Specifications include, but are not limited to: MDT is proposing to replace eleven structures in the Lewistown area through a CM/GC contract. This solicitation is for the design consultant for the project. The Construction Manager will be procured through a different solicitation. The project scope is to replace aging and deteriorating timber bridges in fair and poor condition with new bridges or culverts. Rehabilitation is not practical due to the advanced deterioration of the structures and load posting restrictions. Work will include road and approach construction to tie the new structures into the existing alignment.The consultant will be required to provide all services necessary for the project, including (but not limited to) bridge design; roadway design; geotechnical investigation, analysis, and design; surfacing design; survey; public involvement; environmental evaluation and permitting; hydraulics analysis and design; traffic analysis and design, cost estimating (production rate-based construction cost estimate, also known as a “bottom-up estimate”), utilities investigation and analysis, right of way design, and potentially right of way acquisition. The selected consultant must work effectively and efficiently with MDT and a construction contractor to develop a final design. Effective communication skills and an openness to investigating design alternatives will be critical for this project.