Res-2021-076 FCZD - Laserfiche WebLink

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Attachment 1 to Amendment 2 - Scope of Work 1.1. Complete a site visit to review conditions in the vicinity of the lower levee and l-g0 bridge. 1.2. Gather and review existing survey, geotechnical, structural, flood, utility, easement, and as-built data for the lower levee, l-90 bridge, and City pathway through the bridge. 1.3. Assess the adequacy of existing survey and geotechnical data, develop a project topographic basemap, and assess geotechnical conditions. 1.4. Complete calculations and prepare a 9A% Design Package for a lower levee to l-g0 bridge connection, ihis is assumed to involve reconfiguring the lower levee and extending iVconnecting it to the existing ecology block wall that extends through the bridge along the City path. The concept is for the ecology block wall to serve as a flood wall, attempting to maintain at least a 2 ft freeboard above the BFE. The design will include reviewing geotechnical issues and consider current USACOE design recommendations for levee-floodwall transitions/connections. 1.5. Prepare 90% project specifications and special provisions for a lower levee to l-90 bridge connection. '1.6. Prepare 90% materials quantities and construction cost estimate. 1.7 . Prepare a g0% bid schedule. 1,8. Complete internal QA/QC review and submit the 90% Lower Levee to l-90 Bridge Connection Design Package to the City and/or Gounty for review and comment. 1.9. Review City and/or County comments and prepare recommended responses. 1.10, Meet with the City and/or County to review comments, recommended responses, and obtain direction on the final responses. Task 1 Deliverables Lower Levee to I-90 Bridge connection g0% Design package (pDF format): - Topographical basemap and g0% design and rESC an 11" x 17" pran sheefs.- Standard defails and specifications.- Special provisions and specifications.- Engineers estimate of probable project cost.- Bid schedule. a Task 1 Assumptions . Sife visit involves two Aspect engineers for half a day.r No new suruey or geotechnicalworkis needed, or suruey work is provided by the County. . No major utility conflicts requiring significant utility retocation design effort.. Given existing infrastructure constraints, Aspect does nof guarantee any particular freeboard can be achieved at and througtt the l-90 bridge.. One 90% design review cycle by the City.. No permitting or agency coordination support. Reecer Creek Flaodplain Mapping and Levee Certification Support Services Project 3 | page