21 Del. C. § 4119: Further limitations on driving to left of center of roadway.

(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.