MARSHALL TWP, Allegheny County — Interstate 79 will be reduced to a single lane in each direction from 7 p.m. Saturday through 9 a.m. Sunday morning in these areas:

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[naviga:li] Northbound — Between the Route 910/Wexford interchange and the Route 19 Cranberry off-ramp.[/naviga:li]

[naviga:li] Southbound — Between the Butler County line and the Route 19 on-ramp.[/naviga:li]

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Crews will do concrete patching.