The Washington County Historic Courthouse in Stillwater, Minnesota, USA, was constructed between 1867 and 1870. During condition assessment significant deflection of the courtroom ceiling and main timber roof trusses was observed. When attic insulation was removed to expose the roof trusses’ bottom chords, the bottom chord of one of the four trusses was observed to be completely fractured at the tension splice. An emergency analysis, shoring, and stabilization was undertaken. Wood samples were examined to identify the timber species as Eastern White Pine. The point cloud generated from a laser scan was used to understand the complex configuration of the drum and dome framing above the trusses, confirm the magnitude of the deflection, track the load path down to the trusses, and develop a structural analysis model. Structural stabilization was designed to be compatible with the existing system. Steel rods, anchored at the ends of the fractured bottom chord of the truss, were draped along the sides and braced below the bottom chord and tensioned using turnbuckles, pulling the fractured chord slightly together and simultaneously applying upward force to lift it, reestablishing a tension load path. Following tensioning, a side plate and channel were bolted in place to reconnect the chord at the splice. Following emergency stabilization, a thorough investigation of the causes of the deflection and structural analysis of all timber roof trusses was undertaken. The tension splices were found to be under designed and showing signs of imminent failure. Repairs were designed and implemented to restore the full capacity of the timber members.