Cap Urban Connector Construction Project Updates

The I-579 Cap Urban Connector Project (also known as the Cap Project) will consist of the construction of a new “cap” park structure spanning over a portion of I-579. The Cap Project is bounded by Washington Place, Centre Avenue, Chatham Street, Bigelow Boulevard and land to the north of Bigelow Boulevard.

HDR Engineering is the designer/engineer for this project. The City of Pittsburgh is holding the construction contract and the Sports and Exhibition Authority is coordinating with the City on the administration of the project. PennDOT is responsible for construction management and oversight, with sub-consultants supporting construction management and inspection. Upon completion, the City of Pittsburgh will own and maintain the Cap Park.

A Notice to Proceed for construction was issued on June 24, 2019. Construction completion is anticipated for November 2021.

Alternate Mobility Options

Important Note: Please be advised that Port Authority is currently operating on reduced service schedules as a result of the Covid-19 pandemic. Port Authority is expected to return to normal service and frequency levels for local and coverage bus lines as of Sunday, 5/17, as Covid-19 restrictions begin to ease in southwestern PA. For more information on how bus and light rail service are being impacted, visit their site here.

Motorists are encouraged to use transit, including Port Authority’s bus and light rail service, as their commuting choice to save money and reduce stress:

From the south, motorists are encouraged to use any of the following public transit options:
– The Blue Line or Red Line from South Hills Village Garage
– The Blue Line from Library Station
– Y1-Large Flyer from the Large Park and Ride in Jefferson Hills or the Century III Park and Ride in West Mifflin

From the east, motorists are encouraged to use any of the following public transit options:
– P7-McKeesport Flyer, 52L-Homeville Limited or 61C McKeesport from the Duquesne Park and Ride
– P1-East Busway All Stops, P2-East Busway Short from the Wilkinsburg Park and Ride
– P12-Holiday Park Flyer from the Alpine Village or Holiday Park park and rides
– P69-Trafford Flyer from the Forest Hills Park and Ride
– P76-Lincoln Highway from the North Versailles Park and Ride

Real-time applications are also available, via Port Authority’s True Time, the Transit app, Moovit,Google maps, and much more, to simplify your commute and provide you with the information to plan your trip on a day-to-day basis.

Want to learn more about how to park and ride? Learn more about Port Authority’s regulations, safety and security, schedule information, and park and ride facilities locations across Allegheny County.

CommuteInfo – Vanpool & Carpool Program Options

In addition to commuting via Port Authority’s buses or light rail lines, the Southwestern Pennsylvania Commission offers a CommuteInfo Program, focused on providing residents in the 10-county region with customizable information on vanpool, carpool, biking, and transit options to match your needs.

Current Construction News

Northbound I-579 Overnight Closures Begin on Tuesday Night, 5/26, and Will Extend Nightly Through Saturday, 5/30 ​

PennDOT District 11 is reminding motorists overnight closures for beam setting on I-579 in the City of Pittsburgh, Allegheny County, will begin in the northbound direction tonight, Tuesday night, May 26 weather permitting.

Northbound I-579 will close to traffic between the Center Avenue exit and the Bigelow Boulevard overpass from 7 p.m. to 6 a.m. nightly through Saturday, May 30. Crews from the Joseph B. Fay Company will conduct box beam installation over I-579 requiring a northbound closure and detour.

Posted Detours

To Continue on Northbound I-579:

  • From northbound I-579, take the PPG Arena/Centre Avenue off-ramp
  • Turn left onto Washington Place
  • Stay in the left lane and follow signs toward North 579/Veterans Bridge
  • Take the ramp to North 579/Veterans Bridge
  • End detour

Northbound I-579 to Bigelow Boulevard:

  • From northbound I-579, take the PPG Arena/Centre Avenue off-ramp
  • Turn left onto Washington Place
  • Stay in center lane and follow signs for East 380/Bigelow Boulevard
  • Take the ramp to East 380/Bigelow Boulevard
  • End detour

