General Regulations
Examples of fully shielded light fixtures: Sconce, Pole, Canister, and Canopy. In each case the fixture has a solid housing with a flat lens or bottom and the bulb is fully within the housing. |
ZONING DISTRICT REQUIREMENTS | |||
|---|---|---|---|
Residential Zoning Districts (Not Including Public Uses) | Commercial, Service, Downtown Clayton, Mixed uses including office and retail/restaurant | Public Uses in Residential Zones | |
Maximum allowable light levels (measured in footcandles) | 5.0 at building entries | 5.0 at building entries | 5.0 at building entries |
3.0 in parking areas | 5.0 in parking areas | 5.0 in parking lots | |
3.0 along pedestrian walkways | 3.0 along pedestrian walkways | 3.0 along pedestrian walkways | |
2.0 in common open space areas | 2.0 in outdoor storage areas (maximum uniformity ratio requirements are not applicable) | ||
Maximum uniformity ratio (maximum to minimum) | n/a | 10:1 (except as noted above) | 15:1 |
Maximum lumen rating for a full cutoff luminaire shielded from view of adjacent streets and properties | 8,500 - parking areas of 6 or more spaces | 8,500 - pedestrian areas 14,000 - parking and loading areas | 14,000 - parking and loading areas |
4,000 - walkway lights and common areas | 23,500 on 35 foot pole when permitted (parking and loading areas) | ||
1,800 stairways and entryways | 16,000 for high pressure sodium when permitted | ||
Maximum lumen rating for a partially shielded (IES TM-15-11 G1 rating) fixture | 900 | 1,250 | 1,250 |
Maximum lumen rating for an unshielded light fixture | 900: except no lamp or bulb, other than for seasonal displays and landscape ornamental lighting, shall be visible beyond the property line | 900 | 900 |
Controls | Motion sensors required for all unshielded fixtures in excess of 900 lumens | Recommended after close of business | Recommended after close of business |
Maximum allowable pole height (includes base, pole and luminaire) | 20 feet in parking lots | 25 feet in parking lots | 20 feet in parking lots within or adjacent to residential zones, otherwise 25 foot maximum |
15 feet in all other areas | 35 feet for contiguous parking lots of 5 or more acres in size 20 feet in all other areas | ||
OTHER USE REQUIREMENTS | ||||
|---|---|---|---|---|
Open Parking Structures and Parking Below a Building | Private Recreation Use | Public Recreation Use | Service Stations, Automobile Dealerships, Drive-Thru Windows | |
Maximum allowable light levels (measured in footcandles) | 5.0 within open parking structure and parking below a building 5.0 for uncovered upper levels 5.0 for covered exterior pedestrian circulation areas that are a part of a parking structure or parking below a building | The lesser of 30 footcandles or the IESNA recommended standards for the specific sports venue 5.0 in parking lots 4.0 in pedestrian areas | The IESNA recommended standards for the specific sports venue 5.0 in parking lots 4.0 in pedestrian areas | 5.0 in building entries and drive-up windows 20.0 under service station canopies 15.0 within vehicular display areas 5.0 in parking lots 3.0 along pedestrian walkways |
Maximum uniformity ratio (maximum to minimum) | 5:1 within parking structure 10:1 remainder of site | 3:1 on sports field or court 10:1 remainder of site | 3:1 on sports field or court 10:1 remainder of site | 10:1 |
Maximum lumen rating for a full cutoff light fixture shielded from view of adjacent streets and properties | 14,000 | 23,500 for field or court area 8,500 for parking and pedestrian areas | 107,000 for sports field 23,500 for courts 14,000 for parking areas 8,500 for pedestrian areas | 14,000 |
Maximum lumen rating for a partially shielded (IES TM-15-11 G1 rating) fixture | 1,800 | 1,250 | 4,000 | 1,800 |
Maximum lumen rating for an unshielded light fixture | 900 | 900 | 900 | 900 |
Sports shielding | n/a | Internal and external | Internal and external | n/a |
Light fixture aiming angle | n/a | n/a | Not greater than 60 degrees from nadir | n/a |
Controls | Automatic daylight adaptation controls required | Field or court lights shall be turned off within 30 minutes of the last event or 12:00 midnight, whichever is earlier | Field or court lights shall be turned off within 30 minutes after the last event | Service station canopies and vehicular display lights shall not exceed 5.0 footcandles within 1 hour of the close of business |
Maximum allowable pole height (includes base, pole, and light fixture) | 12 feet for uncovered upper level parking | 20 feet in residential zones 25 feet in all other zones | 20 feet in parking lots within or adjacent to residential zones, otherwise 25 feet 35 feet for sports lighting or as approved by the city manager per Section 9-2-14, "Site Review," B.R.C. 1981 | 20 feet when adjacent to residential zones, otherwise 25 feet in parking lots 20 feet in all other areas |
