Chapter 63

CHAPTER 63

SPEED REGULATIONS

63.01 General
63.02 State Code Speed Limits
63.03 Parks, Cemeteries and Parking Lots
63.04 Special Speed Zones
63.05 Minimum Speed

63.01 GENERAL. Every driver of a motor vehicle on a street shall drive the same at a careful and prudent speed not greater than nor less than is reasonable and proper, having due regard to the traffic, surface and width of the street and of any other conditions then existing, and no person shall drive a vehicle on any street at a speed greater than will permit said driver to bring it to a stop within the assured clear distance ahead, such driver having the right to assume, however, that all persons using said street will observe the law.
(Code of Iowa, Sec. 321.285)

63.02 STATE CODE SPEED LIMITS. The following speed limits are established in Section 321.285 of the Code of Iowa and any speed in excess thereof is unlawful unless specifically designated otherwise in this chapter as a special speed zone.
1. Business District – twenty (20) miles per hour.
2. Residence or School District – twenty-five (25) miles per hour.
3. Suburban District – forty-five (45) miles per hour.

63.03 PARKS, CEMETERIES AND PARKING LOTS. A speed in excess of fifteen (15) miles per hour in any public park, cemetery or parking lot, unless specifically designated otherwise in this chapter, is unlawful.
(Code of Iowa, Sec. 321.236[5])

63.04 SPECIAL SPEED ZONES. In accordance with requirements of the Iowa 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)

Special 30 MPH Speed Zones. A speed in excess of thirty (30) miles per hour is unlawful on any of the following designated streets or parts thereof.
- A. Avenue E from 11th Street south to the railroad tracks.
Special 35 MPH Speed Zones. A speed in excess of thirty-five (35) miles per hour is unlawful on any of the following designated streets or parts thereof.
- A. Highway 10 (10th Street) from Avenue P to Avenue L.
- B. Highway 10 (Avenue E) from 21st Street to 11th Street.
- C. 10th Street from the east side of the Big Sioux River Bridge to Avenue A.
- D. County Road K-18 from 16th Street to 12th Street.
- E. 23rd Street from Avenue L to Avenue E.
- F. County Road K-18 beginning 1250 feet south of the south edge of pavement of Highway 10 and extending southward for a distance of 1250 feet.

63.05 MINIMUM SPEED. A person shall not drive a motor vehicle at such a slow speed as to impede or block the normal and reasonable movement of traffic, except when reduced speed is necessary for safe operation, or in compliance with law.
(Code of Iowa, Sec. 321.294)