(A) The city shall determine the appropriate applications, development permits, and the like that will require conformance with this chapter.
(B) Any fixture having a total light emission exceeding 1,500 lumens shall be a fully shielded light fixture that:
(1) Confines the light so that it falls entirely on a wall or sign or confines the light within the property and entirely below a horizontal plane at the lowest point of the fixture at which light is emitted. (See Figure A); and
(2) Prevents a line of sight from any point off the property on which the fixture is situated to a light source.
(C)
Streetlights installed, repaired, or replaced on and after the effective date shall be fully shielded fixtures to limit light trespass (see Figure A) and shall have a correlated color temperature of 3,000 Kelvin or less with a minimum Color Rendering Index (CRI) of 70. City streetlights installed before the effective date of this chapter shall be brought into compliance with the requirements of this chapter within five years after the effective date of this chapter, including but not limited to the installation of fully shielded fixtures to limit light trespass (see Figure A) and having a correlated color temperature of 3,000 Kelvin or less with a minimum CRI of 70. Four types of fixture specifications are permitted as replacement streetlight fixtures, as shown in Exhibit “A” to Ord. 230808A, a copy of which is available in the City Secretary’s office.
(D) All non-residential outdoor lighting, except as otherwise specifically permitted by this chapter, shall be fully shielded fixtures. Where fixtures are affixed to canopies or soffits or similarly undermounted on a structure, the fixture shall be flush mounted or side shielded. The luminous elements of the fixture shall not be visible from any residential property and the fixture shall have a correlated color temperature of 3,000 Kelvin or less with a minimum CRI of 80. See Figure B for examples of unacceptable and acceptable light fixtures. See Figure A for shielding illustration.
(E) Metering equipment and methods of measurement.
(1) Outdoor lighting levels shall be measured in footcandles with a direct reading portable light meter with a color and cosine corrected sensor with multiple scales.
(2) Readings shall be taken in both the horizontal plane and vertical plane.
(3) Readings shall be taken when visibility is six miles or greater.
(4) Readings shall be taken at least one hour after sunset or one hour prior to sunrise.
(5) For the horizontal plane, the meter sensor shall be mounted or held not more than six inches above ground level in a horizontal position.
(6) For the vertical plane, the meter sensor shall be mounted or held at least five feet above ground level in a vertical position, measurements made perpendicular to the property line and facing the outdoor lighting in question.
(F) The aggregate total outdoor lighting on any non-residential property shall not exceed 65,000 lumens per net acre of parking, pedestrian ways and fire lanes, unless approved in writing by the Building Official.
(G) Light is presumed to be unreasonable and declared a light nuisance if the illumination in any plane is in excess of an average of 1.5 FC in areas of parking, pedestrian ways and fire lanes. The maximum outdoor illuminance on the subject property shall not exceed five FC at any point, except that under canopies (such as service stations) illuminance shall not exceed ten FC.
(H) Limitations on neighboring property. The limit of illumination on neighboring property from one establishment shall be based on the zoning or public use of the neighboring property. Maximum FC at the neighboring property line shall not exceed:
(1) Single-family residential districts: 0.1 FC;
(2) Multiple-family district: 0.5 FC;
(3) Agricultural district: 0.1 FC;
(4) Nonresidential districts: 1.5 FC;
(5) Lake Edge Zoning District: 0.1 FC; and
(6) Public areas including right-of-way: 0.5 FC.
(I) Maximum height of light poles, light standards, and flagpoles. Light poles, light standards, and flagpoles installed after the effective date of this chapter shall not exceed 20 feet in height. In areas where height is regulated by another section of the Code of Ordinances, the most restrictive regulation shall be applied. Roof mounted light standards and light poles shall not exceed the maximum height allowed in the zoning district. For instance, if the maximum height allowed in the zoning district is 30 feet, the height of the building plus the height of the roof mounted pole may not exceed 30 feet.
(J) All existing and/or new non-residential outdoor lightning shall not cause light trespass and shall protect properties from glare and excessive lighting. Non-residential outdoor lighting shall be sufficiently shielded and aimed such that spillage of light onto adjacent properties is prevented and glare from the light emitting and/or reflecting parts of a luminaire is not visible from an adjacent property.
(K) Outdoor lighting at public and private outdoor recreational facilities, including but not limited to playing fields, arenas, tracks, neighborhood amenity centers, and swimming pools shall be fully shielded fixtures and the luminous elements of the fixture shall not be visible from any adjacent residential property and comply with all the standards in this chapter. Underwater lighting of swimming pools shall be exempt from this requirement. See Figure B.
(Ord. 220712A, passed 7-12-2022; Ord.230808A, passed 8-8-2023)