Executive/Council Action Form (ECAF)
ITEM TITLE:
Title
Motion 22-502, authorizing the County Executive to sign Professional Services Agreement CCF03-22 with TranTech Engineering, LLC to provide design services for the Snohomish River Bridge #1 Scour Mitigation Project
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DEPARTMENT: Public Works
ORIGINATOR: Lori Ericsson (White)
EXECUTIVE RECOMMENDATION: Ken Klein (11/18/22)
PURPOSE: Approval of Agreement CCF03-22 will allow Snohomish County Public Works to utilize TranTech Engineering, LLC to provide Design Services necessary to complete the Snohomish River Bridge #1 Scour Mitigation project.
BACKGROUND: The Department of Public Works (PW) has received federal bridge program funding to complete a scour mitigation project on Snohomish River Bridge #1 which carries Airport Way/Avenue D over the Snohomish River. The 360-foot-long three span bridge was built in 1983. This is a heavily used crossing with an average daily traffic count of 16,383, of which 11% are trucks and it is the alternate route for North and South bound SR9 Bridge 9/118. The bridge scour evaluation, updated in November 2019, showed the bridge scour as 'critical' with a National Bridge Inspection Standard/Washington State Bridge Inventory System scour code of 3. The Engineering Services division of PW does not currently have the staff capacity to complete Design Services for this project. Through a Request for Qualifications (RFQ) PW has solicited the services of a consultant to assist the County with this project. TranTech Engineering, LLC. was one of three consulting firms responding to RFQ-22-005SB and was selected through established Federal, State and County policies and practices. This agreement will include surveying, geotechnical engineering, environmental permitting, cultural resources, hydrology, constructability reviews, 100% structural design, assistance during bidding and construction related design services. A Professional Services Agreement between Snohomish County...
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