Laserfiche WebLink
City of Tukwila My WebLink |HelpSearch Tips |About |Sign Out
City of Tukwila <br />Allan Ekberg, Mayor <br />Pubtk Works Deportment - Hari Ponnekanti, Director/City Engineer <br />INFORMATIONAL MEMORANDUM <br />TO: Transportation and Infrastructure Services Committee <br />FROM: Hari Ponnekanti, Public Works Director/City Engineer <br />BY: Adib Altallal, Utilities Engineer <br />CC: Mayor Allan Ekberg <br />DATE: August 4, 2023 <br />SUBJECT: S 149th and S 150th St Watermain Replacement Project <br />Project No. 92340102 <br />Design and Construction Management Contract Award <br />ISSUE <br />Approve design and construction management agreement with WSP for the S 149th and S 150th St Watermain Replacement <br />Project. <br />BACKGROUND <br />In 2016, City staff identified the need for upsizing the aging 6" cast iron pipe along S 149th St and 150th St and extending it into <br />Macadam Rd to loop the system in the area and increase the availability of fire flow in the case of an emergency. <br />DISCUSSION <br />When the project was identified in 2016, it was planned to be designed and constructed in two separate phases. After further <br />assessment of the situation and the availability of funds, it was determined to be a better choice to combine the two projects <br />into one. Combining the projects will allow us to complete construction at one time, thus saving resources and prevent <br />inconveniencing residents with multiple street closures along this route. Approximately 2,000 LF of 6" cast iron pipe will be <br />replaced with 12" ductile iron pipe. The existing dead-end pipe along S 149th St will be extended approximately 500 LF and <br />looped into Macadam Rd. Looping the system will increase redundancy and reduce maintenance needs. Three consultants on <br />the MRSC list were solicited for the design project. All three consultants submitted proposals, and WSP Inc was chosen as the <br />most qualified. <br />FINANCIAL IMPACT <br />The project costs will be 100% funded by the water enterprise fund. The contract is for $348,335.06 for the design and <br />construction management services for the S 149th St and S 150th St Watermain Replacement Project. <br />Cost Estimate <br />Contract $348,335.06 <br />Fund Source 2024-2025 Design/CM Budget <br />S 149th/S 150th CIP $500,000.00 <br />Total $500,000.00 <br />RECOMMENDATION <br />Council is being asked to approve a design and construction management agreement for design services with WSP in the <br />amount of $348,335.06 for the S 149th St and S 150th St Watermain Replacement Project and consider this item on the <br />Consent Agenda at the August 21, 2023 Regular Council Meeting. <br />Attachments: 2023 CIP, Page 59 <br />WSP Agreement <br />WSP Scope <br />7 <br />