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SB 423MONTANASession 2025State Billdead
Did Not Advance

Montana Senate Bill 423 revises the designated route of the Lewis and Clark Highway through Missoula

Original title: Generally revise the route of the Lewis and Clark Highway

Last action · May 23, 2025: (S) Died in ProcessSponsor: Ellie Boldman

Bill progressHistory & official text ↓
Introduced
Committee
Floor Vote
Passed
Law

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What This Bill Proposed

Montana SB 423 amends state law to modify the official path of the Lewis and Clark Highway through Missoula, prohibiting it from running between South Higgins Avenue and Arthur Avenue north of or along 6th South Street.

Why it matters

Changes the legal designation of a state highway route and directs local and state transportation officials to establish an alternate path avoiding certain residential neighborhoods.

Who It Would Have Affected

Groups the bill's text would have affected, as described in the record. Being affected is not a position for or against it.

Directly affected

Missoula County

Must be consulted by the department and board to determine an alternate highway route minimizing residential travel.

Directly affected

city of Missoula

Must be consulted to help determine an alternate highway route through the city.

Key Facts

  • The bill amends Section 60-1-202, MCA, regarding the Lewis and Clark highway route.
  • The highway may not run between south Higgins avenue and Arthur avenue north of, or along, 6th south street in Missoula.
  • The department and board must consult with Missoula County and the city of Missoula to determine an alternate route.
  • The alternate route is required to minimize distance traveled through primarily residential neighborhoods.
Show all 5 facts
  • The highway route extends from the Idaho state line west of Lolo Hot Springs through Lolo, Missoula, Garrison, Forsyth, and Baker to the North Dakota state line.

Frequently Asked Questions

What does Senate Bill 423 change?
It revises the designated route of the Lewis and Clark Highway specifically through the city of Missoula.
Where is the highway prohibited from running in Missoula?
It may not run between South Higgins Avenue and Arthur Avenue north of, or along, 6th South Street.
Who is responsible for determining the new alternate route?
The department and board must determine the alternate route in consultation with Missoula County and the city of Missoula.

What else do you want to know?

News Coverage

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Where This Stands

This bill did not become law - Died in committee.

Procedural history

19 actions
  1. May 23, 2025Senate
    (S) Died in Process
  2. Mar 12, 2025Senate
    (S) Missed Deadline for General Bill Transmittal
  3. Mar 1, 2025Senate
    (S) Fiscal Note Signed
  4. Feb 28, 2025SenateCommittee
    (S) Tabled in Committee
  5. Feb 28, 2025Senate
    (S) Hearing
  6. Feb 28, 2025Senate
    (S) Fiscal Note Unsigned
Show 13 earlier actions
  1. Feb 28, 2025Senate
    (S) Fiscal Note Received
  2. Feb 24, 2025Senate
    (S) Fiscal Note Requested
  3. Feb 24, 2025SenateCommittee
    (S) Referred to Committee
  4. Feb 24, 2025Senate
    (S) 1st Reading
  5. Feb 21, 2025SenateIntroduced
    (S) Introduced
  6. Feb 21, 2025House
    (LC) Draft Delivered to Requester
  7. Feb 17, 2025House
    (LC) Draft Ready for Delivery
  8. Feb 15, 2025House
    (LC) Draft in Assembly
  9. Feb 14, 2025House
    (LC) Draft in Final Drafter Review
  10. Feb 14, 2025House
    (LC) Draft in Input/Proofing
  11. Feb 12, 2025House
    (LC) Draft in Edit
  12. Feb 12, 2025House
    (LC) Draft in Legal Review
  13. Nov 23, 2024House
    (LC) Drafter Assigned

Version history

Only one version on file - nothing to compare yet. As later stages (committee substitute, engrossed, enrolled) are captured, the redline appears here.

View official text →

Lobbying Activity

No state lobbying filings in our records match this bill. Federal lobbying reports (LDA) cover Congress, so they are not listed on state bills.

Full breakdown

Who this bill affects and the strongest case for and against it, written only from the bill’s own text.

Sponsors

Ellie BoldmanSenate · District 47DemocraticPrimary sponsor

Connected Entities

Idaho, North Dakota, Lolo and 9 more
locationIdaho“State line reference”Map →
locationNorth Dakota“State line reference”Map →
locationLolo“Location along the route”Map →
locationBaker“Location along the route”Map →
otherLewis and Clark highway“The highway route being revised”Map →
locationForsyth“Location along the route”Map →
locationLolo Hot Springs“Location near the route”Map →
OrganizationMissoula County“Consulted for determining alternate route”Map →
locationMissoula“City where the route is being revised”Map →
locationGarrison“Location along the route”Map →
locationMontana“State where the highway is located”Map →
PersonE. Boldman“Introduced the bill”Map →

Sources

Open source document

bills.legmt.gov

Analysis Score

0–100
  • Significance20
    Lowered because this bill did not pass (its text scored 25)
  • Controversy10
    Intensity of disagreement among stakeholders
  • Entertainment2
    Compellingness for a non-policy-wonk reader
  • Buzz10
    Current news / social attention level

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