Metra says Union Pacific Railroad work will add 10 minutes to all midday and most weekend trains on the commuter rail agency’s Union Pacific North Line, Union Pacific West Line and Union Pacific Northwest Line in November.

Work on the Union Pacific North Line between the Ogilvie Transportation Center downtown and Kenosha, Wisconsin, will have the biggest impact on commuters, according to Metra, because it has few places where trains can cross between tracks. As a result, trains have to run on a single track beyond the work zone.

Union Pacific plans to replace about 1,500 ties along the line between the Evanston Main Street station and the Ravinia stop in Highland Park, as well as between Lake Forest and Waukegan, and crews also will be making repairs to a bridge south of the Ravenswood station on the city’s North Side.

On the Union Pacific West Line between Ogilvie and Elburn, workers will be replacing parts of the signal system, and track work and repairs on the Salt Creek bridge in Villa Park that began this month continue.

On the Union Pacific Northwest Lines’s McHenry branch, parts of the track and more than 11,000 ties are being replaced.