BR_114.3_Ship Creek - Steel Package-IFC - Pages 1 - 11.pdf

This is a set of detailed engineering drawings and specifications from the Alaska Railroad Corporation for the fabrication and supply of bridge components, including two 79-foot deck plate girder spans and one 30-foot rolled beam span for Bridge 114.3. The drawings, dated February 14, 2025, contain comprehensive structural details including framing plans, bearing details, diaphragm connections, support brackets, and deck plate layouts. The project location is shown near Ship Creek in Anchorage, Alaska, with detailed site maps and vicinity plans included. The documents specify that all components must be designed in accordance with the 2024 AREMA Manual for Railway Engineering standards, with specific requirements for seismic design and steel structures.

The technical specifications outline precise material requirements, including structural steel conforming to ASTM A709 Grade 50 standards, bearing components, and welding specifications. The bid schedule indicates quantities of one 79' deck plate girder span (assembled) at 278,500 lbs and one 30' rolled beam span (assembled) at 61,200 lbs, for a total structural steel quantity of 618,200 lbs. The drawings include detailed stress tables, camber diagrams, and load calculations, with specific requirements for fabrication quality control, surface preparation, and installation procedures. All structural components must meet strict quality assurance standards with shop testing and owner approval requirements before shipment.