Specifications include, but are not limited to: Task 1 – Literature Review Conduct a literature review of research on live load distribution in concrete box culverts. A search of the TRIS database is a minimum. Task 1 – Review Current Analysis Review and calibrate current 3D analysis, and/or develop and calibrate new 3D finite element models for representative culverts. Task 3 – Parametric Study Plan Prepare a plan for the parametric study. The plan will be presented to the PRC before any work is to proceed. The parametric study will encompass a wide range of parameters that cover the design space for which CIP-RC box culverts are often used. Task 4 – Interim Report Submit an interim report documenting work completed in Tasks 1 – 3. Prepare a presentation to the PRC documenting the research effort completed in Tasks 1 and 2 as well as outline the plan for the parametric study developed during Task 3. Note: The PI may not proceed with the parametric study before PRC’s approval of the proposed plan and the written notification from the Project Manager. Task 5 – Conduct Parametric Study Conduct the parametric study outlined in Task 4 and approved in Task 4. Task 6 – Data Analysis Develop live load distribution formulas that account for the major parameters known to influence the behavior of culverts Task 7 – Provide a Final Report, Technical Summary, and PRC Presentation The researcher shall provide a final report that documents the entire research effort for internal future reference and the benefit of others. A Final Draft Report, Technical Summary document (two pages), and summary presentation to the Project Review Committee (PRC) are due three (3) months prior to the project completion date for review and approval. Task 8 – Workshop A workshop, demonstrating the application of the developed load rating formula(s), will be held at the end of the study after acceptance of the deliverables in Task 7.