CHEYENNE, Wyo. (AP) — Work is half done on a major project to repair the viaduct over the Union Pacific railroad tracks in downtown Cheyenne.

The Wyoming Department of Transportation says work is essentially done on the southbound lanes of Central Avenue.

Attention will turn to the northbound lanes starting Monday.

The bridges are the main corridor linking north and south Cheyenne. The project involves replacing damaged concrete.

The bridges are about a third of a mile long and among the longest in Wyoming.

Work on the project is scheduled to wrap up in May.

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