Question: The 5th street bridge, also known as the Arthur J. DiTommaso Memorial Bridge, is a cable stayed bridge in Fitchburg, Massachusetts, in which country?
Related documents: [0]  [DOC] Fitchburg is the third largest city in Worcester County, Massachusetts, United States. The population was 40,318 at the 2010 census. Fitchburg is home to Fitchburg State University as well as 17 public and private elementary and high schools. [END] 
[1]  [DOC] The 5th street bridge, also known as the Arthur J. DiTommaso Memorial Bridge, is a cable stayed bridge in Fitchburg, Massachusetts. It crosses the North Nashua River and the Fitchburg Line of the MBTA Commuter Rail. [END] 
Answer: 
United States
United States