---
type: "Bill"
title: "Concerning roundabouts."
description: "Concerning roundabouts."
jurisdiction: "us/states/wa"
legislature: "Washington Legislature"
session: "2019-2020"
identifier: "SB 6084"
citation: "Washington SB 6084 (2019-2020)"
classification: ["bill"]
subjects: ["MOTOR VEHICLES", "TRAFFIC"]
status: "enacted"
primary_sponsors: ["Takko"]
version_count: 2
action_count: 28
vote_count: 2
first_action: "2019-12-18"
last_action: "2020-03-27"
source: "openstates"
source_identifier: "ocd-bill/0cce40a5-04c8-456a-9417-6d061838cb2f"
source_url: "http://apps.leg.wa.gov/billinfo/summary.aspx?bill=6084&year=2019"
source_hash: "3d7b8108cff33dc53e6dde6b408079fd163a98a8a9d4d47f55d1cd470f771270"
vintage: "2026-07-01"
source_snapshot: "https://data.openstates.org/daily/2026-07-01/public.pgdump"
retrieved_at: "2026-07-06"
confidence: "reported"
tags: ["legislation", "bill", "us-wa"]
---

# Washington SB 6084 (2019-2020) — Concerning roundabouts.

## Version chain

The bill's text revisions, in order — the diff chain from filing to enrollment.

1. **Bill** (committee substitute) — [source](http://lawfilesext.leg.wa.gov/Biennium/2019-20/Htm/Bills/Senate%20Bills/6084.htm)
2. **Substitute Bill** (committee substitute) — [source](http://lawfilesext.leg.wa.gov/Biennium/2019-20/Htm/Bills/Senate%20Bills/6084-S.htm)

## Votes

- 3rd Reading & Final Passage (#34) — **97–0** (pass) · lower
- 3rd Reading & Final Passage (#32) — **47–1** (pass) · upper

## Sponsors

- Takko — primary (person)
- Hobbs — cosponsor (person)
- Mullet — cosponsor (person)
- Padden — cosponsor (person)

## Timeline

The legislative action history — every referral, reading, and vote.

- **2019-12-18** Prefiled for introduction. `filing`
- **2020-01-13** First reading, referred to Transportation. `reading-1`
- **2020-02-10** TRAN - Majority; 1st substitute bill be substituted, do pass. `passage`
- **2020-02-11** Passed to Rules Committee for second reading.
- **2020-02-17** Placed on second reading consent calendar.
- **2020-02-17** 1st substitute bill substituted. `substitution`
- **2020-02-10** TRAN - Majority; 1st substitute bill be substituted, do pass. `passage`
- **2020-02-11** Passed to Rules Committee for second reading.
- **2020-02-17** Placed on second reading consent calendar.
- **2020-02-17** 1st substitute bill substituted. `substitution`
- **2020-02-17** Rules suspended. Placed on Third Reading.
- **2020-02-17** Third reading, passed; yeas, 47; nays, 1; absent, 0; excused, 1. `reading-3`
- **2020-02-19** First reading, referred to Transportation. `reading-1`
- **2020-03-02** TR - Majority; do pass.
- **2020-03-03** Referred to Rules 2 Review.
- **2020-03-05** Rules Committee relieved of further consideration. Placed on second reading.
- **2020-03-06** Rules suspended. Placed on Third Reading.
- **2020-03-06** Third reading, passed; yeas, 97; nays, 0; absent, 0; excused, 1. `reading-3`
- **2020-03-09** President signed. `passage`
- **2020-03-10** Speaker signed. `passage`
- **2020-03-11** Delivered to Governor.
- **2020-03-27** Governor signed. `executive-signature`
- **2020-03-27** Chapter 199, 2020 Laws. `became-law`
- **2020-03-27** Effective date 6/11/2020. `became-law`
- **2020-01-28T20:30:00+00:00** Scheduled for public hearing in the Senate Committee on Transportation at 03:30 PM
- **2020-02-10T18:30:00+00:00** Scheduled for public hearing in the Senate Committee on Transportation at 01:30 PM
- **2020-03-02T18:30:00+00:00** Scheduled for public hearing in the House Committee on Transportation at 01:30 PM
- **2020-02-29T16:00:00+00:00** Scheduled for public hearing in the House Committee on Transportation at 11:00 AM

## Source

OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/0cce40a5-04c8-456a-9417-6d061838cb2f`. Confidence: reported (aggregated from official Washington legislature records).