General Regulations
Examples of fully shielded light fixtures: Sconce, Pole, Canister, and Canopy. In each case the fixture has a solid housing with a flat lens or bottom and the bulb is fully within the housing. |
ZONING DISTRICT REQUIREMENTS | |||
|---|---|---|---|
Residential Zoning Districts (Not Including Public Uses) | Commercial, Service, Downtown Clayton, Mixed uses including office and retail/restaurant | Public Uses in Residential Zones | |
Maximum allowable light levels (measured in footcandles) | 5.0 at building entries | 5.0 at building entries | 5.0 at building entries |
3.0 in parking areas | 5.0 in parking areas | 5.0 in parking lots | |
3.0 along pedestrian walkways | 3.0 along pedestrian walkways | 3.0 along pedestrian walkways | |
2.0 in common open space areas | 2.0 in outdoor storage areas (maximum uniformity ratio requirements are not applicable) | ||
Maximum uniformity ratio (maximum to minimum) | n/a | 10:1 (except as noted above) | 15:1 |
Maximum lumen rating for a full cutoff luminaire shielded from view of adjacent streets and properties | 8,500 - parking areas of 6 or more spaces | 8,500 - pedestrian areas 14,000 - parking and loading areas | 14,000 - parking and loading areas |
4,000 - walkway lights and common areas | 23,500 on 35 foot pole when permitted (parking and loading areas) | ||
1,800 stairways and entryways | 16,000 for high pressure sodium when permitted | ||
Maximum lumen rating for a partially shielded (IES TM-15-11 G1 rating) fixture | 900 | 1,250 | 1,250 |
Maximum lumen rating for an unshielded light fixture | 900: except no lamp or bulb, other than for seasonal displays and landscape ornamental lighting, shall be visible beyond the property line | 900 | 900 |
Controls | Motion sensors required for all unshielded fixtures in excess of 900 lumens | Recommended after close of business | Recommended after close of business |
Maximum allowable pole height (includes base, pole and luminaire) | 20 feet in parking lots | 25 feet in parking lots | 20 feet in parking lots within or adjacent to residential zones, otherwise 25 foot maximum |
15 feet in all other areas | 35 feet for contiguous parking lots of 5 or more acres in size 20 feet in all other areas | ||
OTHER USE REQUIREMENTS | ||||
|---|---|---|---|---|
Open Parking Structures and Parking Below a Building | Private Recreation Use | Public Recreation Use | Service Stations, Automobile Dealerships, Drive-Thru Windows | |
Maximum allowable light levels (measured in footcandles) | 5.0 within open parking structure and parking below a building 5.0 for uncovered upper levels 5.0 for covered exterior pedestrian circulation areas that are a part of a parking structure or parking below a building | The lesser of 30 footcandles or the IESNA recommended standards for the specific sports venue 5.0 in parking lots 4.0 in pedestrian areas | The IESNA recommended standards for the specific sports venue 5.0 in parking lots 4.0 in pedestrian areas | 5.0 in building entries and drive-up windows 20.0 under service station canopies 15.0 within vehicular display areas 5.0 in parking lots 3.0 along pedestrian walkways |
Maximum uniformity ratio (maximum to minimum) | 5:1 within parking structure 10:1 remainder of site | 3:1 on sports field or court 10:1 remainder of site | 3:1 on sports field or court 10:1 remainder of site | 10:1 |
Maximum lumen rating for a full cutoff light fixture shielded from view of adjacent streets and properties | 14,000 | 23,500 for field or court area 8,500 for parking and pedestrian areas | 107,000 for sports field 23,500 for courts 14,000 for parking areas 8,500 for pedestrian areas | 14,000 |
Maximum lumen rating for a partially shielded (IES TM-15-11 G1 rating) fixture | 1,800 | 1,250 | 4,000 | 1,800 |
Maximum lumen rating for an unshielded light fixture | 900 | 900 | 900 | 900 |
Sports shielding | n/a | Internal and external | Internal and external | n/a |
Light fixture aiming angle | n/a | n/a | Not greater than 60 degrees from nadir | n/a |
Controls | Automatic daylight adaptation controls required | Field or court lights shall be turned off within 30 minutes of the last event or 12:00 midnight, whichever is earlier | Field or court lights shall be turned off within 30 minutes after the last event | Service station canopies and vehicular display lights shall not exceed 5.0 footcandles within 1 hour of the close of business |
Maximum allowable pole height (includes base, pole, and light fixture) | 12 feet for uncovered upper level parking | 20 feet in residential zones 25 feet in all other zones | 20 feet in parking lots within or adjacent to residential zones, otherwise 25 feet 35 feet for sports lighting or as approved by the city manager per Section 9-2-14, "Site Review," B.R.C. 1981 | 20 feet when adjacent to residential zones, otherwise 25 feet in parking lots 20 feet in all other areas |