Detours aplenty in Pittsburgh region, beginning today

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Commuters from the South Hills might want to linger over a second cup of coffee, or a third, before heading in this morning.

The inbound Liberty Tunnel was scheduled to close overnight, the start of a 15-day around-the-clock shutdown as the $18.8 million fourth phase of renovations continues. The posted detour takes traffic north on Route 51 to the Parkway West, where it will loop to the inbound side at the Banksville Road interchange.

That is likely to exacerbate the daily inbound backups on the parkway and on Banksville. Inbound traffic on West Liberty Avenue and Route 51 also is expected to be heavier than normal.

"It's going to impact traffic. There will be delays. Absolutely," said Steve Cowan, spokesman for the Pennsylvania Department of Transportation. Parkway drivers who know alternate routes to town should consider them, he said.

The Liberty Tunnel closure, scheduled to continue until early Aug. 30, is an early start to a weekend that will be crowded with construction and traffic restrictions.

The outbound tunnel will continue to close overnight starting at 10 p.m., reopening by 6 a.m. daily.

Elsewhere, Route 65 will have single-lane traffic in both directions between Elizabeth Avenue in Avalon and the McKees Rocks Bridge from 8 p.m. Friday through 6 a.m. Monday as a $6.3 million project to resurface five miles of the highway continues.

A $945,000 project to resurface nearly two miles of the Parkway West in Robinson will continue tonight. The outbound off-ramp to Route 22/30/60 will close from 10 p.m. today to 6 a.m. Friday for resurfacing, with traffic detoured to the Montour Run Road exit.

Traffic will be reduced to one lane on the parkway between Campbells Run Road and Route 22/30/60 from 10 p.m. Friday to 9 a.m. Saturday on the inbound side, and from midnight Friday to 9 a.m. Saturday outbound.

Work on the off-ramp at Route 22/30/60 will resume at 10 p.m. Saturday, with traffic again facing a detour until 9 a.m. Sunday. Lane restrictions are possible on the Boyce Road on-ramp to the inbound parkway. More work with traffic restrictions is possible on Monday night and on the following weekend.

Inbound Route 28 will be closed at the 40th Street Bridge tonight and Friday night. The closures will begin at 8 p.m. and continue until 5 a.m. the following mornings, with inbound traffic detoured across the 40th Street Bridge, to allow installation of an overhead sign structure. Outbound traffic faces periodic stoppages of up to 15 minutes in the same area.

Three streets adjacent to Carnegie Mellon University's campus will be closed to through traffic from 6 a.m. to 4 p.m. Sunday during move-in for about 1,400 first-year students: the 5100 block of Margaret Morrison Street, between Forbes Avenue and Tech Street; the 100 block of Tech Street, between Margaret Morrison Street and Schenley Drive; and the 1000 block of Morewood Avenue, between Fifth and Forbes avenues.

The 4700 block of Fifth Avenue, between Neville Street and Morewood Avenue, is expected to be congested and the university recommends that drivers avoid it.

There is no closure of the Squirrel Hill Tunnels this weekend, but overnight single-lane traffic begins at 9 p.m. inbound and 10 p.m. outbound as the $49.5 million rehabilitation project continues. The restriction will be lifted by 5 a.m. Friday and 10 a.m. Saturday and Sunday. The tentative schedule calls for two more full weekend closures, one in each direction, but dates have not been confirmed, Mr. Cowan said.

Transportation - neigh_west - neigh_north - neigh_south

Jon Schmitz: jschmitz@post-gazette.com or 412-263-1868. Visit the PG's transportation blog, The Roundabout, at www.post-gazette.com/Roundabout. Twitter: @pgtraffic.


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