Alternate Detour From Westbound I-376 Parkway East:

  • Continue past the Boulevard of the Allies/Liberty Bridge (Exit 72B) off-ramp
  • Take the North 279 off-ramp (Exit 70C) toward Fort Duquesne Bridge/North Shore
  • Continue onto the Fort Duquesne Bridge
  • Stay in the right two lanes toward North 279
  • Continue onto northbound I-279 (Parkway North)
  • End detour

Alternate Detour From the Liberty Bridge:

  • From the Liberty Bridge, take the East 376 off-ramp toward Oakland/Monroeville/Boulevard of the Allies
  • At the end of the ramp, turn left onto the Boulevard of the Allies toward Downtown Pittsburgh
  • Follow the Boulevard of the Allies to Commonwealth Place
  • Turn left onto Commonwealth Place
  • Take the ramp to merge onto the Fort Duquesne Bridge
  • Continue onto the Fort Duquesne Bridge
  • Stay in the right two lanes toward North 279
  • Continue onto northbound I-279 (Parkway North)
  • End detour

Additionally, a single-lane restriction will occur on southbound I-579 each night of the northbound closures. Overnight closures will continue in both directions (not simultaneously) during the beam setting operations.  Additional details will be provided when the closures are scheduled.

I-579 Cap Urban Connector Project to Cause a Daily Northbound Lane Closure on Fullerton Street Beginning on Tuesday, 5/26, and Extending Through Friday, 6/26

The City of Pittsburgh Department of Mobility and Infrastructure advises that the Northbound right lane on Fullerton St. in between Centre Ave. and Wylie Ave. will be closed, daily, as needed, from 9AM-6PM starting today, May 26, 2020 through June 26, 2020.

The restriction is necessary to allow the contractor to stage the box beams that will be erected on the Abutment 2 (I-579 NB) side for the “CAP Project”.  On street parking will not be available during this timeframe. When travelling through the work area, use caution and expect delays.

The work is being performed by JB Fay Co., If you have any questions concerning this closure, please contact their Project Manager, Chuck Grabner, at 412-779-8354.

I-579 Long-term Ramp Closures Begin January 2020 and the Construction Timeline Has Extended As A Result of Covid-19 Pandemic Impact

Updated Notice as of 4/27/20: The closure and work began at 5:00 AM on Saturday, January 4, 2020 and will stay in place continuously for around 140 calendar days or around Saturday, May 23, 2020. Seventh & Bedford Avenue Ramps for outbound O1, O12, 77, 81, 82 & 83 routes, to the Veterans’ Bridge, the I-579 HOV and Bedford Avenue remain open at this time. The projected end date has been eliminated and remains open as a result of postponement of work mandated during the Covid-19 pandemic. Upon resumption of construction, when revised end dates are projected, the detour notice will be updated. As of Monday, April 27, 2020, PennDOT announced that work will be restarting on the Cap project on Tuesday, April 28, 2020 weather permitting. Normal highway and bridge construction projects in Pennsylvania remains paused as part of the Commonwealth’s efforts to mitigate the spread of COVID-19. This project is part of critical work that continues statewide addressing safety needs and work needed to eliminate roadway restrictions that could impede the ability for the movement of life sustaining goods and services.

PennDOT District 11 is announcing long-term ramp closures on the I-579 “Cap” Urban Connector project in the City of Pittsburgh, Allegheny County, will begin Saturday, January 4 weather permitting. Long-term closures will occur from 5 a.m. Saturday morning, January 4 for 140 consecutive days through May 23 on the following ramps:

  • Bedford Avenue ramp to southbound I-579
  • 7th Avenue ramp to southbound I-579

Crews will begin the construction of the last pier and columns, relocate the drainage to each ramp and reconstruct the pavement. To allow this work to occur traffic will be detoured. Posted Detours will include:

Bedford Avenue Ramp to Southbound I-579 (To Boulevard of the Allies/Eastbound I-376 – Cars)

