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Sauk County, WI Mobility & Curb Rules: Bike Lane Rules (2026)

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

Key Facts

Riding lane
Extreme right-hand lane, single file only
Barred areas
Boat launches, piers, docks, waterways
State trail pass
Required age 16+, valid through Dec. 31
Towing bikes
Prohibited; no holding onto moving vehicles
Forfeiture
$10 to $100 plus costs of action

Summary

Bicyclists in Sauk County parks must ride only in designated areas, yield to other park users, and stay single file in the right-hand lane without weaving or riding recklessly. Riders age 16 or older need a visible state trail pass on designated state trails, and towing or hitching rides on bikes is barred.

These county ordinances apply to unincorporated areas of Sauk County. Incorporated cities within the county may have their own rules that take precedence over county-level regulations.

(a)Rules and regulations. Riders of bicycles shall comply with the rules and regulations of other vehicles as stated in section 10.07 of this Code and Wis. Stats. §§ 346.77 through 346.82. In addition, thereto, shall be subject to the following regulations:(1)Bicycles are only allowed on designated areas.(2)Riders shall yield to all other park users.(3)Riders shall always proceed in the extreme right-hand lane of the driver, in single file only. Riding crosswise and curving back and forth are strictly prohibited. No rider shall ride recklessly in any manner. ... (b)State trail passes. A state trail pass is required for all people ages 16 or older biking, cross-country skiing, or inline skating on a state trail. A state trail pass is not required for walking. Annual trail passes are valid through December 31 of the year issued. All state trail passes must be visible when on a state trail.

Full Breakdown

Sec. 10.09 of the Sauk County Code sets the county's park-specific bicycle rules. Bicycles are only allowed on designated areas, and riders must comply with the same rules that apply to other vehicles under the chapter's vehicle regulations plus Wis. Stats. §§ 346.77 through 346.82. Riders must yield to all other park users, must always proceed in the extreme right-hand lane in single file, and may not ride crosswise, curve back and forth, or ride recklessly in any manner. A bicycle may not be towed by rope or otherwise, and no rider may hold on to a moving vehicle to be drawn along.

Bicycles are barred entirely from any boat launch, pier, dock or waterway within a park or parkway. Separately, Sec. 10.09(b) requires anyone age 16 or older who bikes, cross-country skis or inline skates on a state trail to carry a visible state trail pass; walking does not require a pass, and annual passes run through December 31 of the year issued. Because Sec. 10.09(a) cross-references the chapter's general vehicle rules, a cyclist in a Sauk County park is also bound by the posted speed limits, the ban on driving outside proper drives and parking areas, and the requirement to obey traffic control devices erected by the Department.

Violations & Fines

Violating the county's bicycle riding rules in a park, including riding outside designated areas, failing to ride single file in the right lane, or riding on a boat launch or pier, violates Sec. 10.09 and is enforceable under Sec. 10.16 by the Sauk County Sheriff's Department. A violator is subject to a forfeiture of not less than $10.00 nor more than $100.00 together with the costs of the action; riding a state trail without the required trail pass is a separate, additional violation.

Frequently Asked Questions

Do I need a permit to bike in a Sauk County park?
No general permit is required, but Sec. 10.09 confines bicycles to designated areas, requires single-file riding in the right-hand lane, and bars riding on boat launches, piers, docks or waterways within any Sauk County park or parkway.
Do I need a state trail pass to bike on a Sauk County trail?
If the trail is a designated state trail, yes. Sec. 10.09(b) requires anyone age 16 or older biking, cross-country skiing or inline skating there to carry a visible annual state trail pass, valid through December 31 of the year issued; walking does not require one.
Can I tow a trailer with my bike in a county park?
Sec. 10.09(a)(4) bars towing a bicycle by rope or otherwise and bars any rider from holding onto a moving vehicle to be drawn along, though it does not on its face address a standard attached bicycle trailer.

Sources & Official References

Other rules in Sauk County

All Sauk County rules

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