18.55.030 General requirements.
A. Shielding Required. Except as otherwise exempt, all outdoor lighting fixtures shall be constructed with shielding on all sides. The outdoor light source (bulb or element) shall not be visible at or beyond the property line.
Figure 18.55.030. Examples of light fixtures with shielding on all sides
B. Fixture Heights. Lighting fixtures shall not exceed the following maximum heights:
|
Outdoor Lighting Location |
Fixture Height (Maximum as measured to the top of the fixture from grade) |
|---|---|
|
Within 50' of a residential zoning district |
16 ft |
|
Surface Parking Area C-1, C-3, M-1, M-2 All other districts |
30 ft 24 ft |
C. Photometric Plan Requirements. A photometric plan shall be prepared and submitted for review and approval when required under ACC 18.55.020, Applicability. The required elements of the plan shall be specified in application forms to be provided by the city. The photometric plan will be reviewed to ensure compliance with the provisions in this chapter.
D. Level of Illumination.
1. Parking lots, driveways, and trash enclosures/areas shall be illuminated with a minimum maintained one foot-candle of light and an average not to exceed four foot-candles of light.
2. Pedestrian walkways shall be illuminated with a minimum maintained one-half foot-candle of light and an average not to exceed two foot-candles of light.
3. In order to minimize light spillage on abutting residential property, illumination measured at the nearest residential structure or rear yard setback line shall not exceed one-tenth foot-candle.
E. Accent Lighting. Lighting used to accent architectural features, landscaping or art is permitted to be directed upward; provided, that the fixture shall be located, aimed, or shielded to minimize light spill. No permit is required for this type of lighting.
F. Periods of Illumination.
1. All outdoor lighting systems shall be equipped with automatic switches conforming to the requirements of Section 1513.6.2 of the Washington Energy Code.
2. The use of sensor technologies, timers or other means to activate lighting during times when it will be needed is encouraged to conserve energy, provide safety and promote compatibility between different land uses. Lower lighting levels at off-peak times are encouraged as a safety measure.
3. However, outdoor lights may remain on during the required off hours when:
a. Illuminating flags representing country, state, or other civic entity;
b. Functioning as security lighting (e.g., illuminating a pathway, building entry, etc.);
c. Associated with special events, etc. (Ord. 6885 § 1 (Exh. A), 2022; Ord. 6390 § 1, 2011.)