Project Status
Step 2 of 4
Design
Next Step: Construction
Public Comment
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Project Overview
County: Allegheny
Municipalities: Baldwin, West Mifflin, Whitehall Boroughs, City of Pittsburgh
State Route: 2046
Local Names: Streets Run Road, Baldwin Road
Project Type: Betterment
MPMS Number: 115070
Proposed Construction Start: Spring 2027
Proposed Construction End: Fall 2028
Last Updated: 02/17/2026
The Streets Run Road Improvement Project is located in Whitehall Borough, Baldwin Borough, West Mifflin Borough, and the City of Pittsburgh in Allegheny County. The project begins at the Streets Run Road and Brownsville Road intersection and extends east to the ramp to Route 885 (Mifflin Road). The total length of the project is approximately 4.6 miles.
The proposed scope of work includes milling and resurfacing of the asphalt roadway, minor bridge preservation work to 3 structures within the project limits, the installation of three retaining walls between the roadway and stream to preserve the failing slope, minor drainage improvements, guide rail updates, traffic signal work including a full replacement at the Brownsville Road intersection, signing updates, and updates to pavement markings and delineation.
Additional Project Information
Traffic through the construction project will mostly utilize short-term flagging operations to maintain one lane of alternating traffic during off-peak hours. The retaining wall construction will require long-term traffic restrictions at three different locations along Route 2046. For Wall Location 1, one lane of alternating traffic will be controlled by temporary traffic signals between Old Clairton Road and Spangler Street. For Wall Location 2, Route 2046 will be closed and detoured between Prospect Road and Brentwood Road, except for local traffic. Local traffic passing through the work area will only be able to travel in the westbound direction. The entire detour loop is approximately 9 miles and will utilize Route 2046 (Streets Run Road), Route 51 (Clairton Boulevard), Route 2040 (Lebanon Church Road), and Route 885 (Lebanon Road | Mifflin Road). For Wall Location 3, one lane of alternating traffic will be controlled by temporary traffic signals between the Route 885 on and off ramps. The required duration of each closure will be refined as the project progresses through design. Updated information will be provided as the project approaches construction.
Contact Information
Gary Castelucci, P.E.
Project Manager
412-294-1555
gcastelucc@pa.gov
Mark Young
Environmental Planning Manager
412-429-4858
markyoung@pa.gov
Steve Cowan
Press Officer
412-334-5436
stcowan@pa.gov
Accessibility
The project documents can be made available in alternative languages or formats if requested. If you need translation or interpretation services, have special needs, or have concerns that require individual attention, please contact the Project Manager listed above.
Title VI
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