Both lanes of the reconstructed Causeway are open to traffic, but single-lane closures will periodically occur until the unofficial start of the summer season next month, state Department of Transportation officials said. The single-lane closures will be from 7 a.m. to 6 p.m., Monday through Friday, for final paving and are expected to occur over the next month, according to the DOT. Two lanes of westbound traffic are expected to be open on the Old Causeway Bridge on weekends.

Paving is slated for completion before Memorial Day weekend, and two lanes of traffic in each direction should be…