Thornton, CO Trash & Recycling: Yard Waste Collection (2026)
Key Facts
- Trimming size limit
- 2 inches diameter maximum
- Container lid rule
- No more than 45-degree gap
- Dedicated yard-waste pickup
- None; goes with regular trash
- Large volume option
- Special collection at extra fee
- Burning
- Banned citywide without state permit
Summary
Thornton has no separate curbside yard-waste pickup; tree trimmings, hedge clippings, and similar plant debris go out with regular solid waste under strict prep rules. City Code Section 58-59(a) caps trimmings at two inches in diameter and requires them cut to fit the container without propping the lid past a 45-degree gap, and open burning of yard waste is separately banned citywide.
(a)All residential solid waste shall be drained of liquid prior to deposit for collection. All cans and bottles which have contained food shall be thoroughly rinsed and drained prior to deposit for collection. Tree trimmings not more than two inches in diameter, hedge clippings, and similar materials shall be cut to securely fit into the solid waste/recycling container so as not to cause the opening, between the level rim and the lid, of the container to be greater than a 45-degree angle, prior to placement for collection.
Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: Code of Ordinances: Supplement 65).
Full Breakdown
Section 58-59(a), in Chapter 58's precollection-practices provision, folds yard debris into the same rule that governs draining liquid from garbage and rinsing food cans: tree trimmings not more than two inches in diameter, hedge clippings, and similar materials must be cut to securely fit into the solid waste/recycling container so the opening between the level rim and lid does not exceed a 45-degree angle before placement for collection. Thornton runs no dedicated brush or leaf truck route under this section; trimmings and clippings that fit the two-inch limit go into the customer's regular container alongside other solid waste, subject to the 350-pound combined weight cap set in Section 58-60(d).
Customers who generate more yard debris than a standard container holds can arrange a special collection under Section 58-63(h), billed at the special-collection rate the city council sets by ordinance, and the city periodically runs a fall leaf collection program referenced in Section 58-63(b) as one of its special programs. Separately, Section 22-96 bars burning yard waste at all: it is unlawful to burn rubbish, wastepaper, solid waste, refuse, yard waste, or other flammable materials anywhere in the city, including on one's own property, without first obtaining an emissions permit issued by the state, so residents cannot dispose of branches or leaves by burning them in a yard or fire pit.
Violations & Fines
Setting out tree trimmings or clippings thicker than two inches, or piled so the container lid cannot close within the 45-degree limit, violates Section 58-59(a) and is enforced under Section 58-58's Section 1-8(a) general penalty. Burning yard waste anywhere in the city without a state emissions permit violates Section 22-96 and is a separate offense from the collection rules.
Frequently Asked Questions
Can I put tree branches out with my regular trash in Thornton?
Does Thornton pick up bagged leaves or brush separately?
Can I burn leaves or branches in my yard in Thornton?
Sources & Official References
Other rules in Thornton
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Yard Waste Collection in Nearby Cities
How other cities in Adams County handle yard waste collection.