(A) Outdoor floodlighting by flood light projection above the horizontal plane is prohibited.
(B) All light fixtures that are required to be shielded shall be installed in such a manner that the shielding is effective as described in § 19.31.003, for fully shielded fixtures.
(C) All light fixtures, except streetlights, shall be located, aimed or shielded so as to minimize stray light trespassing across property boundaries.
(D) Search lights, laser source lights or any similar high-intensity light shall not be permitted, except, in emergencies, by police and/or fire personnel, or at their direction, or for purposes of gathering meteorological data.
(E) Class 1 lighting may continue only until 9:00 p.m. or for as long as the area is in active use. See Table 1 of this section, and § 19.31.003, for an explanation of and list of recognized uses for the different classes of lighting.
(F) Illumination of outdoor recreational facilities must conform to the shielding standards of Table 19.31.006(1) of this section.
(G) Multi-class lighting must either conform to the lamp-type and shielding requirements of the most restrictive class, as shown in Table 19.31.006(1) of this section, or conform to the time limitations of the least restrictive class, as shown in §§ 19.31.007, 19.31.008 and 19.31.009 of this chapter.
(H) External illumination for signs shall conform to the provisions of this chapter and Title 25 (Zoning Ordinance) of this code. In particular, the lighting shall be treated as Class 1 lighting and shall conform to the lamp source, shielding restrictions, and lumen limitations of Table 19.31.006(1) of this section and §§ 19.31.007, 19.31.008 and 19.31.009 of this chapter. All upward directed sign lighting is prohibited.
(I) On projects where an engineer or architect is required, the property owner shall verify in writing to the county that all outdoor lighting was installed in accordance with the approved plans.
(J) Service station canopy lighting. In addition to the calculations for lighting in Zones I, II and III, the following requirements apply to service station canopies:
(1) All luminaries mounted on the under surface of service station canopies shall be fully shielded and utilize flat glass or flat plastic (acrylic or polycarbonate) covers.
(2) The total light output used for illuminating service station canopies, defined as the sum of all under-canopy initial bare-lamp outputs in lumens, shall not exceed 40 lumens per square foot of canopy in Zones II and III, and shall not exceed 20 lumens per square foot in Zone I. All lighting mounted under the canopy, including but not limited to luminaires mounted on the lower surface of the canopy and auxiliary lighting within signage or panels over the pumps, is to be included toward the total.
(K) (1) Neon lighting is permitted, so long as lumen calculations from such lighting are included in the total lumen calculations for the site, required by this section. Lumens are calculated on a per foot basis, rather than per “fixture”. The lighting shall also be subject to the shielding requirements of this section, unless exempted by Table 19.31.006(1) of this section.
Lamp Type | Zone I | Zone II | Zone III |
COMMERCIAL USES* | |||
Class 1 lighting (color rendition): | |||
Low-pressure sodium above 2,000 lumens | F | F | F |
Others types – 2,000 lumens and greater | X | F | F |
All types below 2,000 lumens | F** | F | F |
Class 2 lighting (general illumination): | |||
Low-pressure sodium above 2,000 lumens | F | F | F |
Others types – 2,000 lumens and greater | X | X | X |
All types below 2,000 lumens | F** | F | F |
Class 3 lighting (decorative): | |||
Low-pressure sodium above 2,000 lumens | F | F | F |
Others types - 2,000 lumens and greater | X | F | F |
All types below 2,000 lumens | F** | A | A |
SINGLE FAMILY AND DUPLEX USE | |||
All types 1,000 lumens and greater | F | F | F |
All types less than 1,000 lumens | A | A | A |
Use Code: | |||
A = Unshielded lights allowed; shielding not required but highly recommended. (Unshielded lights are limited to a maximum of 5,500 lumens per net acre in all zones). | |||
F = Allowed, fully shielded | |||
X = Prohibited, except as noted. | |||
* Commercial uses include commercial, industrial, business park and multiple-family residential. | |||
** Non-LPS lighting in Zone I is limited to a maximum of 5,500 lumens per net acres. | |||
(2) Examples of lamp types of 2,000 lumens and below are (initial outputs of lamps, as specified by the manufacturer, on values to be considered):
(a) One hundred Watt Standard Incandescent (tungsten, halogen or quartz);
(b) Thirty Watt High Pressure Sodium;
(c) Thirty Watt Cool White T12 Fluorescent;
(d) Twenty-five Watt TB Fluorescent; and
(e) Eighteen Watt Low Pressure Sodium.
(1966 Code, § 32-6) (Ord. 748 § 1(part))