Site work for a bridge / tunnel in Branson, Missouri. Conceptual plans call for site work for a bridge / tunnel.

The City of Branson is requesting engineering design proposals for a box culvert project located within the city. This project will be designed by a single firm and bid documents shall be produced to allow the City to solicit bids for construction. Timing for construction of the project will be dependent on budget availability. Engineering Design Services will consist of preliminary design development and final design of a box culvert for replacing the existing corrugated metal culvert. Project location is Cliff Drive between Canal Street and Hawthorn Street. (See attached Location Map). Location of the proposed project is approximately 1/4 mile east of State Highway 65 on Cliff Drive. One consultant will be selected for the design of the improvements. The preliminary design phase will include a concept level design. The consultant will determine/confirm the most feasible type of replacement of the existing metal culvert and a preliminary construction cost estimate will be included. Hydrology Report: o Drainage area map for the proposed improvements with contours at 10' major and 2' minor o HEC - 1, or approved program for runoff calculations o HEC - RAS, or approved program for water surface profile calculations o Hydraulic Capacity calculations for a minimum of 5, 25, 50 and 100-year storm o 404, 401, U.S. Department of Conservation & Army Corps of Engineers Permit Applications and approvals The city will provide current updated aerial and 2-foot contour maps which can be utilized. The consultant shall indicate critical design features evaluated such as the drainage area, design storm event, floodplain/floodway requirements, flow rate, headwater calculations and capacity. A signed and sealed No-Rise certification shall be included. The final design phase will be based on the findings of the preliminary design and will include all field survey, field measurements, calculations, construction drawings, temporary and permanent construction easement legal descriptions (if needed), specifications, construction opinion of cost, quantity and materials, bid forms, and the necessary documents to advertise, bid and award the construction contract. The design shall be in conformance to the City of Branson Design Criteria for Public Improvement Projects. Box Culvert shall be designed for HS20 Loading and backfilled. The method of Contractor Selection has not been Determined at this time.