Agenda - Public Works Committee - 01/20/2004

Home

Subd 7. A vision clearance triangle shall be established at each intersection comer in order to provide adequate site distance. The vision triangle shall be formed by creating a '.}hird leg which connects the ends of two legs which are in line with of face of the existing !curbs. On streets which have a stop condition the length of the leg shall be 25 feet from ithe nearest face of the curb on the cross street being approached and shall be 50 feet for istreets without stop conditions. The vision triangle shall also apply at alleys and at · hommercial driveways with the leg distance of 25 feet. The vision triangle shall be three ~dimensional and shall extend from 30 inches to nine feet above the top of curb. Where ~he xvording herein refers to horizontal measurement from the face of curb and no curb exists, the edge of pavement shall be used instead. Where the wording herein refers to ~ertical measurement from top of curb and no curb exists, the measurement shall begin · "six inches above the pavement. The vision clearance triangle shall contain no fence, listructure, earth bank wall other sight obstruction. The following are hedge, planting, or iexempted: utility poles, fire hydrants, traffic signals and signs, tress trimmed to the truck, !~and plant species of open growth habit that are not planted in the form of a hedge and ?hich are planted and trimmed as to leave an unobstructed view in all seasons. There ishall be no parking allowed along the curbs within the vision triangle. Construction of ~ew buildings or new additions to existing buildings that extend into the vision triangle !shall not be permitted. Existing buildings shall not be considered an obstruction under the ierms of this section. The city engineer may waive this provision where the natural icontour of the ground is such that there can be no cross visibility at the intersection. -4-