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Last year’s Interstate-35W highway bridge collapse in Minneapolis, the worst such accident in 25 years, was caused by an engineering flaw and the load on its deck, Bloomberg reported, citing U.S. safety investigators.

Reversing Bush administration policies, including its denial of California’s request for a waiver allowing the state to regulate automobile greenhouse-gas emissions, could be high on President-elect Barack Obama’s agenda in January, some observers said.

Manufacturing growth in New York state contracted this month at the fastest pace on record, the Federal Reserve Bank of New York said Monday.

Adding biodiesel to Canada’s existing fuel storage, blending and distribution infrastructure could spur a host of problems for the country's distillate market, the Canadian Trucking Association said.

U.S. consumer confidence rose slightly but remained near a 28-year low this month, according to the Reuters/University of Michigan’s preliminary monthly consumer sentiment index, released Friday.

The United States Postal Service was $2.8 billion in the red in the fiscal year ended in September, the Associated Press reported Thursday.

Business inventories fell 0.2% in September, the largest decline in three years, the Commerce Department said Friday.

Great Dane Trailers said it plans to close its refrigerated trailer manufacturing plant in Savannah, Ga., in January, due to the economic downturn’s effect on the transportation industry and the need for more efficient production.