No vehicle shall, in overtaking and passing another vehicle or at any other time, be driven to the left side of the roadway under the following conditions:
 1. When approaching the crest of a grade or upon a curve in the highway where the driver‘s view along the highway is obstructed for a distance of approximately seven hundred feet.

Terms Used In Iowa Code 321.304

  • Department: means the state department of transportation. See Iowa Code 321H.2
  • Driver: means a person who operates a motor vehicle for the transportation of railroad workers in the motor vehicle on behalf of a railroad worker transportation company, whether the person is employed by the company for wages or drives for the company as an independent contractor. See Iowa Code 327F.39
  • following: when used by way of reference to a chapter or other part of a statute mean the next preceding or next following chapter or other part. See Iowa Code 4.1
  • highway: means the entire width between property lines of every way or place of whatever nature when any part thereof is open to the use of the public, as a matter of right, for purposes of vehicular travel, except in public areas in which the boundary shall be thirty-three feet each side of the center line of the roadway. See Iowa Code 321I.1
  • Roadway: means that portion of a highway improved, designed, or ordinarily used for vehicular travel. See Iowa Code 321I.1
  • Vehicle: means any vehicle as defined in chapter 321. See Iowa Code 321H.2
 2. When approaching within one hundred feet of any narrow bridge, viaduct, or tunnel, when so signposted, or when approaching within one hundred feet of or traversing any intersection or railroad grade crossing.
 3. Where official signs are in place directing that traffic keep to the right or a distinctive center line or off-center line is marked, which distinctive line also so directs traffic as declared in the sign manual adopted by the department of transportation.
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