Res-2017-115 Task Order - Laserfiche WebLink

Home Browse Search

KITTITAS COUNTY DEPARTMENT OF PUBLIC WORKS layout will be quickly reviewed to ensure this is the case. Kpff to discuss the pros and cons with the County before proceeding with a final decision and design. 4. Kpffto layout new bridge to ensure, as best as possible, that no right-of-way takes will be required. 5. Kpffto design guardrail layout in collaboration with the County. Guardrail on the bridge will meet current WSDOTIAASHTO design specifications and criteria based on road use and speed. Guardrail off the bridge will follow as best as possible the WSDOT Standard Plans for guardrail layout. The final guardrail alignment will achieve a best fit between the WSDOT Standard Plans and the actual space available to fit it. Based on early site visits it appears that the rail will need to make some very short radius turns to fit into the irrigation canal access roads and nearby residential driveways. 6. KPFF will provide all necessary Civil engineering effort including specifications, quantities and costs as needed for the development of these plans. This is assumed to include roadway sections, grade profiles , drainage issues, utility concerns, and shoulder and ditch layouts. County to coordinate with Kpffregarding guardrail off the bridge. 7. Kpffto provide specifications related to the PS&E they develop only. An effort will be made to consolidate all specs on to the plans to work in conjunctions with the WSDOT Standard Specifications (2016 and all amendments and GSP revisions to the latest date possible -likely January of 20 18). 8. The bridge will be closed during construction. 9. Currently the new bridge is assumed to be designed for two 12 foot lanes , and two 2 foot shoulders. The width shall meet approach widths at a minimum, and as prescribed by the County . 10. No sidewalks. 11. County will inform Kpffif curbs are required and if they are what type, size, and the extent of layout beyond the bridge is desirable. 12. Bridge superstructure will have a 2% crown from the centerline of the roadway , or as prescribed by the County. 13. Stripping and final channelization of the approach and bridge will be provided by the KPFF. 14. There will be no drains on the bridge . 15. Bridge will be a single span. 16. Voided pre-cast box slabs with a 5 inch topping and overlay will likely provide the most cost effective design and will serve as the basis of the Kpff design unless prescribed differently by the County. 17. Kpff, as EOR, to make use of the Sargent concept development plans for efficiency to the extent possible but are not obligated to follow the Sargent layout and design explicitly. Milestones: Kpffwill provide a PDF of the plans for the 30%, 75%, and 100% design at the dates shown below. For efficiency, the design will continue following milestone submittal while the county performs review of 3