A main support of the White Cap Bridge has rotted out, causing Bitterroot National Forest crews to close the structure until repairs can be made.

The pack bridge is in the Selway-Bitterroot Wilderness near Paradise Campground and boat launch. It is not a main bridge for vehicles. It is mainly used by pack stock and hikers and backpackers in the White Cap and Canyon Creek Trails.

A week ago, crews discovered that one of the three main stringers had collapsed, causing the bridge to be unstable and not safe to cross.

The bridge crosses White Cap Creek about 8 miles from the White Cap Trailhead, near the popular Paradise boat launch on the nearby Selway River.

Public Affairs Officer Tod McKay of the Bitterroot National Forest said the bridge will remain closed until further notice. For more information, call the West Fork Ranger District at (406) 821-3269.