In the City of Greenville, a community of nearly 9,000 residents located northeast of Grand Rapids, a unique challenge arose to complete the Fred Meijer Flat River Trail—a 6-mile non-motorized path that connects the downtown area, six parks, and the high school, with a scenic 3-mile stretch along the Flat River. The missing piece of this trail loop was a safe and accessible way to cross M-57 on the east end of town.
Greenville identified a handicap-accessible tunnel as the ideal solution. Positioned under the busy intersection of M-57 and Maplewood Street, the tunnel would offer a safe passage for pedestrians and cyclists while maintaining the flow of traffic above.
The design featured pre-cast concrete tunnel sections complemented by natural stone finishes and cut-stone traffic barriers to keep pedestrians safe. Vertical retaining walls minimize the tunnel’s footprint, and the approach walls were adorned with hand-made tiles created by local artists, telling the story of the city’s history. The tunnel is well-lit for safety and equipped with electronic aluminum gates to close during the night, with panic buttons for any needed emergency access.
The construction was carefully staged in two sections to maintain traffic flow on M-57, and the design team re-routed several pipelines while adding a small detention pond to the drainage system. Today, the tunnel stands as both a functional piece of infrastructure and a stunning work of art, improving safety and providing an essential connection for the community.
“The tunnel is beautiful and very useful. M-57 is a very dangerous street to cross even at the light. Hats off to the city of Greenville and all the participants in creating such a beautiful place, highlighting our city with art. Great job on the tunnel by everyone!”- Norice Rasmussen, Resident (via The Daily News)