A rainy May and June has caused construction on the new Mill Street Elementary to be behind schedule by six days.

A representative from Balfour Beatty Construction LLC told the Lewisville ISD board of trustees June 10 that as of now they are expected to be complete Aug. 18, which is after the district's first day of school—Aug. 13.

The elementary school, which is being constructed on Mill Street in Lewisville, will replace College Street Elementary.

Trustee Tracy Scott Miller said the best-case scenario is the school is complete two days before school begins and asked Superintendent Kevin Rogers if there was a contingency plan in case the contractor could not make up those six days.

Rogers said staff began looking into contingency plans last week.

Trustee Jenny Proznik asked when the trustees would have to make the call on whether a contingency plan will be put in place.

"We have to create a drop-dead date," Rogers said. "We are going to do that soon. We are still planning and hoping it is ready for kids and staff to move in on time, but we will get to a point in the next two to three weeks on [deciding] whether we need a contingency."

Rogers said if the school will not be ready, the contingency plans will be communicated in "every way possible."