Stages 0: Feasibility and Interchange Justification and, Environmental Inventory
Part I: Feasibility Study The selected Consultant will refine alternative alignments previously identified and develop and evaluate several additional feasible and affordable alternatives for the proposed route, will provide a cost estimate for each alternative and will recommend the two preferred alternatives. Following the recommendation of the two preferred alternatives, the horizontal and vertical alignment will be more accurately defined and I-10 interchange alternates will be developed in accordance with DOTD and FHWA requirements for new/revised Interstate access for the two best alternatives. Following the recommendation of the best alternative, a draft report will be prepared and submitted for review. A separate report containing all traffic information for the recommended interchange alternative will also be developed. The specific services to be provided are described below: Alternatives Analysis A. Data Collection This task shall include obtaining, organizing and reviewing the engineering data required to perform this study. It shall include but not limited to the following items: 1. Mapping: Topographic maps, parish maps, state highway maps and recent aerial photography. If current aerial photography is not available, arrangements will be made to obtain the required coverage. 2. Engineering Data: Existing traffic data, accident data, existing highway and bridge plans and data, utility information, previous studies and reports, existing survey data and unit cost data. 3. Field Reconnaissance: Field inspections of the project area will be made as required to supplement the data obtained for the study.