The plan primarily focuses on replacing the bridge deck and making necessary safety and structural improvements. • Deck and Floor Beam Replacement: The existing deck and all 83 transverse floor beam fracture-critical members will be removed. These will be replaced with new, full-depth precast-prestressed deck panels made of lightweight concrete. • Structural Connections: W14 steel beam segments will be installed and field-bolted to the existing girders and trusses. These segments will be grouted into shear pockets in the new deck panels to create a composite structure. • Post-Tensioning: The new deck panels will be post-tensioned longitudinally to ensure continuity and strength. • Surface and Railing: A half-inch Polyester Polymer Concrete (PPC) overlay will be applied to the deck. New steel bridge railings, designed to meet MASH 2016 Test Level 2 standards, will be installed on each side, matching the historic appearance of the original railing. • Approach Improvements: New guardrails will be constructed on the bridge approaches and departures, with lengths determined by safety calculations. The guardrail system may need to be adjusted in certain quadrants to accommodate existing access points for the Bureau of Land Management (BLM). • Environmental Remediation: Lead-based paint on the existing structure will be remediated from the top flanges of the girders and top chords of the deck trusses. • Erosion Control: Eroded areas in the quadrants of the bridge will be repaired • Develop plans, specifications, and estimates for construction
