ROBINSON, Pa. (KDKA) – All Montour school buildings closed early after a water main break in front of the high school.

Allegheny County says the water main break, which happened around 2 p.m. Tuesday, was on Clever Road in front of the high school. Clever Road to Aiken Road Ext. was closed.

The county says Montour doesn’t have water so it’s planning on releasing students early.

There was emergency access to the school that was opened while students left.

(Photo Credit: KDKA’s Jen Borrasso)

According to Montour School District, all school buildings were forced to dismiss 30 minutes early.

Evening activities at the high school and elementary campuses were also canceled.

There were seven houses that were affected, but the damage is mainly on the road.

“We are going to do a temporary patch then do everything else tomorrow in the daylight,” said Shawn Bryan of the Municipal Authority of Robinson.

Water service has since returned.

The cause could be a number of things, including old age.

Police advised residents to avoid the area while repairs were underway and school was letting out.

During rush hour traffic, Robinson Township Police said to expect back-ups.

“Traffic impact is going to be very heavy around rush hour,” said Sgt. Noel Pilewski with the Robinson Township Police Department. “I would expect 45-minute delays to an hour at least. This is pretty heavily traveled.”

The superintendent says school is expected to be back in session Wednesday morning. If anything changes, parents will be notified.

Stay with KDKA.com for the latest on this developing story.