This wooden covered bridge built in 1916 spans Abiqua Creek in rural Silverton, Oregon. The 84-foot-long structure derived its name during prohibition when it was a meeting place for bootleggers and moonshiners. Listed on the National Register of Historic Places, it is the state's oldest covered bridge (and the only one still carrying traffic in Marion County!). 

In 2011 Arciform was contacted to restore the Gallon House Bridge to its former glory, including complete roof reconstruction, structural replacement of support members, and detailed exterior refinishing. The team at Arciform worked diligently to ensure that all structural modifications preserved the historical integrity of the bridge and were sound enough to prevent significant future deterioration

The restoration included removing the shake-style roof structure and rebuilding it true to it’s original form with resawn timber. It took a full summer (4 months) to complete. With the Arciform crew camping in the area and local farmers helping out by lending tractors and hands, this was a true community project.

Arciform was careful to follow the US Fish & Wildlife endangered species program by not interrupting migratory passage of endangered birds that might use the roof structure and by protecting the water way beneath the bridge.

With a bridge this large, protecting the water way is quite intensive. A full understructure was built and dozens of Biobags (mesh bags filled with wood chips) were used to protect Abiqua Creek from any construction debris.