  • From Bedford Avenue, take the ramp to 7th Avenue/Fort Pitt Bridge
  • Turn left onto Grant Street
  • Continue south on Grant Street
  • Take the ramp East I-376 toward Monroeville
  • End detour

Bedford Avenue Ramp to Southbound I-579 (To Boulevard of the Allies/Eastbound I-376 – Trucks)

  • From Bedford Avenue, turn left onto Crawford Street
  • Turn right onto Centre Avenue
  • Turn right onto 6th Avenue
  • Turn left onto Wood Street
  • Turn left onto the Boulevard of the Allies
  • Take the ramp to East 376 toward Monroeville
  • End detour

Bedford Avenue Ramp to Southbound I-579 (To Liberty Bridge – Cars)

  • From Bedford Avenue, take the ramp to 7th Avenue/Fort Pitt Bridge
  • Turn left onto Grant Street
  • Turn left onto 6th Avenue
  • 6th Avenue becomes the Crosstown Boulevard
  • Follow Crosstown Boulevard to the Liberty Bridge
  • End detour

Bedford Avenue Ramp to Southbound I-579 (To Liberty Bridge – Trucks)

  • From Bedford Avenue, turn left onto Crawford Street
  • Turn right onto Centre Avenue
  • Turn left onto 6th Avenue
  • 6th Avenue becomes the Crosstown Boulevard
  • Follow Crosstown Boulevard to the Liberty Bridge
  • End detour

7th Avenue Ramp to Southbound I-579 (To Boulevard of the Allies/Eastbound I-376 – Cars)

  • From 7th Avenue, take Grant Street southbound
  • Continue southbound on Grant Street
  • Take the ramp to East I-376 toward Monroeville
  • End detour

7th Avenue Ramp to Southbound I-579 (To Boulevard of the Allies/Eastbound I-376 – Trucks)

  • From 7th Avenue, take Grant Street southbound
  • Turn right onto 6th Avenue
  • Turn left onto Wood Street
  • Turn left onto the Boulevard of the Allies
  • Take the ramp to East 376 toward Monroeville
  • End detour

7th Avenue Ramp to Southbound I-579 (To Liberty Bridge)

  • From 7th Avenue, take Grant Street southbound
  • Turn left onto 6th Avenue
  • 6th Avenue becomes the Crosstown Boulevard
  • Follow Crosstown Boulevard to the Liberty Bridge
  • End detour

Additionally, in preparation for the Phase 5 construction, southbound I-579 will have a single-lane closure from 5 a.m. to 5 p.m. Saturday, January 4. Crews will relocate temporary barrier and conduct line striping operations. The 700-day closure of the ramp from northbound I-579 to 7th Avenue will continue through August 6, 2022.U

Long-Term Closure: Northbound I-579 Ramp to 7th Avenue Closure Begins September 6, 2019 and Will Continue Through Early August 2021

PennDOT District 11 is reminding motorists the long-term closure of the ramp that carries traffic from northbound I-579 to 7th Avenue in the City of Pittsburgh, Allegheny County begins Friday, September 6 weather permitting.

As part of the I-579 “Cap” Urban Connector project, the ramp from northbound I-579 to 7th Avenue will close to traffic at approximately 8 p.m. Friday, September 6 for 700 consecutive days through August 6, 2021. Crews will place concrete barriers at the ramp, southbound I-579 will be shifted into two 11-foot wide lanes, and line painting operations will occur through Saturday morning. Approximately 2,250 vehicles use the ramp each day. Posted detours include:

Northbound I-579 to 7th Avenue

  • From northbound I-579, take the PPG Arena/Centre Avenue off-ramp
  • Turn right onto Washington Place
  • Turn right onto Fifth Avenue
  • Turn right onto 6th Avenue
  • Turn right onto Grant Street
  • Follow Grant Street back to 7th Avenue
  • End detour

Motorists traveling from the east into downtown Pittsburgh should consider using the Second Avenue (Exit 71B) or Grant Street (Exit 71A) off-ramps from inbound (westbound) I-376 (Parkway East).

