The northbound Bronx River Parkway will be closed from the Sprain Brook Parkway, with some local access farther north, from 9:30 a.m. to 3:30 p.m. weekdays, starting Monday to allow work on the Crane Road Bridge project in Scarsdale.

The closures are expected to continue through July 19, except for the long Fourth of July weekend. There will be no closures from noon July 3 until 9:30 a.m. July 9, according to a news release from the Westchester County Department of Public Works.

During the hours when the northbound lanes are closed, all traffic will be diverted onto the Sprain Brook Parkway and then Central Park Avenue (Route 100) all the way to White Plains.

Local traffic will be able to enter the northbound Bronx River Parkway at Paxton Avenue, Elm Street, Scarsdale Road, Thompson Street and Leewood Drive. Cars entering at these points will be diverted at Harney Road to Scarsdale Avenue and East Parkway, re-entering the parkway at Crane Road.

The northbound Bronx River Parkway will be open to traffic at Crane Road and all points north.

A new span is being built next to 88-year-old, 464-foot-long Crane Road Bridge with wider lanes and shoulders. The new bridge will also feature a northbound deceleration lane to Crane Road, sidewalks leading to the Bronx River Parkway reservation and a new southbound Metro-North Railroad platform.

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The new bridge's design will be similar to the current span's rustic stone work and concrete piers, according to the county. During morning and evening rush hours, Crane Road Bridge is used by about 3,000 drivers, with total daily car crossings estimated at 30,000 vehicles, according to county officials.

Replacing the bridge, which runs over the parkway and Metro-North train tracks, is the county's largest-ever parkway construction project, according to the county.