C150242 Feasibility Study - Laserfiche WebLink

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I I I I I I I I I I I I I I I I I I I B. Hydraulic and Structural Design Criteria The primary hydraulic design consideration for the outlet works rehabilitation would include meeting SLRC flow requirements of 1,000 cfs with Lake Loveland 3-feet below gage height 41 (full) and avoiding the creation of flood and property damage downstream. Channel roughness, slope, losses, size and available head must be considered. The design of the new pre-fabricated railroad bridge would be based on BNSF Railroad design requirements, all bridges, drainage structures, retaining walls, etc. shall be designed to carry Cooper E-80 live load with diesel impact. Structures will be designed per American Railway Engineering and Maintenance of Way Association (AREMA) Manual chapters 1, 7, 8, or 15 as applicable, and designed by a licensed engineer. All structural plans will need to be reviewed and approved by BNSF Engineering. Structural design criteria involve the strength of the structural concrete and the foundation properties of the structures. Structural concrete would have a 28-day compressive strength of 4,000 PSI. A subsurface investigation program would verify the foundation properties during the design phase. The subsurface investigation would define foundation criteria as well as determine erosion resistance of the channel. c. Land and Right-of-Way Requirements The SLRC would construct the selected alternative on right-of-way owned by the stockholders of the company and on the property of BNSF Railroad per its 1905 agreement. D. Project Implementation Schedule Table VI-2 presents a potential schedule for this project. E. Cost Estimates Table VI-3 presents an estimate of the construction and construction services costs associated with the selected alternatives for the project as well as the requested loan amount from the CWCB. The financial program is presented in Section F. The 30