Fifth Street Bridge, Spanning MBTA Fitchburg Commuter Rail Line tracks, Conrail Fitchburg Secondary Line & North Nashua River, Fitchburg, Worcester County, MA
Summary
Significance: The Fifth Street Bridge is the only reinforced concrete through-arch highway bridge presently known in Massachusetts and one of only eight Massachusetts highway bridges to include open-spandrel concrete deck-arch spans. The bridge's self-supported structural steel arch rib reinforcing (as opposed to the now predominant steel rebar reinforcing) represents an early and rather rare development of the Melan reinforcing system. The bridge also exemplifies some of the technological problems in early reinforced concrete bridge design and construction.
Survey number: HAER MA-143
Tags
Date
1969 - 1980
Contributors
Historic American Engineering Record, creator
Location
Fitchburg (Mass.), 42.57611, -71.83417
Source
Library of Congress
Copyright info
No known restrictions on images made by the U.S. Government; images copied from other sources may be restricted. http://www.loc.gov/rr/print/res/114_habs.html