The FDNY responded to a water main break at a construction site on Broadway and Van Cortlandt Park South on Wednesday.

The call for the break at 5925 and 5969 Broadway came in at 10:34 a.m. The site is half an elementary school and half housing.

Nearby roads have since reopened following closures on the Major Deegan Expressway in both directions from West 230th Street to Van Cortlandt Park South, but other issues remained.

Fire officials say their main concern is the water entering the construction site, which is fairly large with a 300-foot crane right in the middle of it. They say when water gets into these areas, they get concerned with undermining of the footing for the crane.

Officials say they evacuated the area of foot and car traffic around the site to be safe. Residents were allowed to remain in their homes, but were being cautioned to avoid exiting the vicinity of the site.

Officials were awaiting an engineer to evaluate the crane’s stability before resuming normal operations.

Trains on the Broadway line were operating at slower speeds.

According to the city Department of Environmental Protection, private contractor Metropolitan Water & Sewer struck the water main.

The DEP says the break has been isolated, so no customers are without water. A timeline for a fix is currently unclear, but pressures are largely normal as of Wednesday evening.

Site developer Tishman Speyer said in a statement, “A subcontractor at our Van Cortlandt Park South construction site inadvertently struck a water main this morning. As public safety is our highest priority, we immediately alerted all relevant New York City agencies, which are now on site. We are working in close collaboration with the Office of Emergency Management, FDNY, DEP and DOB to resolve the issue as quickly as possible. We are committed to preserving the safety and quality of life of the communities we serve, and we apologize for the inconvenience this situation has caused local residents."