Carnahan Road to Close for Six Weeks

The Pittsburgh Department of Mobility and Infrastructure will close a stretch of Carnahan Road in Banksville while a retaining wall is built.

Updated on Nov. 3, 2026 in Construction

Freshly poured concrete retaining wall rising along a wooded hillside beside an empty road, under overcast morning light, marking a Banksville construction site. — The Pittsburgh Department of Mobility and Infrastructure will close Carnahan Road between Younger and Banksville avenues for about six weeks starting November 2026 while a 100-foot retaining wall is built. AI Illustration. Upload story photo >

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Would you accept a six-week road closure for a long-lasting infrastructure fix?

Beginning in November 2026, the Pittsburgh Department of Mobility and Infrastructure will close Carnahan Road between Younger Avenue and Banksville Avenue for approximately six weeks. Younger Avenue to Crane Avenue will be restricted to local traffic during the closure.

Why it matters

The closure allows contractor A. Merante Contracting to build a 100-foot retaining wall that will stabilize the nearby hillside. The project is intended to ensure long-term roadway access for residents of Pittsburgh's Banksville neighborhood.

The closure runs approximately six weeks along a segment of Carnahan Road about one half-mile from Younger Avenue to Crane Avenue, where a 100-foot retaining wall is being built. The exact start date within November 2026 and reopening date are not yet specified.

The players

Pittsburgh Department of Mobility and Infrastructure

The city department responsible for managing Pittsburgh's streets, transportation, and infrastructure projects, including this closure.

A. Merante Contracting

A West Mifflin-based contracting firm building the retaining wall on Carnahan Road.

The details

Workers will construct a 100-foot retaining wall to stabilize the hillside beside Carnahan Road, which serves Banksville Elementary School and connects to Banksville Road, a major South Hills route. Drivers will be detoured via Crane Avenue and Banksville Road in either direction.

Early November 2026: Carnahan Road closure between Younger Avenue and Banksville Avenue is scheduled to begin.
Approximately six weeks after the start: The closure is expected to end.

Construction Context

Projects like this Carnahan Road wall reflect Pittsburgh's recurring reliance on retaining walls to shore up hillside roadways in the hilly South Hills. Such work typically requires temporary full closures rather than lane restrictions because of the limited space beside steep slopes.

Drivers using Carnahan Road should plan for a detour via Crane Avenue and Banksville Road during the approximately six-week closure. Residents and parents of Banksville Elementary School students should allow extra travel time while the closure is in effect.

The takeaway

Short-term road closures for retaining-wall work are a practical trade-off that secures long-term access to hillside roadways. Commuters can reduce delays by checking detour routes before the closure begins in November 2026.