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PORTLAND -- A water main ruptured at the site of a Southeast Portland TriMet MAX project Wednesday morning.

The new asphalt at Southeast 8th Avenue and Division Street buckled after the section of pipe burst and filled the road with water.

A TriMet spokeswoman said the rupture was not caused by construction crews. The exact cause had not been determined.

Two water bureau crews planned to work throughout the day and night if necessary to repair the damage. The light rail project was still expected to be completed on time, but the reopening of Southeast 8th Avenue will likely be delayed for up to a week.

Area businesses were not affected. Traffic was only slightly impacted during the morning commute because nearby roads were already closed for construction.

Related: Portland summer construction under way

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KGWReporter Ashley Korslien contributed to this report.

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