BELOIT—Sections of I-39/90 and I-43 near the Beloit interchange will be closed from 9 p.m. Monday to 5 a.m. Tuesday as workers put the last beam in place for the I-43 flyover ramp.

Traffic on I-39/90 southbound will use the current interchange ramps at Exit 185 to bypass the closure. One lane will be closed on I-39/90 northbound. I-43 and State Highway 81 traffic should follow the message boards along the marked detour route during the overnight closures.

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