Colusa County, CA Parking Rules: Commercial & Oversized Vehicles (2026)
Key Facts
- Large Vehicle Parking
- Over 12,000 lb GVW barred on signed streets (Sec. 12A-34)
- Unpaved Road Weight Cap
- 16,000 lb gross (Sec. 12-24)
- Partially Improved Defined
- Surface under 4 in. hard material (Sec. 12-23)
- Overweight Permit
- Road commissioner may issue (Sec. 12-26)
- State Authority
- CA Vehicle Code Sec. 22507.5
- Private-Property Storage
- Barred in required parking spaces (Zoning 44-3.20)
Summary
Unincorporated Colusa County bars trucks and trailer combinations over 12,000 lb GVW from streets signed 'no parking,' caps gross weight on unpaved county highways at 16,000 lb, and relies on California Vehicle Code authority for oversized-vehicle parking limits.
As used in this article, a "partially improved county highway" is defined as every public county highway excepting a highway paved with cement concrete or asphalt, concrete, or a highway with a roadway of hard surface not less than four inches thick made up of a mixture of rock, sand or gravel bound together by an artificial binder other than natural soil.
Official source re-checked September 8, 2026: no newer edition of the code had been published (publisher’s edition: current through Ordinance 850, passed April 7, 2026).
Full Breakdown
Colusa County's principal oversized-vehicle parking rule is Section 12A-34, which prohibits parking any truck, truck-tractor, trailer, semitrailer, or combination unit with a capacity exceeding 12,000 pounds (six tons) gross vehicle weight on any street signed 'no parking' by board resolution; the road commissioner posts the affected streets (Section 12A-34(c)). For road use rather than parking, Section 12-24 caps gross weight (including load) at 16,000 pounds on a 'partially improved county highway', defined in Section 12-23 as any public county highway other than one paved with concrete, asphalt, or a hard surface at least four inches thick, with axle limits of 6,000 lb (single tires) and 10,000 lb (dual tires); the road commissioner may issue overweight movement permits under Sections 12-25 and 12-26. 20) bars storing oversized vehicles, trailers, or campers in required parking spaces.
Violations & Fines
A street-parking violation under Section 12A-34 is enforced by the Sheriff and CHP with civil penalties by board resolution (Sections 12A-38, 12A-39). A road weight-limit violation under Section 12-24 is a misdemeanor; under Section 4-12 a misdemeanor without a specific penalty is punishable by up to $500 and/or six months in jail, each day a separate offense.
Frequently Asked Questions
Where can I park an oversized truck or trailer in unincorporated Colusa County?
Is there a weight limit for driving oversized vehicles on county roads?
Sources & Official References
Other rules in Colusa County
California rules heatmap·Compare Colusa County to another location·View the California parking rules overview
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