Resolution_JUB TO_Taxilane Complex Phase I

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TASK ORDER 2025-01 HANGAR TAXILANE COMPLEX PHASE 1 DESIGN AI P-3-53-0026-024-2025 4. Analyze the geotechnical testing data to determine the most cost-effective form of new construction. Analyze the performance and stability of existing asphalt section. Rehabilitation methods may include full depth reconstruction in designated select locations, pavement removal and replacement, or pavement overlay depending on test results. Hold a meeting with the CLIENT and FAA at the Airport to present findings of the Geotechnical Testing and analysis of existing pavement. Determine rehabilitation/reconstruction method best suited for the pavement surfaces. 5. Define critical aircraft for the pavement design of the project and develop pavement design section. Pavement design criteria shall be in accordance with the FAA Advisory Circular (AC) 150/5320-6G. This will include calculating and reporting the Airport Pavement Strength- PCR. 6. Perform analysis of existing geometric layout of Taxiway/Runway fillets and radii to determine compliance with current FAA AC requirements. Present findings to CLIENT and FAA for review and comments. 7. Review existing storm water drainage within the project boundary. Evaluate existing drainage patterns and systems. J-U-B shall conduct a required analysis for the design of drainage improvements associated with the project in accordance with the FAA AC 150/S320-5D, Surface Drainage Design. Any necessary drainage improvements will be sized to accommodate local drainage standards. This drainage effort is intended to integrate with previously established drainage designs (specifically the Parallel Taxiway). 8. Address subsurface drainage requirements for the runway and determine appropriate methods for compliance with the FAA Northwest Mountain Region policy on subsurface pavement drainage and edge underdrains. Location of underdrain outlets will be a significant portion of this study. 9. Perform analysis of existing Runway and Taxiway Shoulders, Safety Area and Object Free Area grading adjacent to project area to determine proposed taxilane compliance with current FAA AC 1 S0/S300-13B requirements. 10. Determine the operational and phasing effects of closing portions of adjacent apron pavement areas. Closing the runway will impact the airport users, FBO's and transient aircraft during the construction period. Study the effects of the various alternatives including night construction, temporary displaced thresholds, using parallel taxiway as temporary runway, or phased construction. Complete a cost analysis on all alternatives to present to CLIENT. Two meetings at the Airport will be needed to present preliminary alternatives and phasing plan to the CLIENT and stakeholders. 11. Prepare and submit a State Environmental Policy Act (SEPA) Environmental Checklist in accordance with Title 15 of Kittitas County Code. Environmental work \\ ub.com\Central\Clients\WA\KittitasCounty\Projects\45-25- 022_BowersField_HangarTxln_PhaselDsgn\ProjMgmt\Agreements\Old\TO 2025_01_RevSept202S.docx 6