National Bridge Inventory data for some Allston/Brighton bridges

The terrible bridge collapse in Minneapolis is another reminder of the huge backlog in maintenance that exists for the infrastructure of our country. Here at home there are plenty of examples. The Federal Highway Administration does an annual survey of our nation's bridges called the National Bridge Inventory. The raw data is a bit unwieldy, but here is some information about bridges the cross the Charles from Allston and Brighton into Cambridge and Watertown.

Name	Year Built	Avg Daily Traffic	Total Improvement Cost	Status
ARSENAL ST / WESTERN AVE	1925	40,000	$3.2 million	Functionally Obsolete
CAMBRIDGE ST / RIVER ST	1925	32,100	$3.3 million	Functionally Obsolete
ELIOT BRIDGE	1950	51,000	$6.3 million	Not Deficient
N HARVARD ST	1912	29,000	$3.7 million	Functionally Obsolete
WESTERN AVE	1924	33,000	$4.2 million	Not Deficient

Possible designations for Bridge Status are Structurally Deficient, Functionally Obsolete, Not Deficient.