Specifications include, but are not limited to: • Feasibility study. A narrative of the feasibility for installing a diversion structure and ditch to route a portion of the flood flows from Buckeye Creek to the north to Dangberg Reservoir #3 and #4. o Hydraulic analysis of diverting approximately 900 Cubic Feet per Second (CFS) from the Buckeye Creek north to Dangberg #3 and #4. Update of the twodimensional model prepared by JE Fuller on the impact on the downstream floodplain. The existing two-dimensional model files will be made available and used as the basis for analyzing the results of the diversion. o Constraints/challenges with the project. o Narrative of cost estimate. o Additional technical reports or analysis that might be required if the project were to move forward. o Permitting requirements. o Possible grant funding sources. o Overall opinion on the feasibility of the project based on constraints, costs, and constructability. • Preliminary Engineering Plans (15%). A preliminary design will be prepared that is expected to be conceptual in nature but should cover the following main design elements: o Location of diversion in the Buckeye Creek. o Horizontal alignment of diversion ditch from Buckeye Creek to Dangberg #3 and #4. Typical trapezoidal ditch cross-section. o Vertical alignment. If budget allows, the scope may be adjusted to collect new topography. Otherwise, consultant may rely upon publicly available topography. Assumption of 0.5% slope is acceptable to determine/confirm ditch capacity. • Preliminary Engineer’s Estimate of Construction Cost based on Preliminary Design. o Itemized per main element of work. • If budget allows, the scope of work may be extended to include extending the ditch south under Buckeye Road to connect to the outfall from Dangberg Reservoir #01. This would be a secondary objective and only considered if there is budget available after the primary objective is completed.
