Phase: Construction
Location: Westmoreland County
Anticipated cost: $88.7 million
2025 Finley Road Detour Begins July 14
Beginning on Monday, July 14 and remaining through early spring 2026, closures will be in place at the eastbound ramps of the Arnold City Interchange (Exit 44). Traffic will be redirected to the I-70/Route 201 Interchange (westbound) or I-70/Route 51 Interchange (eastbound). All work depends on weather and operations.
Detours:
- Eastbound I-70 off-ramp to Arnold City (Exit 44)
- Route 51
- Route 201 (Rostraver Road)
- Route 3011 (Finley Road)
- Arnold City on-ramp to eastbound Interstate 70
- Route 3011 (Finley Road)
- Route 201 (Rostraver Road)
- Finley Road (Route 3011) between Ridge Road and the eastbound I-70 interchange
- Route 3011 (Finley Road)
- Route 201 (Rostraver Road)
- Interstate 70
- Route 51
- Indian Hill Road Bridge over I-70 to eastbound I-70
- Route 3011 (Indian Hill Road)
- Route 201 (Rostraver Road)
- Interstate 70
- An additional truck detour will be in place to direct truck traffic to use the Belle Vernon Interchange
- Interstate 70 to Route 906/Belle Vernon/Monessen (Exit 41)
- Route 906 (Main Street)
- Route 201(Rostraver Road)
- Route 3011 (Finley Road)
Detour Duration: July 14, 2025 – Early Spring 2026
Closure Purpose: Construct the interchange roundabout and retaining wall between the interchange and railroad.
Click here to enlarge image
Construction began in April 2025 and is expected to continue through 2028. Eastbound ramps and Finley Road will close at the interchange for approximately five months in 2025 to build a mechanically stabilized earth (MSE) wall and roundabout. Detours will follow I-70 to the Route 201 and Route 51 interchanges. While Finley Road is raised, a temporary driveway will be in place east of the interchange to provide access for homes and properties for about one month.
More details about anticipated construction phasing are included below.
As construction continues, track construction progress with updated construction photos.
Project Overview
This project connects Route 3011, Finley Road, Indian Hill Road, and Daugherty Lane to I-70, and improve safety and traffic operations at the interchange and along I-70. The existing Exit 43 interchange (Donora - Fayette City) will be renamed Donora – Rostraver Road, and the existing Exit 44 interchange (Arnold City) will be renamed Fayette City - Finley Road. The project area is approximately 1.75 miles long, from the I-70 bridge over the Wheeling and Lake Erie Railroad to 1.37 miles east of the Arnold City Interchange in Rostraver Township. Planned construction through 2028 will include:
- Full depth pavement replacement
- Drainage improvements
- Stormwater management
- Replacement of overpass structures
- Grade improvements to provide adequate clearance
Arnold City Interchange Improvements
- Interchange geometry will be improved to provide adequate ramp lengths for traffic to safely exit from and merge onto I-70
- The grades on the ramps will be reduced to meet current standards
- A roundabout will combine the eastbound ramps/Indian Hill Road intersection and the Indian Hill/Finley Road intersections
Indian Hill Road Bridge over I-70
- Replaced to provide adequate width and vertical clearance (16’ 6” minimum) for I-70
Crawford Lane Bridge over I-70
- Replaced to provide adequate width and vertical clearance (16’ 6” minimum) for I-70
- Location shifted to east to allow new bridge to be constructed while existing bridge remains in use
See below for additional project information:
Project Mapping
View project mapping to learn more details about this area.
PennDOT Contact
Name:
Melissa Maczko
Organization:
PennDOT District 12
Title:
Press Officer
Phone:
724-415-3748
Email:
mmaczko@pa.gov