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File #: 2026-0751    Version: 1
Type: Motion Status: Pending Assignment to Committee
File created: 3/16/2026 In control: Public Infrastructure and Conservation Committee
On agenda: Final action:
Title: Motion 26-140, authorizing the County Executive to sign Change Order #3 to Progressive Design Build Agreement PDB01-23 with Cornerstone General Contractors for the design and construction of the Arlington Operations Center
Attachments: 1. Proposed Motion 26-140, 2. Change Order #3, 3. Change Order #2, 4. Change Order #1, 5. Amendment #4, 6. Amendment #3, 7. Amendment #2, 8. Amendment #1, 9. Contract, 10. Motion Assignment Slip
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Executive/Council Action Form (ECAF)

 

 

ITEM TITLE:

Title

Motion 26-140, authorizing the County Executive to sign Change Order #3 to Progressive Design Build Agreement PDB01-23 with Cornerstone General Contractors for the design and construction of the Arlington Operations Center

body

DEPARTMENT:  Public Works

 

ORIGINATOR:  Kelli Kunz

 

EXECUTIVE RECOMMENDATION:  Approved by Thomas Teigen 3/18/26

 

PURPOSE: Approval of Change Orders #3 to authorize payment to the Contractor, Cornerstone General Construction for added work associated with the storage bunkers.

 

BACKGROUND: The Department of Public Works determined the need to construct a new road operations center and emergency response facility at the County’s Arlington Operations site located in Arlington, WA  Through a Request for Qualifications and a subsequent Request for Proposal Public Works solicited the services of a Design Build Contractor or Consultant to assist the County with this project.  Cornerstone General Contractors responded to RFQ-23-001SB and RFP-23-004SB and was selected through established Federal State and County policies and practices.   Snohomish County and Cornerstone General Construction entered into agreement on December 13, 2023, for the design and construction of the Arlington Operations Center under Progressive Design Build Agreement PDB01-23 To date, PW has executed four amendments to the original agreement which include Validation (Motion No. 24-097), Design (Motion No. 24-317), Granite Falls Stating Site Construction (Motion No. 25-302) and Arlington Operations primary site construction (Motion No. 25-320). This project was not bid, but selected through an RFQ/RFP process and therefore requires Council approval for any contract amendments above $100,000 or 20% of the contract value, whichever is less.   PW has approved two Change Orders totaling $95,895.24 which are within the PW Directors authority for approval.  At this time additional change orders are needed above the PW Director’s authority and require Council consideration.  Change orders for consideration included in this ECAF are: Change Order #3 - During construction, additional rock was needed to both hoop buildings so the interior floor drains were at a 1% slope for drainage. The total request for change order 3 is $41,960.01.  Bringing the total contract amount NTE $30,775,801.25 This project is fully bond funded and does not include any Road Fund dollars. 

 

FISCAL IMPLICATIONS:

EXPEND: FUND, AGY, ORG, ACTY, OBJ, AU

CURRENT YR

2ND YR

1ST 6 YRS

306 501065016399 Construction

41,960.01

 

41,960.01

 

 

 

 

 

 

 

 

 

 

 

 

TOTAL

41,960.01

 

41,960.01

 

 

 

REVENUE: FUND, AGY, ORG, REV, SOURCE

CURRENT YR

2ND YR

1ST 6 YRS

Fund 306 Arlington Operations Center

41,960.01

 

41,960.01

 

 

 

 

 

 

 

 

 

 

 

 

TOTAL

41,960.01

 

41,960.01

 

DEPARTMENT FISCAL IMPACT NOTES:  Funding for this project is included in the 2025-2026 Biennial budget. This project is fully bond funded and does not include any work paid out of Road Fund dollars. Work is expected to be completed in 2026.

 

CONTRACT INFORMATION:

Original

 

Contract #

PDB01-23

Amount

$0.00

Amendment 1

 

Contract #

PDB01-23

Amount

$722,160.00

Amendment 2

 

Contract #

PDB01-23

Amount

$3,195,544.00

Amendment 3

 

Contract #

PDB01-23

Amount

$1,504,752.00

Amendment 4

 

Contract #

PDB01-23

Amount

$25,215,490.00

Change Order 1

 

Contract #

PDB01-23

Amount

$27,319.16

Change Order 2

 

Contract #

PDB01-23

Amount

$68,576.08

Change Order 3

 

Contract #

PDB01-23

Amount

$41,960.01

 

 

Contract Period

Original

Start

March 2024

End

Completion

Amendment 1

Start

August 2024

End

Completion

Amendment 2

Start

March 2025

End

Completion

Amendment 3

Start

July 2025

End

Completion

Amendment 4

Start

July 2025

End

Completion

Change Order 1

Start

March 2026

End

Completion

Change Order 2

Start

March 2026

End

Completion

Change Order 3

Start

Execution

End

Completion

 

OTHER DEPARTMENTAL REVIEW/COMMENTS:  Reviewed/approved by:  Risk Management (Sheila Barker 3/17/26) and Finance (Nathan Kennedy 3/17/26)