Preserving History While Building for the Future: Solsville Bridge Rehabilitation

Infrastructure is a part of everyday life. It helps people get where they need to go, supports local businesses, and keeps communities connected. While new construction projects often get the most attention, maintaining and improving existing infrastructure is just as important. A recent bridge project in the Town of Madison, New York, shows how communities can preserve historic structures while making them safer and more reliable for the future.

Built in 1889, the stone arch bridge in the hamlet of Solsville has been an important part of the community for well over a century. Because of its history and character, the bridge is eligible for inclusion on the National Register of Historic Places. Instead of replacing it entirely, Madison County chose to preserve and rehabilitate the bridge, allowing it to continue serving the community while keeping its historic appearance intact.

Although the bridge was still in fairly good shape for its age, repairs were needed to keep up with the effects of time and weather. Some of the stonework had cracked or fallen away, and sections of the walls supporting the bridge were beginning to lean or deteriorate. One challenge was especially unique: part of one wall was connected to the foundation of an adjacent dwelling, making repairs more complicated.

To restore the bridge, the project team used a combination of repair methods to strengthen the structure while preserving as much of the original stonework as possible. Damaged areas were repaired, unstable sections were reinforced, and some walls that could not be saved were reconstructed. New concrete walls were constructed to the northeast and southwest, supported on a single row of drilled piles, and anchored with tie-backs into the soil behind to support their height. Drilled piles were used for this project, as opposed to driven piles to minimize vibration during installation and better protect the arch. For the wall attached to the nearby dwelling, a new wall was installed in front of the existing one to provide support without impacting the structure. This wall was also anchored with tie-backs into the soil behind, and incorporated an internal waler support to better carry the forces of the wall. A stone pattern was imprinted on the face of the three new walls using a concrete form-liner to better match the look and feel of the stone arch.

The project also improved the bridge for modern use. The old bridge had narrow shoulders, which made maintenance and snow removal more difficult. A new bridge deck was designed to provide additional space while reducing pressure on the historic stone walls below. This approach helps protect the bridge and extend its lifespan.

Improved protection against storm events was another important part of the project. During periods of heavy rain or flooding, fast-moving water can erode the streambed beneath bridges. On-going erosion at the bridge had partially exposed the timber mat foundation supporting the arch. To help protect the arch foundation, protective stone was installed beneath the structure to improve stability and reduce erosion.

The Solsville Bridge rehabilitation is a good example why investing in existing infrastructure matters. By preserving a historic bridge while improving its safety and functionality, the project helps maintain an important piece of the community’s history while ensuring it can continue to serve residents for years to come. For more information, contact Bryan Tremblay, P.E..