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Route 28 Highland Park Interchange Project​

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Project Overview

The purpose of the project is to address the existing bottleneck and congested traffic flow on Route 28 (Allegheny Valley Expressway) and other operational and safety issues within the Route 28/Highland Park Bridge/Freeport Road Interchange. 

The project involves reconstruction of Route 28 between North Canal Street/Kittanning Pike and extending north/east to the Delafield Avenue Interchange, the reestablishment of two travel lanes on Route 28 in each direction through the interchange, and construction of improved acceleration and deceleration ramps. Also included in the project is the reconstruction of the Route 28 ramps with the Highland Park Bridge and Freeport Road, bridge/wall preservation work, bridge, and roadway widening, sound barriers, and miscellaneous operational and safety improvements. 

The Highland Park Bridge river crossing and the Riverfront 47 Development are not part of this project


Project Updates

11-15-21

PennDOT District 11 is announcing overnight closures on the northbound Route 28 ramp to northbound Route 8 in Etna Borough, Allegheny County, will begin tonight, Monday night, November 15 weather permitting.

The ramp that carries traffic from northbound Route 28 to northbound Route 8 will close to traffic weeknights from 10 p.m. to 5 a.m. through Friday night, November 26. Crews from Boschung America will conduct anti-icing system maintenance work. Ramp traffic will be detoured.

Posted Detour

  • From northbound Route 28, take the Exit 5A ramp to South Route 8/RD Fleming Bridge/Sharpsburg (62nd Street Bridge)

  • At the stop sign, turn left onto Bridge Street

  • Turn right onto Butler Street

  • Turn right onto Kittanning Street

  • Follow to Route 8

  • End detour

10-26-21

PennDOT District 11 is announcing an overnight traffic shift on southbound Route 28 in O'Hara Township, Allegheny County, will occur Wednesday night, October 27 weather permitting.

Southbound Route 28 traffic will be shifted from the right lane to the left lane (the on-ramp from the Highland Park Bridge) from 7 p.m. Wednesday night through 5 a.m. Thursday morning. Crews will stage and erect bridge beams from the closed right hand-lane of southbound Route 28 on the structure over the 23rd Street Extension. The on-ramp from the Highland Park Bridge to southbound Route 28 will be placed in a stop condition.

Please use caution when traveling through the work zone.


8-5-21

PennDOT District 11 is announcing a single-lane restriction on the ramp that carries the traffic from the Highland Park Bridge to southbound Route 28 in Sharpsburg Borough, Allegheny County, will begin Thursday, August 5 weather permitting.

A single-lane restriction will occur on the ramp from the Highland Park Bridge to southbound Route 28 weekdays from 9 a.m. to 3 p.m. through Thursday, August 12. The ramp will remain open to traffic. Crews will conduct paint containment removal work. No work will occur on the weekend.

7-23-21

PennDOT District 11 is announcing the permanent closure of the ramp from northbound Freeport Road to the Highland Park Bridge in Sharpsburg Borough, Allegheny County will be implemented Monday morning, July 26 weather permitting.

Beginning at approximately 9 a.m. on Monday, the ramp from northbound Freeport Road to the Highland Park Bridge will permanently close to traffic.  The closed ramp will be utilized as a pedestrian detour while the structure over Freeport Road is reconstructed. Future phases of construction to the Freeport Road/Highland Park Bridge interchange will accommodate traffic in both directions of Freeport Road. In the meantime, northbound Freeport Road traffic to the Highland Park Bridge will be detoured.

Posted Detour

Northbound Freeport Road to the Highland Park Bridge

  • From northbound Freeport Road, continue past the permanently closed ramp

  • Turn left onto Fox Chapel Road

  • Turn left onto the ramp to southbound Route 28 toward Pittsburgh

  • Take the left-hand ramp to South 8 Highland Park Bridge/Aspinwall (Exit 6)

  • Follow the ramp to the Highland Park Bridge

  • End detour

Additionally, single-lane restrictions will occur in both directions of Freeport Road at the overhead structure at the Highland Park Bridge. Crews will conduct reconstruction work on the structure, ramp reconstruction work, and utility work.

7-7-21

PennDOT District 11 is announcing single-lane restrictions on Route 28 in various municipalities in Allegheny County, will occur this weekend, Friday night through Monday morning, July 9-12 weather permitting.

A single-lane restriction will occur on Route 28 in each direction between the Millvale (Exit 3B) interchange and the Highland Park Bridge from 7 p.m. Friday night continuously through 5 a.m. Monday morning as crews conduct concrete patching and repairs. 

6-15-21

PennDOT District 11 is announcing the long-term closure of the ramp from northbound Route 28 to the Highland Park Bridge in Sharpsburg Borough, Allegheny County, will begin Monday morning, June 21 weather permitting.

Beginning at approximately 3 a.m. on Monday, the ramp from northbound Route 28 to the Highland Park Bridge/Aspinwall (Exit 6) will close to traffic for 83 consecutive days.  Crews will conduct expansion dam and bearing replacement, concrete repairs, blasting and painting operations, drainage improvements, steel repairs, and an epoxy overlay on the deck. Ramp traffic will be detoured.

Posted Detour

  • From northbound Route 28, take the RD Fleming Bridge/Sharpsburg (Exit 5A) off-ramp
  • Continue straight at the stop sign
  • Bear right onto North Main Street (Route 1001)
  • North Main Street becomes Main Street
  • Main Street becomes Freeport Road
  • Take the ramp to the Highland Park Bridge
  • End detour

Alternate Detour

  • From northbound Route 28, continue past the closed ramp
  • Take the Fox Chapel Road/Waterworks Drive/Freeport Road (Exit 8) off-ramp
  • Bear left toward Fox Chapel Road
  • At the stop sign, turn left onto Fox Chapel Road
  • Turn left onto the ramp to southbound Route 28
  • From southbound Route 28 take the left-hand off-ramp to South 8/Highland Park Bridge/Aspinwall (Exit 6)
  • End detour

6-11-21

PennDOT District 11 is announcing a daylight lane restriction on northbound Route 28 in Aspinwall Borough, Allegheny County, will begin Monday, June 14 weather permitting.

A single-lane restriction will occur as needed on northbound Route 28 weekdays from 9 a.m. to 3 p.m. through Wednesday, July 14 between the Highland Park Bridge and Delafield Avenue (Exit 7). Crews will conduct demolition work on the bridge over Lexington and Delafield Avenues.  

3-30-20

In March 2020 the project's public involvement period was completed. The project is scheduled to let later this summer and work is anticipated to begin in the fall of 2020. 

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