(a) No vehicle shall be driven on the left side of the roadway under the following conditions:
(1) When approaching or upon a curve or the crest of a grade in the highway where the driver's view is obstructed within such distance as to create a hazard in the event another vehicle might approach from the opposite direction;
(2) When approaching within 100 feet of or traversing any intersection or railroad grade crossing, unless otherwise indicated by official traffic-control devices;
(3) When the view is obstructed upon approaching within 100 feet of any bridge, viaduct or tunnel.
(b) The foregoing limitations shall not apply upon a one-way roadway, nor under the conditions described in § 4114(a)(2) of this title, nor to the driver of a vehicle turning left into or from an alley, private road, driveway or highway.
Structure Delaware Code
Subchapter III. Driving on Right Side of Roadway; Overtaking and Passing, etc.
§ 4114. Driving on right side of roadway; exceptions.
§ 4115. Passing vehicles proceeding in opposite directions.
§ 4116. Overtaking a vehicle or bicycle on the left.
§ 4117. When overtaking on the right is permitted.
§ 4118. Limitations on overtaking on the left.
§ 4119. Further limitations on driving to left of center of roadway.
§ 4120. No-passing zones; exceptions.
§ 4121. One-way roadways and rotary traffic islands.
§ 4122. Driving on roadways laned for traffic.
§ 4123. Following too closely.