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TIB Project Information

City of Arlington's 172nd Street (SR 531)


172nd Street (SR 531)

Smokey Point Blvd to 43rd Ave

FY 2021 Urban Arterial Program
Current Phase : Audit
Total TIB Funding : $1,233,976

County: Snohomish   |   Legislative District: 39   |   Project Length: 0.50   |   TIB Engineer: Greg Armstrong   |   Last Payment Date: 12/01/2022

Project Information

Funding Year 2021
Program UAP
Current Phase Audit
Legislative District 39
Congressional District 2
Federal Route Number 0531
Project Length 0.50 mi.
ADT 26,000
Functional Class Minor
Type of Work Safety
Project Contact James Kelly
Contact Email
TIB Engineer Greg Armstrong
Last Payment Date 12/01/2022
Cultural Resource Assessment CRA

Project Schedule

  Target Date Actual Date
Project Selection Date   11/22/2019
Delayed Project Date 07/01/2024  
DAHP Assessment Date  
Predesign Approval
Design Approval 02/01/2020 12/26/2019
Bid Auth. Approval 06/02/2021 06/03/2021
Construction Approval 09/08/2021 09/08/2021
Project Closeout 12/31/2022 11/22/2022
Audit Date   12/01/2022
Withdrawn Date  

Project Funding

TIB Funds Project Costs
Environmental Study 0 0
Design Study 0 0
Total Predesign 0 0
Special Study 0 0
Design 95,133 202,636
Right of Way 26,640 133,039
Total Design 121,773 335,675
Construction Engineering 123,781 145,256
Construction Contract 875,774 1,858,208
Other Construction 0 74,160
Total Construction 999,555 2,077,624
Funding Increase 112,648  
Total TIB Funding 1,233,976 2,413,299

Local Funding Partners

Funding Amount Percent
ARLINGTON 1,179,323 48.9%
WSDOT Funding 0 0.0%
Total Local Funding 1,179,323 48.9%

Project Description

'The solutions for the needs described above, traffic calming, safe pedestrian crossing, and transit facilities, can be solved by this project. These solutions are further described below- TRAFFIC CALMING One of the main causes of the 90 accidents that have occurred within the project corridor over the past three years stem from unprotected left turn movements from the center turn lane and left turn pockets. This project will eliminate the center turn lane and left turn pockets from the ½ mile long 172nd Street (SR 531) corridor between Smokey Point Blvd and 43rd Ave. A new intersection will be installed at 40th Ave that will provide protected left-turn and U-turn movements. - SAFE PEDESTRIAN CROSSING The new intersection at 40th Avenue will include ADA compliant pedestrian crossing facilities complete with pedestrian count down crossing heads. This will especially be a benefit to the new 255 unit low income senior apart complex that will open in 2020. - TRANSIT FACILITIES There will be two new bus pull out stations installed on either side of the 40th Avenue intersection. While Community Transit does not currently have a route on 172nd Street (SR 531), one will be added in the near future and these safe bus pull-out stations will be ready.'

Project Pictures

Project Delays

Delay Type Resolution Date Comments

No delayed project history.

Project Payments