City of Richland's Duportail Extension
The City of Richland's Duportail Extension project was selected for funding in November 2013.

TIB contributed $1,819,442 in funding toward the $1,957,520 total cost of the project.

For more information about this project, contact:
Christa Draggie
Project Engineer
(360) 586-1147
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Duportail Extension
Robert Ave to Wellsian Way
FY 2015 Urban Arterial Program
Project Length: 0.72 mi.
ADT: 0
Functional Class: Minor
Type of Work: New Location
Total TIB Funding: $1,819,442
Total Project Costs: $1,957,520
Funding Partners
  • $1,819,442 from TIB's Urban Arterial Program (UAP)
  • $138,078 from the City of Richland
Project Benefits
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About the Project
The project reconfigures the Thayer Drive/Duportail Street intersection with a single-lane roundabout. Duportail Street will extend from Thayer Drive to Wellhouse Loop to provide two travel lanes, a two-way center left turn lane, bike lanes and sidewalk on both sides of the street. A new signal will also be constructed at the intersection of Duportail Street and Wellsian Way.
Project Location