Demolition of the Harrison Street Bridge in Worcester began this week, according to the city’s website .

The bridge, which crosses over Interstate 290, will be demolished and replaced with a new one, the city’s website reads. The structure is deficient and the new bridge will improve accommodations for bikers and pedestrians, according to a presentation from the Massachusetts Department of Transportation.

Phase one of the demolition work will take place from 10 p.m. to 4 a.m. starting Dec. 9 and ending Dec. 22. Demolition will typically occur between Sunday and Thursday, according to the city’s website.

“During demolition, traffic over the Harrison Street Bridge will be closed at night with eastbound traffic restored during the day,” the city’s website reads.

The existing bridge

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