Thursday's forecast for wet weather is wreaking havoc on construction schedules.

The stormy weather has forced officials to cancel the delivery Thursday of huge support beams for the 15th Street bridge and Ward Street bridge projects.

The delivery of the beams had caused traffic delays while an 18-wheeler made its way south from Route 22 on 15th Street to Martin Luther King Jr. Drive in Allentown.

Delivery will resume on Friday.