Legislation Details

File #: 2026-1303    Version: 1
Type: Motion Status: Pending Executive Signature
File created: 5/19/2026 In control: General Legislative Session
On agenda: 6/3/2026 Final action: 6/3/2026
Title: Motion 26-214, authorizing the County Executive to sign Change Order #6 to Progressive Design Build Agreement PDB01-23 with Cornerstone General Contractors for the design and construction of the Arlington Operations Center
Attachments: 1. Motion 26-214, 2. Staff Report, 3. Change Order 6 (PENDING EXECUTIVE SIGNATURE), 4. Change Order 5, 5. Change Order 4, 6. Change Order 3, 7. Change Order 2, 8. Change Order 1, 9. Amendment 5, 10. Amendment 4, 11. Amendment 3, 12. Amendment 2, 13. Amendment 1, 14. Contract, 15. Certificate of Insurance, 16. Motion Assignment Slip

 

 

Executive/Council Action Form (ECAF)

 

 

ITEM TITLE:

Title

Motion 26-214, authorizing the County Executive to sign Change Order #6 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 Tom Teigen 5/21/26

 

PURPOSE: Approval of Change Order #6 to authorize payment to the Contractor, Cornerstone General Construction for added work associated with an EV Charging System & Key Storage Box.

 

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 five 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. There have been five Change Orders totaling $324,367.47, two of which were within the PW Directors authority for approval, and the additional three change orders approved via Motion 26-146, Motion 26-141, and Motion 26-140. Change Order #6 requires Council consideration.  An EV Charging System Distribution Panel and Key Storage Box are needed along the South property line above the sloping wall as protection against heavy duty traffic on the neighboring property. The total request for change order 6 is $80,503.71, bringing the total contract amount NTE $31,042,817.18. 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

$80,503.71

 

$80,503.71

 

 

 

 

 

 

 

 

 

 

 

 

TOTAL

$80,503.71

 

$80,503.71

 

 

REVENUE: FUND, AGY, ORG, REV, SOURCE

CURRENT YR

2ND YR

1ST 6 YRS

Fund 306 Arlington Operations Center

$80,503.71

 

$80,503.71

 

 

 

 

 

 

 

 

 

 

 

 

TOTAL

$80,503.71

 

$80,503.71

 

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

AMENDMENT

5

CONTRACT#

PDB01-23

AMOUNT

$0.00

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

CHANGE ORDER

4

CONTRACT#

PDB01-23

AMOUNT

$129,507.54

CHANGE ORDER

5

CONTRACT#

PDB01-23

AMOUNT

$57,004.68

CHANGE ORDER

6

CONTRACT#

PDB01-23

AMOUNT

$80,503.71

 

Contract Period

ORIGINAL

Start

12/13/23

End

Completion

AMENDMENT 1

Start

02/29/24

End

Completion

AMENDMENT 2

Start

08/21/24

End

Completion

AMENDMENT 3

Start

07/10/25

End

Completion

AMENDMENT 4

Start

07/17/25

End

Completion

AMENDMENT 5

Start

04/30/26

End

Completion

CHANGE ORDER 1

Start

03/11/26

End

Completion

CHANGE ORDER 2

Start

03/11/26

End

Completion

CHANGE ORDER 3

Start

04/28/26

End

Completion

CHANGE ORDER 4

Start

04/28/26

End

Completion

CHANGE ORDER 5

Start

04/28/26

End

Completion

CHANGE ORDER 6

Start

Execution

End

Completion

 

OTHER DEPARTMENTAL REVIEWCOMMENTS:   Reviewed/approved by Risk Management (Stephanie Rousseau 5/50/26) and Finance (Nathan Kennedy 5/20/26)