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Donald A. Hall Estate Collection

Timber Truss Highway Bridge in Mountain Canyon (1927)

A heavy wooden truss road bridge crossing a creek in a rugged, steep mountain canyon flanked by brush-covered slopes. — Timber Truss Highway Bridge in Mountain Canyon (1927) · Donald A. Hall Estate Collection

Documenting civil engineering and infrastructure during his 1927 mountain excursions, Donald A. Hall Sr. photographed this sturdy timber truss highway bridge spanning a mountain creek in a rugged California canyon.