Among the 21st Street Underpass alternatives, Alternative 2 proposes a $600,000–$800,000 package of minor improvements: an overheight vehicle detection and warning system on approaches, drainage inlet additions, abutment slope paving, striping, and pedestrian/vehicle lighting under the bridge. Public survey results ranked this as the top alternative, and it aligns with BNSF’s preference to minimize rail structure work while addressing frequent bridge strikes and poor pedestrian conditions. The study notes that adopting the plan will allow the City to pursue outside funding and later seek Council approval to fund a selected alternative as a CIP project. Given its relatively low cost, high safety benefit, and public/BNSF support, Alternative 2 is a strong candidate for near-term implementation—implying upcoming procurements for ITS/warning systems, lighting, drainage, and small civil works once funding is identified and the City moves from planning to design and construction.

Work would occur mostly within existing right-of-way and does not require structural bridge modifica...