(CBS) — Nik Wallenda’s daring walk over the Chicago River is now less than a week away and CBS 2’s Derrick Blakley reports production teams are already in-place, preparing for the Sunday evening spectacle.

The city has outlined what will and won’t be open during and event that’s expected to draw huge crowds.

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Wallenda will walk a wire spanning the river from Marina City to the Leo Burnett Building. Then, he’ll walk blindfolded from Marina City’s west tower to its east tower. The event is planned as a cable television spectacular.

Over the weekend, crews worked to suspend wires that will hold Discovery Channel cameras that will capture the event.

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Thousands are expected to gather along the river near the two skyscrapers to view the unprecedented event in person. The city announced these designated viewing areas for the public: Wacker Drive from Clark to Dearborn entering on Clark Street and Wacker Drive from Wabash to State, entering on Wabash.

Access to marina city plaza will be restricted as well and only residents and crew members for the event will be allowed there.

Starting overnight Thursday, set-up in a stage and production area will close a portion of Wacker Drive, as well as the Dearborn Street Bridge and State Street Bridge.

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More street closures will be in effect starting 5 p.m. Sunday night and ending at midnight. Wacker Drive will be closed from Clark to Wabash Street, State Street will be closed from Lake to Kinzie and Dearborn will be closed from Lake to Kinzie.