Prime Contractor Rank #41
UBI: 602140049
Lic: NORTHWT994PJ
NORTHWEST TRAFFIC INC
Washington State public works contractor profile detailing awarded contract volumes, total project counts, top project awards, and county geographic distribution (2018–2025).
Total Awarded Spend
$6.77B
Total Projects
1,071
NORTHWEST TRAFFIC INC Award Trends (2018–2025)
Dual line chart: Total Spend ($) solid blue line vs Total Projects dashed gold line
Total Spend ($)
Total Projects
Swipe horizontally to explore trends
County Geographic Footprint
King County
$5.19B
Pierce County
$604.94M
Snohomish County
$456.15M
Thurston County
$216.38M
Lewis County
$83.38M
Kitsap County
$77.72M
Grays Harbor County
$64.04M
Clark County
$25.41M
Pacific County
$22.07M
Skagit County
$19.95M
Mason County
$12.56M
Chelan County
$9.59M
Kittitas County
$3.67M
Jefferson County
$2.94M
Island County
$1.04M
Clallam County
$862.0K
Cowlitz County
$224.3K
Whatcom County
$113.2K
Major Awarded Public Projects
Washington State Convention Center Addition
$900.00M
Awarding Agency: CONVENTION & TRADE CENTER, WASH STATE (King County)
Date: 2022-04-20
N125 TBM Tunnels (UW to Maple Leaf Portal)
$440.32M
Awarding Agency: SOUND TRANSIT (King County)
Date: 2018-05-22
North Satellite Renovation & Expansion
$375.00M
Awarding Agency: SEATTLE, PORT OF (King County)
Date: 2019-10-16
SR 509, SR 509 Completion - Stage 1B - 009424
$263.98M
Awarding Agency: TRANSPORTATION, WASH STATE DEPT OF (King County)
Date: 2025-12-17
SCWQP- Tunnel Storage
$254.99M
Awarding Agency: SEATTLE, CITY OF (King County)
Date: 2026-02-12