Some West Anchorage residents were awakened by a loud banging noise late Monday night.

Alaska Department of Transportation spokeswoman Shannon McCarthy said what those residents heard was contractors installing part of the foundation for a new sign over Minnesota Drive.

McCarthy said the sign is going up on Minnesota near the Raspberry Road exit and contractors have been working at night to disrupt traffic as little as possible.

The foundation is now in and McCarthy said the banging should be over.

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