RALSTON, Neb. (AP) — Ralston officials are hoping they won’t need their substitute school Tuesday for students who attend Karen Western Elementary.

The students got an unexpected field trip Monday morning to Ralston Arena because of a water main break outside their school building. The kids and staff were taken to the arena for the day so the loss of class time would be minimized.

Assistant superintendent for learning Kristi Gibbs says the main break left the school without pressure for bathrooms, water fountains and other fixtures. She says the district expects the repairs will be completed Monday.

Gibbs says the school has about 175 children enrolled in pre-kindergarten through sixth grade.