Bridge Design Parameters: All structures and pavement design in this project should conform to relevant ADA, AASHTO, ODOT and CRPD design guidelines for bikeway facilities, including railings, ramps, horizontal and vertical curvature, as well as utilizing the requirements of the most recent version of the Columbus CMS. All stormwater infrastructure to be designed using the latest version of the City of Columbus Stormwater Drainage Manual. General guidelines include, but are not limited to: • The truss bridge shall be designed by a professional engineer experienced in through truss bridge design and shall be licensed to practice in the State of Ohio. The bridge shall meet the ODOT Level 6 Qualification • Minimum path width of 14 feet. • Designed for emergency vehicle access. • The bridge deck material shall be concrete with steel form support • The proposed bridge superstructure shall not impact current waterway. • Utilities, Coordination and Documentation – Comprehensive list of all utilities identification of all utility conflicts will be compiled and documented within the project limits. • At a minimum the consultants effort to include, but are not limited to: o Site Plan (including existing structures) o Bridge General Notes o Bridge Estimated Quantities o Bridge Removal Details o Bridge Geometry & Layout Plan o Rear Abutment (Plan & Elevation) o Forward Abutment (Plan & Elevation) o Wingwall Details (Plan & Elevation) o Pre-Engineered Steel Truss Plans - Superstructure Details (Slab Plans, Transverse Section, Bearing Details) o Approach Slabs o Reinforcing Steel Schedule o Bridge Pay Item Quantities and Final Construction Cost Estimate will be generated. o The completed Preliminary Plans shall be submitted to CRPD for review and approval. o Final Design plan set and construction documents Stream Restoration Design Parameters: The stream restoration will restore approximately 350 L.F of stream and shift the channel just upstream of the existing bridge. Bank stabilization along various areas of this stretch of creek will be created for safety and habitat. Re-grading of the banks will be completed to minimize flood damage and water redirection back to stream. Restoration and stabilization efforts will also include live-stakes and branch layering, enhanced riffles and pools, and a boulder cross-vane structure to divert flow away from abutments. Existing rip-rap will be removed and utilized on site as designated by the CRPD. The banks and floodplain will be replanted with native floodplain tree and shrub species. The Design firm will be responsible for the design, permitting, geotechnical evaluations, H&H modeling, and for locating all utilities prior to commencing work. This includes all requires surveying and data collection for the basis of design and to prepare and submit required local, state, and federal permit applications. General guidelines include, but are not limited to: • Designs shall meet or exceed local, state, and federal regulations and standards, ensuring compliance with all applicable codes and guidelines. • Design should not permanently alter the putting green along southwest edge of streambank. • The stream restoration team shall coordinate with other Phase I design components (such as the bridge and other elements) to ensure a cohesive and integrated approach to the overall project. • The design team must work collaboratively with engineers, ecologists, landscape architects and other stakeholders to achieve project goals. • Implement erosion control strategies in areas adjacent to stream restoration activities to protect water quality during construction. • Incorporate native plantings along stream banks in alignment with restoration objectives, promoting biodiversity and habitat connectivity • At a minimum the consultants shall prepare, but are not limited to: o Final Design plan set and construction, including necessary layout, grading, materials and landscape plans, specifications, and details o Design drawings (plan, elevation, section, and detail) o Technical specifications and materials lists o Construction cost estimate o The Design firm is required to apply and obtain all federal, state, and local required permits the following area a list of anticipated permits: o Section 404/401 o FEMA CLOMR/LOMR o Local Floodplain Permit
