The Third Avenue Bridge between the Bronx and Manhattan in New York City got stuck open earlier this week due to extreme heat.
The bridge's mechanisms failed as temperatures soared past 35C, causing metal components to expand and preventing the bridge from closing properly, according to local news reports.
The bridge's malfunction led to gridlock on both sides of the Harlem River.
Emergency crews and fire boats worked to spray the bridge with water to resolve the issue.
The New York City Department of Transportation was able to get the bridge to close when temperatures had cooled.
The extreme heat has prompted health advisories and the opening of cooling centers across the city.