The long-term closure is required for pier construction within the limits of the ramp to support the bridge cap structure. A total of four piers will be constructed. The work includes deep foundation work consisting of 42 caissons drilled to a depth of 35 feet, 42 new concrete columns which will support four pier caps that range from 86 to 106 feet in length to support the 126 pre-stressed adjacent box beam bridge. Additionally, the contractor will stage equipment and material on the closed ramp for other project work including the bridge structure, highway lighting under the bridge, and the reconstruction of the ramp.

*(Last updated on 5/26/20)*


For more information on the Cap Project

To learn about additional details on the project including information on sustainability, funding, and public input please visit the Pittsburgh Sports & Exhibition Authority’s project page.

Interested in receiving regular weekly updates? Enroll in the email distribution list by sending Steve Cowan an email, at stcowan@pa.gov, with the subject line “Subscribe — I-579 Cap Project” and include your email address to be contacted at.


Project Press Releases

Current Press Release(s) Information & Links

PennDOT District 11 Press Release on 5/26/20: Northbound I-579 Overnight Closures Begin Tonight in Pittsburgh

Archived Press Release Information & Links

PennDOT District 11 Press Release on 5/15/20: I-579 Cap Overnight Lane Restrictions Continue Next Week in Pittsburgh

PennDOT District 11 Press Release on 5/8/20: I-579 Cap Overnight Lane Restrictions Continue Next Week in Pittsburgh

PennDOT District 11 Press Release on 4/27/20: I-579 Cap Project Resumes Tuesday in Pittsburgh

PennDOT District 11 Press Release for Week of March 9: Southbound I-579 Lane Restriction 3/14 – 3/15

PennDOT District 11 Press Release for Week of December 27: I-579 Long-Term Ramp Closure Back in Effect

Post-Gazette Article Week of December 9: Two I-579 Ramps Near PPG Paints Arena Reopen Temporarily

PennDOT District 11 Press Release for Week of October 28: I-579 Long-Term Ramp Closures Begin Monday, 11/4

PennDOT District 11 Press Release for Week of October 21:
Northbound I-579 Overnight Restrictions Continue Week of 10/21

PennDOT District 11 Press Release for Week of October 14: Northbound I-579 Lane Narrowing Begins Friday Night, 10/11

PennDOT District 11 Press Release for Week of September 30: Northbound I-579 Improvements Continue this Week

PennDOT District 11 Press Release for Week of September 23: Northbound I-579 Rolling Stoppages Underway

PennDOT District 11 Press Release for Week of September 16: Southbound I-579 Stoppages Underway

PennDOT Press Release for Week of September 9: I-579 Improvements Continue 9/11-9/12

PennDOT District 11 Press Release for Week of September 2: I-579 Overnight Closures Continue 9/3-9/6

PennDOT District 11 Press Release for Week of September 2: Ramp from Northbound I-579 to 7th Avenue to Close Long-Term on 9/6

PennDOT District 11 Press Release for Week of August 26: Multiple Closures & Detours Announced for 8/26-8/29

PennDOT Press Release In Effect between August 12-29: “Cap” Project Local Restrictions & Closures

City of Pittsburgh Press Release for Week of August 19: Chatham Street Nightly Closures

PennDOT District 11 Press Release for Week of August 19: Various Detours Posted for Overnight Improvements

PennDOT Press Release for Week of August 12: Overnight Improvements Causing I-579 Lane Closures

PennDOT Press Release for Week of August 5: Various Ramp Closures for Signage & Lighting Work

PennDOT District 11 Press Release from July 11: Announcement of Construction Beginning on 7/15

City of Pittsburgh Planning Commission Meeting on October 23, 2018: Final Land Development Plan Given Final Approval

City of Pittsburgh Planning Commission Meeting on December 5, 2017: Final Approval Given for the Design of Project

Public Meeting Held on June 27, 2016: Third Public Meeting Presenting the Preferred Park Layout


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