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City ©f u Allan Ekberg, Mayor <br />Public Works Department - Henry Hash, Director <br />INFORMATIONAL MEMORANDUM <br />TO: Transportation and Infrastructure Committee <br />FROM: Henry Hash, Public Works Director /10/ <br />BY: Ryan Larson, Senior Program Manager <br />CC: Mayor Ekberg <br />DATE: May 17, 2018 <br />SUBJECT: Surface Water Fund — 2018 Annual Small Drainage Program <br />Project No. 91841201 <br />King County Funding Agreement — S 180th Street Bridge Flood Wall Extension <br />ISSUE <br />Authorize the Mayor to sign a funding agreement with King County. <br />BACKGROUND <br />During an inspection of the Tukwila 205 Levee, it was noted that the S 180th St flood wall was not <br />constructed correctly as it tied into the S 180th St west bridge abutment. The flood wall was angled <br />down allowing an approximate 20-foot segment to be up to 3.9 feet below the required protection <br />level of the levee system. The Corps of Engineers noted this as a levee deficiency and requested <br />that the City complete a project to correct this issue. <br />The 2018 Annual Small Drainage Program included a project that reconstructed a portion of the S <br />180th St flood wall to provide the correct flood protection elevation. The project was completed in <br />November of 2018. <br />DISCUSSION <br />Staff worked with the King County Flood Control District to secure up to $65,378.00 in funding for <br />design and construction of the S 180th St flood wall repair. All design, permitting, and construction <br />work has been completed on this project. This agreement will allow King County to reimburse the <br />City for this work. <br />RECOMMENDATION <br />Council is being asked to authorize the Mayor to execute the funding agreement between King <br />County and the City of Tukwila and consider this item on the Consent Agenda at the June 3, 2019 <br />Regular Meeting. <br />ATTACHMENTS <br />King County Funding Agreement — S 180th St Bridge Flood Wall Extension <br />W:\PW Eng\PROJECTS \A- DR Projects\Annual Small Drainage Programs\2018 SDP (91841201)\Grants\King County\Info Memo KC Funding Agreement S. 180th Wall.docx <br />