Work on I-79 kicks on in the north and south

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A mishmash of overnight and weekend traffic restrictions will begin this week on Interstate 79 in Marshall, and three other I-79 projects in Allegheny and Butler counties will continue.

A $7.7 million project will resurface nearly 3.5 miles of the highway between Route 910-Wexford and the Butler County line. Starting today, a variety of restrictions will be in effect, continuing until the project is completed in November.

On the northbound side, traffic will be limited to a single lane from 7 p.m. Monday through Thursday until 6 a.m. the following day; from 10 p.m. Fridays until 9 a.m. Saturdays; and from 7 p.m. Saturdays until 9 a.m. Sundays. Two lanes will be open from 9 a.m. to 7 p.m. Saturdays and Sundays. All lanes will be open at other times.

On the southbound side, traffic will be restricted to a single lane starting at 7 p.m. Mondays through Thursdays until 6 a.m. the next day and from 7 p.m. Fridays and Saturdays until 9 a.m. the next day. Two lanes will be open from 9 a.m. to 7 p.m. Saturdays and 9 a.m. to noon on Sundays. All lanes will be open at other times.

Ramp closures and detours will occur at times to be announced.

Work hours on a second I-79 project in Allegheny County, a $2.8 million resurfacing of the highway between Bridgeville and Crafton, will expand slightly, Pennsylvania Department of Transportation spokesman Steve Cowan said.

Closure of one lane in both directions is possible from 7 to 8 p.m. weeknights, followed by two-lane closures from 8 p.m. to 5 a.m. and a single-lane closure from 5 to 6 a.m.

On weekends, the contractor, Lane Construction, is permitted to close one lane from 6 a.m. to 10 p.m. and two lanes after 10 p.m. Mr. Cowan said discussions are underway to modify that schedule, but no decision had been made as of late last week.

The project will resurface about 4.8 miles of I-79.

In Butler County, a two-year, $14 million bridge replacement project continues at the I-79 interchange with Route 422 in Muddycreek.

A crossover for southbound traffic has been removed, but single-lane traffic in both directions will continue into fall, when the project is expected to be complete.

A $1.7 million project to repair centerline and edge pavement joints on I-79 throughout much of Butler County will resume this week. Crews have completed pavement replacement along the centerline and will begin work on the edges, possibly on Friday, on the southbound side, PennDOT spokeswoman Deborah Casadei said.

Two 1-mile-long sections of the highway will be fully milled and repaved later in the project, she said.

The work has caused lane closures during off-peak daylight hours with some significant backups.

Ms. Casadei said the edge work should be less disruptive because a full lane will remain open and traffic won’t be pushed to the shoulders.


Jon Schmitz: jschmitz@post-gazette.com, 412-263-1868 or on Twitter @pgtraffic.

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