Draft chapter 63: Speed Regulations
§ 63.04 Special Speed Zones
The 2026 draft's § 63.04 beside the current code's § 63.04: removed words are struck through, added words underlined.
Comparison with a draft: not adopted. The archive holds no public hearing, ordinance or vote adopting the recodified Code through the October 20, 2026 meeting packet. Until one is adopted, every page here compares the consolidated code with a draft that can still change: the revised draft with the October 6 changes is not in the archive.
A comparison with the August 2026 draft recodification prepared by Iowa Codification for the City. The draft has not been adopted and can still change; the current code (unofficial compilation) governs until a recodified Code is adopted. Matches between sections are made by machine from the texts and are reviewed where uncertain.
Wording changed wording changed (80% same words)
Compared with the text of Ord. 2024-516, which amends the current section and is not yet consolidated here.
Notable changes
- New requirement: …streets or parts thereof. A. On Roberts Ferry Road, from 50 feet south of Ireland Ave. NW (Ridgeway Drive) to 500 feet south of the Railroad Tracks. 3. Special 30 miles per hour Speed Zones. A speed in excess of 30 miles per hour is unlawful on any of the following designated streets or parts thereof. A. On Oakdale Boulevard, from North Park Road to Roberts Ferry Road. 3. Special 35 miles per hour Speed…
- Text removed: …from the Clear Creek Bridge to 340th Street.
4. Special 30 miles per hour Speed Zones. A speed in excess of 30 miles per hour is unlawful on any of the following designated streets or parts thereof. A. On Oakdale Boulevard, from North Park Road to Roberts Ferry Road.5. Signs. The Public Works Department of the…
What changed
(Code of Iowa, Sec. 321.290)
1. Special 10 MPH Speed Zones. A speed in excess of 10
2. Special 25 MPH Speed Zones. A speed in excess of 25
A. On Roberts Ferry Road, from 50 feet south of Ireland Ave. NW (Ridgeway Drive) to 500 feet south of the Railroad Tracks.
3. Special 30 MPH Speed Zones. A speed in excess of 30 MPH is unlawful on any of the following designated streets or parts thereof.
A. On Oakdale Boulevard, from North Park Road to Roberts Ferry Road.
A. On Park Road, from Forevergreen Road southerly to 340th Street SW, except the designated
B. On North Park Road from Oakdale Boulevard to Forevergreen Road.
C. On Roberts Ferry Road from the exit ramp of
A. On Oakdale Boulevard, from North Park Road to Roberts Ferry Road.
6. U.S. Highway 6 (Marengo Road). The speed limit on U.S. Highway 6 (Marengo Road) is set by the
Word-level comparison of the current text with the draft's; spacing and paragraph breaks come from the documents' text. Footnotes are left out.
Current code
§ 63.04 Special Speed Zones
In accordance with requirements of the Iowa Department of Transportation, or whenever the Council shall determine upon the basis of an engineering and traffic investigation that any speed limit listed in Section 63.02 is greater or less than is reasonable or safe under the conditions found to exist at any intersection or other place or upon any part of the City street system, the Council shall determine and adopt by ordinance such higher or lower speed limit as it deems reasonable and safe at such location. The following special speed zones have been established:
(Code of Iowa, Sec. 321.290)
1. Special 10 MPH Speed Zones. A speed in excess of 10 miles per hour is unlawful on all alleys within the City.
2. Special 25 MPH Speed Zones. A speed in excess of 25 miles per hour is unlawful on any of the following designated streets or parts thereof.
A. On Roberts Ferry Road.
3. Special 35 MPH Speed Zones. A speed in excess of 35 miles per hour is unlawful on any of the following designated streets or parts thereof.
A. On Park Road, from Forevergreen Road southerly to 340th Street SW, except the designated School District zone along Park Road, which will have a speed zone of 25 miles per hour.
B. On Roberts Ferry Road from the exit ramp of Interstate I-80 westbound, north to the existing posted 25 miles per hour speed limit sign which is 15 feet south of the south entrance to the Clear Creek Mobile Home Park.
C. On North Park Road from Oakdale Boulevard to Forevergreen Road.
D. On Roberts Ferry Road southbound from the Clear Creek Bridge to 340th Street.
4. Special 30 MPH Speed Zones. A speed in excess of 30 miles per hour is unlawful on any of the following designated streets or parts thereof.
A. On Oakdale Boulevard, from North Park Road to Roberts Ferry Road.
5. Signs. The Public Works Department of the City of Tiffin will post speed limit signs consistent with the provisions of this section.
6. Highway 6 (Marengo Road). The speed limit on Highway 6 (Marengo Road) is set by the Iowa Department of Transportation.
2026 draft
§ 63.04 Special Speed Zones
In accordance with requirements of the State Department of Transportation, or whenever the Council shall determine upon the basis of an engineering and traffic investigation that any speed limit listed in Section 63.02 is greater or less than is reasonable or safe under the conditions found to exist at any intersection or other place or upon any part of the City street system, the Council shall determine and adopt by ordinance such higher or lower speed limit as it deems reasonable and safe at such location. The following special speed zones have been established:
(Code of Iowa, Sec. 321.290)
1. Special 10 MPH Speed Zones. A speed in excess of 10 MPH is unlawful on all alleys within the City.
2. Special 25 MPH Speed Zones. A speed in excess of 25 MPH is unlawful on any of the following designated streets or parts thereof.
A. On Roberts Ferry Road, from 50 feet south of Ireland Ave. NW (Ridgeway Drive) to 500 feet south of the Railroad Tracks.
3. Special 30 MPH Speed Zones. A speed in excess of 30 MPH is unlawful on any of the following designated streets or parts thereof.
A. On Oakdale Boulevard, from North Park Road to Roberts Ferry Road.
4. Special 35 MPH Speed Zones. A speed in excess of 35 MPH is unlawful on any of the following designated streets or parts thereof.
A. On Park Road, from Forevergreen Road southerly to 340th Street SW, except the designated school district zone along Park Road, which will have a speed zone of 25 MPH.
B. On North Park Road from Oakdale Boulevard to Forevergreen Road.
C. On Roberts Ferry Road from the exit ramp of Intersection I-80 west bound, north to the existing posted 25 MPH speed limit sign which is 15 feet south of the south entrance to the Clear Creek Mobile Home Park.
D. On Roberts Ferry Road southbound from the Clear Creek Bridge to 340th Street.
5. Signs. The Public Works Department of the City will post speed limit signs consistent with the provisions of this section.
6. U.S. Highway 6 (Marengo Road). The speed limit on U.S. Highway 6 (Marengo Road) is set by the State Department of Transportation.
Back to draft chapter 63 · All changes
Data last updated October 22, 2026. Built from the archive's documents; see how the data is built.