Hamilton’s century-old Black Street Bridge could soon get a car-free second act, with a massive regional transportation project proposing a new river crossing for drivers and a quieter future for walkers, bicyclists and shuttles.
The proposed change is part of North Hamilton Crossing, a roughly $150 million project intended to reconnect the Butler County city across the Great Miami River. A Cincinnati Enquirer report says the long-range effort could take about 20 years to fully complete.
The city’s plan calls for a new bridge over the river, a railroad overpass and an east-west route linking northwest Hamilton with U.S. 127, State Route 4 and State Route 129. According to the City of Hamilton, the project is designed to reduce congestion while improving travel by car, transit, bicycle and foot.
New River Crossing Would Take Pressure Off Black Street
The Black Street Bridge is the key piece of the proposed switch. The Federal Highway Administration says North Hamilton Crossing would include a new river bridge and convert the existing two-lane Black Street span into a multi-use pedestrian and bicycle path.
That would preserve one of Hamilton’s most distinctive pieces of infrastructure while removing much of the traffic that currently squeezes across its narrow roadway and sidewalks. The bridge was built in 1922, and HistoricBridges.org describes it as a seven-span, roughly 708-foot concrete arch structure with unusual architectural detailing and little alteration.
Environmental Review Is Still Underway
The project has not reached the finish line, however. A federal permitting dashboard lists the North Hamilton Crossing environmental assessment as in progress, with the review process targeted for completion next Friday.
Early construction could begin before the full corridor is finished. The Dayton Daily News reported that roundabout work could start in 2026, with the bulk of that work expected in 2027, while the river-crossing phase alone could cost about $33 million.
Hamilton’s population was estimated at nearly 64,000 in 2024, according to U.S. Census Bureau data. A safer, more direct connection between the city’s two sides could matter not only to commuters, but also to people walking or biking between downtown, riverfront trails and the growing Spooky Nook area.
For now, drivers will keep using Black Street while the new crossing moves through design, environmental review and funding decisions. If the broader project comes together, Hamilton’s historic bridge could trade traffic jams for trail users — a long-term transformation rather than an overnight road closure.
