Drafter

Clerk 10/17/2023

Title

A RESOLUTION amending an interlocal agreement with the city of Bellevue regarding the 148th Ave SE at Larsen Lake Flood Mitigation Project.

Body

                     WHEREAS, the 148th Avenue corridor is the only major north-south arterial in east Bellevue, a federally designated T-3 truck route, and a critical commuting and emergency services access route between Interstate 90 and State Route 520 with average daily traffic over 33,000 vehicles, and

                     WHEREAS, between 1999 and 2019, 148th Avenue SE has been fully or partially closed on 23 separate occasions due to flooding caused by moderate to heavy rain or long duration rain events between SE 8th Street and Main Street.  Adjacent corridors are impacted by the closures of 148th Avenue SE run through residential areas and do not have the capacity to manage the additional vehicles, causing major traffic and safety issues.  In addition to roadway impacts and closures on 148th Avenue SE, the impacts of flooding are more widespread, threatening park lands, blueberry fields, and nearby residences, and

                     WHEREAS, the city of Bellevue ("Bellevue") and the King County Flood Control Zone District ("District") have identified the need to reduce or eliminate roadway flooding on 148th Avenue SE, between SE 8th Street and Main Street, adjacent to Lake Hills Greenbelt, also known as Larsen Lake, as a flood risk reduction project necessary to increase the level of flood protection to Bellevue residents, and

                     WHEREAS, the project will initiate preliminary design to progress toward construction of best drainage treatments and resilient design to reduce or eliminate roadway flooding on 148th Avenue SE, between SE 8th Street and Main Street ("Project"), and

                     WHEREAS, the District has included the Project in its 2021 CIP and budget, in a total amount of $400,000, and

                     WHEREAS, the District increase the budget amount for the Project by $138,000 in its 2023 Midyear Budget, for a total of $538,500, and

                     WHEREAS, Bellevue has agreed to serve as the District's service provider for the Project;

                     NOW, THEREFORE, BE IT RESOLVED BY THE BOARD OF SUPERVISORS OF THE KING COUNTY FLOOD CONTROL ZONE DISTRICT:

                     SECTION 1.  The board of supervisors approves the "Amended Agreement" for 148th Ave SE at Larsen Lake Flood Mitigation Project between the King County Flood

Control Zone District and the City of Bellevue, "Attachment A" to this resolution, and authorizes the chair to sign the agreement.