PennDOT video guides viewers through plans for the reconfigured I-70 / Route 51 interchange
PennDOT has released a video detailing plans to improve the Interstate 70 / Route 51 interchange while preparing for the possible start of construction on the project in 2022.
The project will widen the narrow lanes on a 1.7 mile segment of the highway at Sewickley while replacing the existing trefoil interchange with a diverging diamond format. The revised interchange will include extended entry and exit ramps for motorists traveling between the two highways and will eliminate stop signs at these access points.
As noted on the project’s website, the Divergent Diamond Interchange (DDI) will have lanes of traffic on Route 51 that switch – divergent – to the opposite side of the road and vice versa, through a pair of signposted intersections. This will allow drivers to turn left from Route 51 onto I-70 without crossing oncoming traffic.
A pair of bridges will carry Route 51 over the highway, replacing the existing single span.
There are approximately 130 DDIs across the country, including one nearby in Washington County, where the diverging lanes of Route 19 intersect under I-70.
The video for project I-70/51 is just over 6 minutes long and includes animated segments showing how traffic will move through the reconfigured interchange.
Additional segments show other aspects of the project: an improved stretch of I-70, with a pair of 12-foot-wide lanes in each direction, 12-foot-wide shoulders, and a 10-foot median. large ; increased clearance under a Wheeling & Lake Erie railway bridge that crosses I-70; relocation of Finley Road to form a four-lane intersection with Highways 981 and 51; a new left turn lane on Route 51 at Ridge Road.
Visit i-70projects.com to view a map of the Interstate Corridor. Click the blue icon at the Route 51 intersection to view the I-70/51 video, a detailed project map, and other information on planned improvements.
The map on the main web page can be used to check the status of other PennDOT projects spaced along I-70 between New Stanton and the West Virginia border.
The I-70/51 project is in the final design phase, with construction tentatively scheduled for 2022-2025. Its price is estimated at $ 135 million.