Pittsburgh’s I-579 ‘cap’ will cause traffic disruptions | TribLIVE.com
Allegheny

Pittsburgh’s I-579 ‘cap’ will cause traffic disruptions

Bob Bauder
1623234_web1_Cap
Sports and Exhibition Authority
PennDOT and the city of Pittsburgh announced street and I-579 ramp closures starting Sept. 6 for construction of a $30 million “cap” over I-579 that will link Downtown to the Hill District through a public park.

More than 2,000 daily commuters accessing Downtown Pittsburgh via a ramp from northbound I-579 will have to find alternative routes for the next two years during construction of a “cap” linking Downtown and the Hill District.

PennDOT announced that a ramp leading from the Liberty Bridge to Seventh Avenue would close Friday for the construction of four piers that will help support the $30 million cap. Approximately 2,250 vehicles use the ramp daily. The ramp will be closed for 700 days, according to PennDOT.

Pittsburgh announced that the northbound lane of Chatham Street between Centre Avenue and Bigelow Boulevard would also close for the project, starting on Monday. It is scheduled to reopen in December.

The long-awaited cap project, funded by federal, state and local governments and charitable foundations, will feature a three-acre public park bordered by Bigelow Boulevard and Centre Avenue and Chatham Street and Washington Place. It’s scheduled for completion in 2022.

The park will feature paths for walkers and bicyclists from the neighborhood to Downtown, displays that tell the history of the Hill, artwork by local artists and stormwater mitigation, including rain gardens. The project includes upgrades to retaining walls, road reconstruction, drainage improvements, traffic signals, highway lighting and landscaping.

It will complement the Penguins’ plans for redevelopment of the adjoining 28-acre former Civic Arena site. Dubbed the Centre District, the $750 million project will be a residential, retail, office and entertainment complex. Construction is expected to begin this fall.

The cap foundation includes 42 caissons drilled to a depth of 35 feet and 42 concrete columns that will support what is essentially a concrete bridge over the highway, according to PennDOT.

Bob Bauder is a Tribune-Review staff writer. You can contact Bob at 412-765-2312, [email protected] or via Twitter .

TribLIVE commenting policy

You are solely responsible for your comments and by using TribLive.com you agree to our Terms of Service.

We moderate comments. Our goal is to provide substantive commentary for a general readership. By screening submissions, we provide a space where readers can share intelligent and informed commentary that enhances the quality of our news and information.

While most comments will be posted if they are on-topic and not abusive, moderating decisions are subjective. We will make them as carefully and consistently as we can. Because of the volume of reader comments, we cannot review individual moderation decisions with readers.

We value thoughtful comments representing a range of views that make their point quickly and politely. We make an effort to protect discussions from repeated comments either by the same reader or different readers

We follow the same standards for taste as the daily newspaper. A few things we won't tolerate: personal attacks, obscenity, vulgarity, profanity (including expletives and letters followed by dashes), commercial promotion, impersonations, incoherence, proselytizing and SHOUTING. Don't include URLs to Web sites.

We do not edit comments. They are either approved or deleted. We reserve the right to edit a comment that is quoted or excerpted in an article. In this case, we may fix spelling and punctuation.

We welcome strong opinions and criticism of our work, but we don't want comments to become bogged down with discussions of our policies and we will moderate accordingly.

We appreciate it when readers and people quoted in articles or blog posts point out errors of fact or emphasis and will investigate all assertions. But these suggestions should be sent via e-mail. To avoid distracting other readers, we won't publish comments that suggest a correction. Instead, corrections will be made in a blog post or in an article.