PORTLAND — The Maine Turnpike says the interchange bridge at Exit 53 of the toll road will be reduced to one-lane traffic.

The change, which begins today, is due to removal and replacement of the existing bridge deck. In order to maintain traffic on the bridge, traffic lights will be installed. Motorists should expect delays, especially during high-volume traffic times.

The $3.9 million project began in August and includes raising and widening of the bridge and repairs to all of its ramps.

The project will be completed in the fall of 2012.

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