Water Main Break Floods Southeast Expressway in Quincy

Crews quickly capped the break, but the cause remains under investigation.

Published on Mar. 9, 2026

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A water main break early Monday morning sent a large volume of water gushing down onto the Southeast Expressway, also known as Interstate 93, in Quincy, Massachusetts. The break occurred at the Robertson Street Overpass above the expressway. Crews were able to cap the break, and no injuries were reported.

Why it matters

Water main breaks can cause significant disruptions to traffic and infrastructure, especially on major highways like the Southeast Expressway. Investigating the cause of this break is important to prevent future incidents and ensure the integrity of the water system in the area.

The details

The water main break happened at the Robertson Street Overpass above the Southeast Expressway, causing a large volume of water to flow down onto the highway below. Crews were able to quickly cap the break, but the cause of the break remains under investigation.

  • The water main break occurred early Monday morning.

The players

Southeast Expressway

Also known as Interstate 93, a major highway in Quincy, Massachusetts.

Robertson Street Overpass

The overpass above the Southeast Expressway where the water main break occurred.

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What’s next

Investigators will work to determine the cause of the water main break in order to prevent future incidents and ensure the reliability of the water infrastructure in the area.

The takeaway

This water main break highlights the importance of maintaining and monitoring critical infrastructure like water pipes, especially in high-traffic areas, to avoid disruptions and potential safety hazards.