CAMBRIDGE
Road bridge is on:	Rte. 3 southbound Mem Drive
What bridge crosses:	Charles River
Date built:	1956
Last major rebuild:	None
Deck rating:	Good	[ What this means ]
Superstructure rating:	Good	[ What this means ]
Substructure rating:	Poor	[ What this means ]
Overall structure evaluation:	4	[ What this means ]
AASHTO bridge sufficiency rating:	52.5	[ What this means ]
Structurally deficient?	Yes	[ What this means ]
Functionally obsolete?	No	[ What this means ]
[ Close ]
Note: Ratings in red indicate particularly serious problems. Source: Massachusetts Highway Dept., Federal Highway Administration.