Res 2011-154 - Laserfiche WebLink

Home Browse Search

designed with a restored - stream, low -flow channel compliant with Corps of Engineers requirements for 404 Permitting. Loomis will develop a hydraulic model of the proposed channel configuration. Construction plans will include general notes, plan and profile sheets for channel modifications, revised floodplain boundary locations, utilities relocation specifications, construction details, culvert designs at McKie, LBJ, Patton and Ellis (if required), natural channel restoration design downstream of Guadalupe, erosion and sedimentation control sheets, proposed hike and bike trail alignment (if required), and other planning, design and costing elements. 3. Corps Permitting — The previously developed and submitted PCN application for Corps of Engineers 404 permitting will be revised to exclude stream restorations upstream of Guadalupe (total avoidance of Corps jurisdictional waters) and will be re- submitted to the Corps. Corps comments will be addressed. This task assumes no more than two comment response iterations and that a Corps 404 permit will be obtained. 4. FEMA Permitting — Loomis will prepare a FEMA Letter of Map Revision Application and, upon completion of the channel project, will submit the LOMR and address FEMA comments. This task assumes a supplemental FEMA submittal will be provided at the conclusion of construction of the bridge under separate contract. 5. Technical specifications will be prepared for the project based on City of San Marcos standards, Corps of Engineers requirements for restored stream channels, TxDOT requirements, and TCEQ requirements for construction - phase erosion controls. Loomis will coordinate with the City to incorporate front end and contract documents to the final bid document set. 6. Loomis will provide 60% and 90% submittals to the City of San Marcos for review and comment. Submittals will include two sets of full size drawings at each submittal phase, and technical specifications at the 90% submittal. The final submittal will include one full size set of reproducible construction plans, a complete set of contract documents and technical specifications, one electronic set (CAD and PDF) of construction plans, contract documents and technical specifications. 7. An updated construction cost estimate will be provided at each submittal. 8. Quality Assurance / Quality Control — The QA/QC task will include independent review of the work at various stages of progress as well as review of all materials to be submitted. 9. Final Design Report — A final design report will be submitted to the City detailing the channel design decision process, HEC -HMS and HEC -RAS models with backup for selection of hydrologic and hydraulic parameters, specifications for restored channel design, and FEMA submittal materials.