Another notable answer to this question — an answer that shows up consistently on internet searches — is that a round manhole cover, unlike a square one, will not fall back through its opening ...

“The principal reason that manhole covers are round is so they won’t fall into the manhole.” If a manhole is square, rectangular or even oval, it can fall into the manhole if you insert it ...

At some point in your life, you may have wondered why manhole covers are round, and what the markings ... as you can roll them along their edge, and square manhole covers have a larger surface ...

Manhole covers are designed to stay in place, with their round shape preventing them from falling in. But they can become ...

Two manhole explosions on Brattle Street shut down traffic in Harvard Square amid undergraduate move-in Wednesday morning, according to the Cambridge Fire and Police departments. No bystanders ...

CAMBRIDGE - Two manhole explosions shut down Harvard Square Wednesday. It happened shortly after 8:30 a.m. on Brattle Street. It's not clear yet what caused the explosions. Eversource raced to ...

CAMBRIDGE — Multiple manhole explosions shut down Harvard Square for hours on Wednesday, prompting the evacuation of nearby buildings, shuttering businesses, and surprising Harvard students ...

CAMBRIDGE, MASS. (WHDH) - Parts of Harvard Square remain closed to both vehicle and foot traffic after multiple manhole explosions sent flames shooting into the air on Wednesday and crews continue ...

ACCORDING TO T Members of the Cambridge Fire Department returned to Harvard Square on Thursday for smoke in a restaurant previously impacted by the power outage that followed a series of manhole ...

Update: Harvard Square has been reopened to all traffic, Cambridge police posted on X at 12:22 p.m. An explosion from a manhole in Cambridge shut down part of Harvard Square to traffic on ...