DETROIT (WWJ) — DTE Energy says it will spend an extra $50 million this year — on top of its usual $600 million a year budget — to maintain and upgrade the electrical system in the Detroit area.

DTE officials said the work announced Tuesday is part of a larger investment to deliver more reliable service to customers throughout Southeast Michigan.

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DTE said the improvements will include replacing pole and pole top equipment, installing higher quality power lines, conducting additional tree trimming and doing some underground work.

The work, scheduled to be completed by Sept. 30, will take place at several locations, including: Detroit, Grosse Pointe Park, Chesterfield Township, Mount Clemens and New Baltimore.

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Specifically, DTE said customers will begin to see crews working in the following areas:

Detroit: Crews will be working in the area of Mack and Warren and Cadieux and Radnor; in the area between I-94 and Warren and Dickerson and Manistique; and in the area between I-94 and Warren and Drexel and Beaconsfield.

Grosse Pointe Park: Crews will be working in the area south of Kercheval between Manistique Street and Berkshire Road

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Chesterfield Township/Mount Clemens/New Baltimore: Crews will be working in the area around 23 Mile Road from the Salt River Golf Course to Gratiot.