TIC 2019-05-07 Item 2C - Contract Amendment #6 - 53rd Avenue South Construction Management with KPG Inc

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City of Tukwila Public Works Department - Henry Hash, Director INFORMATIONAL MEMORANDUM TO: Transportation and Infrastructure Committee FROM: Henry Hash, Public Works Director r' r/- BY: Peter Lau, Senior Program Manager CC: Mayor Allan Ekberg DATE: May 3, 2019 SUBJECT: 53rd Avenue South Project (South 137th Street to South 144th Street) Project No. 99110301, Contract No. 15-159 Construction Management Amendment No. 6 with KPG, Inc. ISSUE Approve Amendment No. 6 to Consultant Contract No. 15-159 with KPG, Inc. Allan Ekberg, Mayor BACKGROUND Contract No. 15-159 with KPG provided design and construction management (CM) services for the 53rd Ave S Project. DISCUSSION KPG's Amendment No. 6 will allow the continuation of construction engineering, inspection, and documentation compliance support for the full completion of the 53rd Ave S Project. The construction project is currently anticipated to be completed by June 2019. However, the progress of the utility conversion work will dictate when construction will actually be physically completed. If the slow progress of the utility conversion prohibits the contractor from efficiently completing the construction project, construction will be suspended until the utility conversion work is completed. FISCAL IMPACT The table below shows the project budget and expenditures, with the inclusion of KPG's Amendment No. 6: KPG's fee of $259,770.00 is reasonable for the scope of work provided to complete this challenging project. Design CM Construction Budget Design & ROW (up to Am No. 3) $809,382 $832,000 KPG CM Amendment Nos. 4 & 5 $858,842 870,000 KPG CM Amendment No. 6 259,770 City CM Staff (estimated total) 100,000 SCI Construction Contract w/ sales tax 5,953,250 7,548,000 SCI Change Orders No. 1 to 5 w sales tax 632,017 Construction Contingency 350,000 Total $809,382 $1,218,612 $6,935 267 Grand Total $8.963,261 $9.250.000 The current 2019 CIP project budget is sufficient to cover the cost of KPG's Amendment No. 6 and will leave a construction contingency of $300,000 to cover all future change orders and other additional costs needed to physically complete the 53rd Ave S Project. RECOMMENDATION Council is being asked to approve Amendment No. 6 to Contract No. 15-159 with KPG, Inc. in the amount of $259,770 for a new contract total of $1,774,201.69 for the 53rd Ave S Project and to consider this item on the Consent Agenda at the May 20, 2019 Regular Meeting. Attachments: 2019 CIP, page 3, KPG Amendment No. 6 W:1PW Eng1PROJECTSIA- RW & RS Projects153rd Ave S (99110301)1CN Managementllnfo Memo for KPG Supp #6, gl HH 050319.docx 21