Sec. 25-504
Extracted standards
11 individual requirements pulled out of this section’s prose, each with the sentence it came from.
Lighting
- Automatic timing devices
The zoning administrator may require that lighting be controlled by automatic timing devices to extinguish light sources during specific periods to mitigate the adverse impacts on adjacent properties.
- Underground electrical feeds
Electrical feeds to lighting standards shall be run underground, not overhead.
- Lighting maintenance
Lighting fixtures shall be maintained by the landowner so as to always meet the requirements of this chapter.
- Maximum canopy lighting output40 lumens/sqftsq ftSquare feet. An acre is 43,560 sq ft; a typical suburban lot is 7,000–10,000.
For auto/truck service stations and convenience retail uses, lighting in island canopy ceilings shall be recessed, full cut-off fixtures with flat lenses and shall not exceed forty (40) initial output lumens per square foot of canopy.
- Maximum illumination onto non-residential property0.5 fc
The amount of illumination projected onto a non-residential use from another property shall not exceed 0.5 vertical foot-candles at a height of five (5) feet at the property line.
- Maximum illumination onto residential property0.2 fc
The amount of illumination projected onto a residential use from another property shall not exceed 0.2 vertical foot-candles at a height of five (5) feet at the property line.
- Maximum light fixture heightMaximum heightThe tallest a building may be, given in feet, in storeys, or both — whichever binds first.25 ft
Light fixtures, including mounting base, shall not exceed twenty-five (25) feet in height above finished grade unless the zoning administrator determines that an increase in height, not to exceed ten (10) additional feet, would reduce the total number of light fixtures required for the site and still meet the intent of the chapter.
- Searchlights prohibitedProhibitedNot allowed in the district at all, short of rezoning or a variance.
The operation of searchlights for advertising purposes shall be prohibited.
- Sign lighting shielding
Illuminated signs shall have an indirect lighting source or shielded source. Fixtures used for architectural lighting, such as facade, feature and landscape lighting, shall be aimed or directed so as to preclude light projection beyond the immediate objects intended to be illuminated.
- Sports field lighting extinguished after event
Outdoor lighting of sports fields and facilities shall be extinguished after the completion of the event.
Other
- Waiver and modification process
The board of supervisors may modify or waive one or more of the standards set forth in section 25-504 in a particular case, and may impose conditions on such a modification or waiver which it deems appropriate to further the purposes of these outdoor lighting regulations.
From the ordinance
Light fixtures shall not exceed 25 feet in height... Illumination onto residential use shall not exceed 0.2 vertical foot-candles.