PORTLAND, Ore. (AP) -- Members of Congress from Oregon and Washington state say it's unlikely the federal government will put up as much money for a new bridge across the Columbia River as local backers of the project hope.

Oregon and Washington planners have assumed members from the two states could get $400 million to $600 million.

The Interstate 5 bridge is expected to cost $4 billion, if built as planned with 12 lanes and light-rail trains.

But Oregon Representative Peter DeFazio and Washington senator Patty Murray say it will be tough to get that much. Both are on key transportation committees.

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They blame sentiment against earmarks, gasoline tax shortfalls, and the financial bailout.

That could mean the bridge will have to be redesigned.