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(7)Height. Off-premises digital billboard signs shall not exceed 50 feet in height as measured from the <br /> established grade of the site upon which the off-premises signs and digital billboards is located. <br /> (8)Conditional use. Off-premises digital billboard signs shall be processed in accordance with the <br /> procedures established for conditional use permits in section 117-51, with the exception of recording the <br /> home occupation permit should it be approved by city council. <br /> (c)Off-premises digital billboard sign overlay district performance standards:The off-premises digital billboard sign <br /> overlay district is hereby established as a separate zoning district within the city.Within the off-premises digital <br /> billboard sign overlay district,off-premises digital billboard signs are permitted subject to the following conditions: <br /> (1) No off-premises digital billboard signs shall be erected that, by reason of position,shape, movement, <br /> or color, interferes with the proper functioning of a traffic signal or which constitutes a traffic hazard. <br /> (2)Off-premises digital billboard signs shall meet all required principal structure setbacks of the <br /> underlying zoning district. <br /> (3)Off-premises digital billboard signs must have an architecturally enhanced base. <br /> (4)Off-premises digital billboard signs must have minimum display duration of eight(8)seconds. Such <br /> display shall contain static messages only;change from one static message to another shall be <br /> instantaneous without any special effects,through dissolve or fade transitions,or with the use of another <br /> subtle transition technique that does not have the appearance of moving text or images. <br /> (5)Off-premises digital billboard signs must be rectangular in shape and all messages must be contained <br /> within the off-premises digital billboard frame. <br /> (6)All off-premises digital billboard signs shall have ambient light monitors installed as part of the off- <br /> premises digital billboard sign and shall,at all times,allow such monitors to automatically adjust the <br /> brightness level of the electronic sign based on light conditions. <br /> (7)Off-premises digital billboard signs shall meet the following brightness standards: <br /> a. Off-premises digital billboard signs shall not exceed 7,500 nits(candelas per square meter) <br /> between the hours of civil sunrise and civil sunset and shall not exceed 500 nits(candelas per <br /> square meter) between the hours of civil sunset and civil sunrise as measured from the face of <br /> the sign.The light level shall not exceed 0.3-foot candles above ambient light as measured from a <br /> pre-set distance depending on sign size. Measuring distance shall be determined using the <br /> following equation:the square root of the message center sign area multiplied by 100. Example: <br /> 12 square foot sign V(12 x 100)=34.6 feet measuring distance. <br /> (8)Off-premises digital billboard signs shall have a fully functional monitoring off switch system that shuts <br /> the dynamic display off-premises sign off when the display deteriorates, in any fashion,five percent or <br /> greater until the dynamic display sign has been repaired to its fully functional factory specifications. <br /> (9)Off-premises billboard signs must be part of the state of Minnesota's public safety alert system. <br /> (10)Applicants for an off-premises digital billboard signs permit shall enter into an agreement with the <br /> city to provide the city no less than 20 hours(provided in 9,000 eight-second spots) per month per <br /> dynamic display off-premises sign face in the city for community and public service messages at such <br /> times as shall be reasonably determined by the city.This agreement must be approved by the city council <br /> before a permit for the construction or conversion of an off-premises signs and digital billboard may be <br /> issued by the building official. <br /> Created: 2021-07-01 14:42:48 [EST] <br /> (Supp. No. 10,Update 2) <br /> Page 6 of 15 <br />