PACE Engineers, Inc. 11/12/2024 - Laserfiche WebLink

deliverables and the alternatives selection will be incorporated into the larger Design Report. The City will review and comment on/approve the preferred alternative before PACE moves forward. PACE will complete a Design Report outlining the existing conditions at the site, hydrology estimates, hydraulic modeling, and scour estimates, the risk of channel migration and degradation, the rationale for design decisions, and a description of the design in support of the plan sets. The designs documented in the reports will follow the guidelines laid out in the WDFW Water Crossing Design Guidelines (2013). A draft and final version of the report will be delivered for review by the City in conjunction with the preliminary and final design plan sets described in Tasks 700 and 800. The Design Report will include the following: • Site assessment results • Existing geomorphology • Hydrology method and results • Existing and proposed modeling and analysis • Channel and crossing designs • Streambed design • Restoration components Deliverables PACE will provide the following deliverables: • Draft Design Report • Final Design Report • Preliminary-level type, size, and location engineering plans presenting two (2) crossing structure alternatives for the culvert replacement portion of the project. Including preliminary maintenance of traffic plan and construction staging plan to allow for the preferred alternative decision. Assumptions: • Due to the limited cover present at the culvert crossing the anticipated analysis will compare a 3- sided concrete box culvert against a 4-sided concrete box culvert. TASK 700 –INTERMEDIATE DESIGN-60% PS&E Under this task, the 60% design package will be updated including the plans, cost estimate, and project manual. Specific design elements that will be reviewed and updated include temporary traffic control plans, detour plans, TESC, site preparation, grading plan, paving plan, storm plan and profiles, culvert plan and profile, stream channel restoration plan, and any diversion structure details. Specific to the culvert replacement and stream channel restoration, PACE will provide design of the stream alignment; design of the proposed channel geometry, crossing structure type, size, and layout; design of the roadway elevation and alignment; and design of any large woody material (LWM) or other restoration features Deliverables PACE will provide the following deliverables: • 60% design plans (11”x17”) in electronic PDF format. It is anticipated that the following sheets will be included in the 60% plan set:  1 cover sheet  1 legend and abbreviations sheet  1 general notes sheet