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<br />Lexington-Broadway Stormwater Imp. Phase 1 1 Scope of Services <br />EXHIBIT A <br />SCOPE OF SERVICES <br />Background <br />Lexington-Broadway Stormwater Improvements preliminary design was completed in August <br />2023. Final design and construction will be completed in phases to allow for offline construction <br />of the treatment facilities, to mitigate construction impacts to the community, and to proportion <br />construction costs and plan budget expenditures. Project phasing is summarized below: <br />1. Phase 1 work includes stormwater conveyance piping in Lenora Street, pretreatment <br />structures in Zillah Street, and a regional stormwater treatment facility on property at the <br />Lenora Street/Zillah Street intersection. Refer to Figure 1 for the Phase 1 design limits. <br />2. Future Phase 2 work includes stormwater conveyance piping in Lenora Street beneath the <br />Burlington Northern Santa Fe (BNSF) railroad crossing and construction of a new <br />stormwater outfall to the Snohomish River, located within Riverfront Park. <br />3. Future Phase 3 and Phase 4 work includes the stormwater conveyance and collection <br />system in 3rd Avenue, Lowell Road, 52nd Street, Broadway, Commercial Avenue, and <br />Lexington Avenue. <br /> <br /> <br />Figure 1. Lexington-Broadway Stormwater Improvements Phase 1 location