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(NEWS CENTER) -- While no Maine bridges made the American Road and Transportation Builder's top 250 worst list, 15 percent of the bridges in the state are "structurally deficient" .

There are 2,402 bridges, meaning 366 bridges are structurally deficient, meaning the bridge is missing one or more of the key elements to a bridge, such as a deck, superstructure or substructure, or is considered to be in poor condition. There are 425 bridges, or 18 percent, that the American Road and Transportation Builder's Association classify as "functionally obsolete," meeting it does not meet current practice design standards. These classifications do not necessarily mean the bridge is unsafe, but that it needs repairs or it is out of date.

On average, federal funds provide 52 percent of annual state DOT capital outlays for highway and bridge projects, said the ARTBA. Maine has proposed to replace 339 bridges in the state, but the cost estimate is more than $800 million. The state estimates that fixing all of the bridge issues would cost more than $900 million.

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