BRIDGMAN, Mich. (AP) - A utility is planning $478 million in infrastructure improvements at Cook Nuclear Plant in southwestern Michigan and is asking for higher rates to help pay for it.

Fort Wayne, Indiana-based Indiana Michigan Power says the work at the plant along Lake Michigan would take place in 2019-2020.

The utility on Monday submitted its plans to the Michigan Public Service Commission for review. The "Michigan Plan " would also update poles and wires; add more new equipment to lines, substations and homes; and trim trees.

The utility is asking the Michigan Public Service Commission to review base rates for an overall increase of about $58.5 million, or nearly 19%. The company says the monthly increase for a typical residential customer who uses 1,000 kilowatt hours of energy per month would be $36.

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