven days on your permit, and park rangers will stop two-way traffic when you proceed through the tunnel.

During summer months, the tunnel is very busy, and traffic can back up. Be patient, and don't try to turn around once you're past the tunnel kiosk. Don't stop in the tunnel, and keep an eye out for park rangers who may have special instructions, depending on traffic.