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Boone County, MO Sidewalk & Pedestrian Rules: Obstruction Rules (2026)

Significant Restrictions
Compiled from the official code textEditor Martyn O'NeillLast verified September 2026

Key Facts

Governing section
Road Regs App. A § 1.5
Notice to remove
24 hours to 30 days
Enforcement
Public Works removal + billing
Sight-line rule
No obstruction near curb/sidewalk

Summary

Boone County bans mailboxes, structures, or objects in the road right-of-way that interfere with traffic safety or road maintenance, and can order removal on short notice.

City-specific rules exist: Columbia has its own obstruction rules rules that differ from Boone County's county-level regulations. If you live in Columbia, check the city-specific page instead.

No mailbox or newspaper delivery box (hereafter referred to as mailbox) or structures / objects will be permitted within the Boone County right-of-way which interferes with the safety of the traveling public or the function, maintenance, or operation of the roadway system.

1.5.1 Mailbox Location: No mailbox shall be located in a place where vehicular access to it is prohibited by law or regulation. Mailboxes shall be located on the right-hand side of the roadway in the direction of the delivery route. The bottom of the box shall be set at an elevation established by the U.S. Postal Service, usually between 42" and 48" above the roadway surface. The roadside face of the box shall be offset from the edge of the traveled way or face of curb, a minimum distance of 8" and shall not exceed 12". Notwithstanding these requirements the location and construction of mailboxes shall conform to the rules and regulations of the U.S. Postal Service. A mailbox installation that does not conform to the previsions of the regulation is an unauthorized encroachment under

View official code

Official source re-checked September 7, 2026: the cited page had not changed since it was quoted.

Full Breakdown

Boone County's road design standards prohibit any mailbox, newspaper box, structure, or object within the county right-of-way that interferes with the safety of the traveling public or the function, maintenance, or operation of the roadway system (§ 1.5, Appendix A). A nonconforming installation is an unlawful encroachment; Public Works can give the owner as little as 24 hours' and as much as 30 days' notice to remove it, then remove it themselves if the owner doesn't comply (§ 1.5.3). Sight-obstructing structures, objects, or vegetation are barred outright near curbs, sidewalks, and roadway edges.

Violations & Fines

An obstruction that blocks sight distance or interferes with road safety or maintenance is an unlawful encroachment; Public Works can order removal within 24 hours to 30 days, then remove it and bill the owner.

Frequently Asked Questions

Can I put a fence or landscaping in the road right-of-way?
Only if it doesn't interfere with traffic safety or road maintenance. A nonconforming structure or object is an unlawful encroachment under § 1.5 and can be ordered removed.
How much notice does Boone County give before removing an obstruction?
Not less than 24 hours and not more than 30 days, per § 1.5.3, unless the hazard is deemed an emergency.

Sources & Official References

Other rules in Boone County

All Boone County rules

Compare Boone County to another location·View the Missouri sidewalk & pedestrian rules overview

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