DAO provided architectural design to WSP USA and the Port of Kalama for the 142’ long pedestrian bridge spanning over the BNSF railroad tracks in Kalama, Washington. The replacement overcrossing is an important link from Kalama’s downtown to the city’s Port district along the Columbia River in Southwest Washington’s Cowlitz County, serving as both gateway and connector at this historically significant junction.

The new bridge replaces an aging concrete beam assembly and will provide a safer and more durable crossing extending over both the rail tracks and adjacent frontage road. The 25’ high span is elevated above its surroundings by supporting steel and woven wire mesh stair towers, coupled with glazed elevator hoistways. The towers and Pratt truss bridge both prioritize a spare and straightforward aesthetic, emphasizing the efficiency and authenticity of their engineering.

The structure’s primary material is weathering steel, selected for its appearance and maintenance-free finish, coupled with cost effectiveness and constructability. Corrugated metal roofs echo the vernacular of nearby Port buildings and provide shelter from inclement weather, while fitting within the surrounding industrial context. Perforated metal artwork panels located on each tower depict imagery and capture the spirit of Kalama’s history. Light fixtures and fritted glass provide additional opportunities to reference the location’s maritime roots and the relationship of the town, port, and rail transportation to the Columbia River.