A clear vision area shall be maintained on each corner of property adjacent to the intersection of two streets, a street and a railroad, and on driveways providing vehicular access to a public way, excluding alleys.
On all corner lots, no vehicle, fence, wall, hedge, or other planting or structure (temporary or permanent) shall be parked, erected, planted, placed, located or maintained above 30 inches in height measured from the top of the curb or, where no curb exists, from the established street center line grade of the intersecting streets, so as to impede visibility within the sight triangle.
Driveways providing vehicular access to a public way shall have a minimum vision clearance area formed by the intersection of the driveway centerline, the street right-of-way line, and a straight line joining said lines through points 20 ft. from their intersection. No obstruction over 30 inches in height that has a cross section over twelve inches shall be permitted in such areas.
A clear vision area shall consist of a triangular area two sides of which are lot lines for a distance specified in this regulation, or, where the lot lines have rounded corners, the lot lines extended in a straight line to a point of intersection and so measure, and the third side of which is a line across the corner of the lot joining the non-intersecting ends of the other two sides.
The foregoing provisions shall not apply to the following:
A public utility poles, signal poles, light pole, or other utility appurtenance.
A tree trimmed (to the trunk) to a line at least 8 ft. above the level of the intersection.
A plant species of open growth habit that is not planted in the form of a hedge and which is so planted and trimmed to leave at all seasons a clear and unobstructed cross view.
A supporting member or appurtenance to a permanent building lawfully existing on the date this code is adopted.
An official warning sign or signal.
A place where the natural contour of the ground is such that there can be no cross visibility at the intersection.
A sign mounted 10 ft. or more above the ground with supports that do not encroach into the clear vision area.
A signalized intersection.
Buildings and uses in existence at time of passage of this code are considered nonconforming and may continue as specified in Chapter 17.08 - Nonconforming Development.
Any obstruction maintained in violation of this section shall be abated pursuant to Chapter 17.06 - Enforcement.
Clear Vision Area Diagram (17 KB) 
