Iowa Code

Iowa Code § 321.366 (2026)

Acts prohibited on fully controlled-access facilities

✓ current as of July 2026

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1. It is unlawful for a person, except a person operating highway maintenance equipment or an authorized emergency vehicle, to do any of the following on a fully controlled-access facility:

a. Drive a vehicle over, upon, or across a curb, central dividing section, or other separation or dividing line.

b. Make a left turn or a semicircular or U-turn at a maintenance cross-over where an official sign prohibits the turn.

c. Drive a vehicle except in the proper lane provided for that purpose and in the proper direction and to the right of the central dividing curb, separation, section, or line.

d. Drive a vehicle into the facility from a local service road.

e. Stop, park, or leave standing a vehicle, whether attended or unattended, upon the paved portion.

f. Stop, park, or leave standing a vehicle, whether attended or unattended, upon the shoulders, or the right-of-way except at designated rest areas or in case of an emergency or other dire necessity.

g. Ride a bicycle or use a pedestrian conveyance, or be a pedestrian, anywhere on a fully controlled-access facility.

2. For the purpose of this section, “fully controlled-access facility” is a highway which gives preference to through traffic by providing access connections at interchanges with selected public roads only and by prohibiting crossings at grade or direct access at driveway connections.

3. Violations of this section are punishable as a scheduled violation under section 805.8A, subsection 6. [C58, 62, §306A.9; C66, 71, 73, 75, 77, 79, 81, §321.366] 84 Acts, ch 1022, §8; 84 Acts, ch 1219, §27; 2000 Acts, ch 1203, §14; 2001 Acts, ch 137, §5; 2010 Acts, ch 1061, §116; 2010 Acts, ch 1190, §49; 2021 Acts, ch 183, §50, 52; 2024 Acts, ch 1137, §6 Referred to in §321.210, 805.8A(6)(y) \n

Notes of Decisions

Cited in 4 cases, 1974–2019 · leading case: Loretta J. Zimmer, Adm'x for the Est. of Gary E. Zimmer v. Miller Trucking Co., Inc. Dean Leroy Crestwell & J & M 78/1 Ltd., 743 F.2d 601 (8th Cir. 1984).

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Loretta J. Zimmer, Adm'x for the Est. of Gary E. Zimmer v. Miller Trucking Co., Inc. Dean Leroy Crestwell & J & M 78/1 Ltd., 743 F.2d 601 (8th Cir. 1984). · cites it 2× “” Officer Baudler also noted in his report that a citation was issued to Crestwell for a violation of Iowa Code § 321.366 (5) (Supp. 1984), which provides in part: “It is unlawful for any person .”

State v. Pospishel, 218 N.W.2d 602 (Iowa 1974). · cites it 2× “Pospishel, guilty of driving a vehicle (1) over the central dividing section and (2) in the wrong direction, both on a controlled-access facility, in violation of The Code 1971, Section 321.366. From judgments entered thereon defendant appeals.”

State of Iowa v. Hector Martinez Lobo (Iowa Ct. App. 2019). · cites it 4× “”; section 321.366(1)(a), which states, “It is unlawful for a person .”

State of Iowa v. Victoria Lynn Sellers (Iowa Ct. App. 2015). · cites it 4× “Sellers argues she did not violate this provision because the road in question was not a fully controlled-access facility, and section 321.366 therefore has no application to the facts of this case.”

— Iowa Code § 321.366(1)(a) — 1 case

State of Iowa v. Hector Martinez Lobo (Iowa Ct. App. 2019). “”; section 321.366(1)(a), which states, “It is unlawful for a person .”

— Iowa Code § 321.366(1)(c) — 1 case

State of Iowa v. Hector Martinez Lobo (Iowa Ct. App. 2019). “”; section 321.366(1)(a), which states, “It is unlawful for a person .”

— Iowa Code § 321.366(1)(f) — 1 case

State of Iowa v. Victoria Lynn Sellers (Iowa Ct. App. 2015). “Sellers argues she did not violate this provision because the road in question was not a fully controlled-access facility, and section 321.366 therefore has no application to the facts of this case.”

Annotations are extracted automatically from the opinions in the Syfert caselaw corpus and ranked by authority, recency, and treatment. Dots show Syfertize treatment of the citing case itself.