CAMBRIDGE
Road bridge is on:	US 3 Alewife Pkwy
What bridge crosses:	MBTA Red Line
Date built:	1983
Last major rebuild:	None
Deck rating:	Good	[ What this means ]
Superstructure rating:	Good	[ What this means ]
Substructure rating:	Very good	[ What this means ]
Overall structure evaluation:	7	[ What this means ]
AASHTO bridge sufficiency rating:	66	[ What this means ]
Structurally deficient?	No	[ What this means ]
Functionally obsolete?	Yes	[ What this means ]
[ Close ]
Note: Ratings in red indicate particularly serious problems. Source: Massachusetts Highway Dept., Federal Highway Administration.