The new bridge at Hell Canyon on State Route 89 at milepost 345 will open to traffic on Thursday (June 23) by midnight. Minimal impacts are expected.

For the past year, crews have been working on a new $14.4 million improvement project which included the construction a new four-span steel-plate girder bridge to the east of the existing bridge. The removal of the existing three-span steel deck truss bridge is expected to occur in mid-July.

ADOT advises drivers to proceed through the work zones with caution, slow down, and be alert for construction equipment and personnel.