Pittsburgh's riverfront trail system is, by any fair measure, a genuine civic achievement. The city has stitched together miles of paved path along the Allegheny, Monongahela, and Ohio rivers, turning former industrial edges into some of the most used public space in the region. But a roughly one-mile gap in the Allegheny trail corridor, running between the North Shore and the borough of Millvale, has quietly undermined the network's promise for years. Cyclists heading north from the Point can't complete the loop. Millvale residents who want to ride into Downtown are forced onto the shoulder of Route 28, a fast, truck-heavy arterial with no shoulder to speak of.
The gap isn't a planning oversight. It's a land problem, and it's one that local trail advocates have been working to untangle for over a decade.
What the gap looks like on the ground
The Allegheny Riverfront Trail currently runs continuously from Point State Park through the North Shore, passing Heinz Field (now Acrisure Stadium) and running northeast before abruptly terminating near the 31st Street Bridge. On the other side of Millvale's northern edge, the trail picks back up and continues through Aspinwall and beyond toward the communities of Fox Chapel and Cheswick. The missing section in between sits on land owned by a combination of private industrial operators and the Pennsylvania Department of Transportation, which controls the Route 28 corridor embankment.
That ownership patchwork is the core obstacle. PennDOT isn't opposed to trail access in principle, but any path along the embankment would require structural review, drainage coordination, and multi-year engineering work. Industrial landowners along that stretch have been slow to negotiate easements. The result is a stalemate that has outlasted multiple city administrations.
Why Millvale cares so much
Millvale is a borough of about 3,600 people sitting on a narrow strip between the Allegheny River and the steep hillsides of the Millvale Incline area. It's a community that has invested seriously in cycling culture: the borough's own trail infrastructure includes the Millvale Community Bikeway, a separated cycling path that threads through the heart of the residential grid. The bikeway was built partly on the strength of the assumption that a trail connection to Downtown Pittsburgh would eventually arrive.
Without it, Millvale's investment is stranded. Residents can ride through their own borough safely, then face an abrupt dead-end at the river's edge. The bridge option, the 40th Street Bridge crossing into Lawrenceville, adds roughly two miles to any round trip to Downtown, which is manageable for recreational riders but impractical for commuters.
Who's working on the connection
The primary advocacy organization pushing for a solution is Bike Pittsburgh, the city's main cycling nonprofit. Bike Pittsburgh has maintained the Allegheny trail gap on its priority list for years and has facilitated conversations between PennDOT, the city's Department of Mobility and Infrastructure, and Millvale borough officials. Progress has been incremental. A 2023 feasibility study identified two potential alignment routes, one running along the riverbank requiring a floating dock section, and another cantilevered off the existing Route 28 retaining wall. Both carry significant cost estimates, with the retaining wall option coming in above $12 million in preliminary figures.
Federal infrastructure funding has changed the math slightly. The Infrastructure Investment and Jobs Act (IIJA) created new grant categories for active transportation projects, and Pennsylvania's share of that funding has opened doors for applications that would have been non-starters five years ago. Allegheny County and the City of Pittsburgh both submitted letters of support for a trail gap closure application in late 2024. Whether that application results in construction dollars is still unresolved.
The North Shore redevelopment angle
The trail gap's western anchor sits adjacent to the North Shore, a section of the city that has seen substantial investment in the last two decades but still carries significant unfinished business. The parcels closest to the 31st Street Bridge on the North Shore side include surface parking lots and a handful of underused light industrial properties. Any redevelopment of those parcels would, in theory, offer an opportunity to negotiate trail easements as part of a development agreement. That kind of condition has been used effectively elsewhere in Pittsburgh, most notably in the Strip District, where riverfront access was built into several major projects along the Monongahela.
City planners have flagged the trail easement question as a priority for any North Shore development proposal touching the river edge. Whether that language has binding force is another matter. Pittsburgh's track record on extracting trail commitments from developers is uneven.
What a completed connection would mean
Close the gap and the Allegheny trail becomes a genuinely continuous route from Downtown to the Freeport Road trail network and eventually to the regional Great Allegheny Passage, which terminates at Point State Park and continues to Cumberland, Maryland and Washington, DC. Pittsburgh's bike trail network has already grown into one of the more connected urban cycling systems in the region, but the Allegheny gap is the one that most undermines the whole system's usability.
For Millvale specifically, a trail connection opens the borough to the kind of foot-traffic and cycling-commuter economy that Lawrenceville has built over the past 15 years. Coffee shops, breweries, and small retailers in trail-adjacent communities across the country have documented measurable revenue increases tied to trail access. Millvale already has the bones of that scene. It's waiting on the path.
For now, the missing mile remains. Riders who know the workaround use it. Those who don't turn back. The gap is one of Pittsburgh's most solvable infrastructure problems, and also one of its most persistent ones. You can read about the city's broader river access infrastructure to understand how deeply the question of getting Pittsburghers to the water's edge runs across every part of the city.