A. General:
1. Exterior lighting design shall provide a cohesive theme for the community, neighborhood or project and consider the aesthetics, color, photometric performance, glare and light trespass of exterior lighting in the lighting design. Lighting types to be considered include, but are not limited to, street lighting, parking lot lighting, building exterior lighting, landscape lighting, plaza, walkway and trail lighting, and sports field illumination.
2. All exterior lighting, including sports and recreational lighting fixtures, shall provide acceptable qualities and quantities of illumination for its function and minimize off site glare and light trespass. Any lights used to illuminate a site shall be arranged to reflect light away from the adjoining property.
3. Lighting design shall promote dark sky principles which seek to minimize light pollution and degradation of the nighttime visual environment by incorporating lighting practices that minimize the amount and area of illumination. Such practices include:
a. Providing lighting fixtures with lamp wattages designed for the minimum level required by the use.
b. Providing energy efficient light sources.
c. Minimizing light trespass and glare by aiming fixtures downward and shining light only where it is needed and providing appropriate shielding as necessary to ensure that little or no unwanted light falls directly onto adjacent property.
d. Minimizing the duration of illumination of certain light sources (sports fields and court lighting) by having lights out as long as practical.
B. Street Lighting:
1. The master developer or subdivision developer shall install streetlights at locations described in subsection B4 of this section and as approved by the administrator. After installation and acceptance by the administrator, the owners' association shall pay the cost of maintenance and power and assume ownership of the streetlights.
2. Streetlights along public streets in Spring Valley shall consist of two (2) types as shown on exhibit 3-EE of this section:
a. Type A streetlights shall be used along principal and minor arterial roadways to emphasize the importance of such roadways.
b. Type B streetlights shall be used on collector and local streets.
c. Either type A or type B streetlights shall be used on urban streets depending on whether they are arterial, collector or local streets. Private streets may contain different streetlights than the type B light, but they shall be appropriate to the character of the neighborhood or project and shall not be higher than the Spring Valley type B streetlight standard.
d. Type A and B streetlights shall be in accordance with the examples shown on exhibit A and consist of the following components as shown on the manufacturers' cut sheets at the end of this section:
(1) Type A pole: Ameron concrete wood grained pole, square straight aluminum pole with Bella Vista angle shade, or approved equal, with a pole height of nineteen feet six inches to twenty nine feet four inches (19'6" - 29'4").
(2) Type B pole: Ameron concrete wood grained pole, square straight aluminum pole with Bella Vista angle shade, or approved equal, with pole height of fourteen feet seven inches to nineteen feet six inches (14'7" - 19'6").
(3) Luminaire: Gallery 1970-S FG BF or approved equal.
(4) Lamps: LED (2,700 Kelvin +/- 275 Kelvin) or metal halide (320 watts maximum) but shall be consistent in their application within each roadway type.
3. Luminaires shall conform to Illuminating Engineering Society Of North America (IESNA) standards for street lighting based on roadway classification and approval by the city.
4. Streetlights shall be generally placed at intersections, at the end of cul-de-sacs and other locations as necessary and subject to city approval to provide for roadway and neighborhood safety. Streetlight spacing between intersections shall be as follows:
(1) Type A streetlight: One thousand feet (1,000') maximum or as otherwise determined by the city.
(2) Type B streetlight: One thousand three hundred feet (1,300') maximum or as otherwise determined by the city.
C. Parking Area Lighting:
1. All parking areas shall be illuminated in accordance with the provisions of this subsection.
2. Parking area lights for all parking areas in Spring Valley shall be the type B streetlight, or equal, with single or double mast arms.
3. All lights used to illuminate a parking area shall be arranged to reflect the light away from the adjoining property.
4. All parking area lighting shall direct all light downward and the light shall not trespass more than 0.5 foot-candle, as measured at ten feet (10') within the property line of any residentially zoned parcel or land or parcel of land used for residential purposes. Luminaires shall not provide light above the zero azimuth.
5. Light pole fixtures shall have a maximum height of:
a. Thirty feet (30') for parking lots with less than five hundred (500) spaces;
b. Thirty five feet (35') for parking lots with more than five hundred (500) spaces;
c. Twenty five feet (25') for any pole within fifty feet (50') of a property line of any residentially zoned parcel of land or parcel of land used for residential purposes.
6. LEDs (2,700 Kelvin +/- 275 Kelvin) and metal halide (320 watt maximum) shall be the only type of parking area lighting permitted. Lamp type shall be consistent throughout the parking area.
7. A photometric plan shall be reviewed and approved by the administrator prior to issuance of a building/zoning permit.
D. Pathway/Trail Lighting:
1. Pathway/trail lighting shall consist of two (2) types: pole lights and bollard lights. Pole lights are identical to parking area lights and are located at trailheads, pathway/trail entries and intersections and other focal points, such as seating areas. Bollard lights shall be located along the paved section of the Big Gulch regional trail. Bollard lights shall be a concrete rusted finish pole, or equal, as shown in exhibit 3-EE of this section. Lamps shall be LED (2,700 Kelvin +/- 275 Kelvin) or an approved equal. All lamps shall be consistent in their application within each use area.
E. Sign Lighting:
1. Sign lighting shall be in accordance with the requirements in the signage regulations section.
F. Sports Lighting:
1. General Requirements: All exterior sports and recreational lighting installations shall require a conditional use permit and comply with applicable city codes and ordinances. Photometric calculations by a licensed electrical engineer are required in all applications. The maintained average level of horizontal illuminance at grade level at the property line shall not exceed one foot-candle.
2. Mounting Height: Sports lighting fixture mounting heights shall comply with IESNA RP-6-01, "Recommended Practice For Sports And Recreational Area Lighting".
3. Lamps: Lamps shall be LED (4,000 Kelvin +/- 275 Kelvin), metal halide, or approved equal as technologies advance.
4. Sports Courts: Lighting for sports courts (tennis courts, basketball courts and similar uses) shall comply with the following criteria:
a. Luminaires shall be square cutoff fixtures.
5. Field Sports: Lighting for baseball, softball, football and soccer fields shall be considered sports class IV as defined by IESNA standards and shall be fully shielded and comply with all requirements regarding light spill and glare.
a. Pole heights shall be determined by the manufacturer's recommended luminaire mounting height.
b. Poles shall be finished to match the luminaires or may be zinc galvanized.
EXHIBIT 3-EE
COMMUNITY LIGHTING EXAMPLES
(Ord. 710, 1-14-2014; amd. Ord. 889, 1-10-2022)