The North Shore section of the TRHT is a 7.2 mile one-way trail (14.4 miles out-and-back) that lead's point to point from north of the 40th St Bridge parking lot to 2099 Westhall, St. Pittsburgh. Parking can be found at both ends of the trail.
Very easy flat hike with amazing views of downtown Pittsburgh, the Allegheny River, and Ohio River. You'll also pass right by Heinz Field, PNC Stadium, Carnegie Science Museum, and various marinas.
Along the way there's a handicap accessible bridge over to the Herrs Island Trail with a great view of the Allegheny River looking towards downtown as well.
The trailhead listed on this GPS map is inaccessible from the road, so if you want to explore this area, you'll need to stay on the trail heading northeast beyond the 40th street bridge. The trail technically ends somewhere along this gravel trail, but there's no distinguished marker. If you follow the trail for another couple of miles, you'll make it all the way to the Aspinwall Riverfront Park.
Parking: The parking marker will bring you to the Millvale entrance to the trail and the main trailhead can be found at the parking lot.