HomeMy WebLinkAboutCity Council Ordinance 2013-27CITY OF PLYMOUTH
HENNEPIN COUNTY, MINNESOTA
ORDINANCE N0. 2013-27
AN ORDINANCE AMENDING CHAPTER 21 OF THE PLYMOUTH CITY CODE,
ENTITLED THE PLYMOUTH ZONING ORDINANCE (2013040)
THE CITY OF PLYMOUTH ORDAINS:
SECTION 1. Amendment. Section 21005.02 of the Plymouth City Code (RULES AND
DEFINITIONS—DEFINITIONS) is amended by deleting the existing lighting -related
definitions and replacing them with the following definitions:
Lighting Related:
(a) Absolute Photometry: Photometric measurements (typically used for an LED
luminaire) that directly measures the light distribution and lumen output of the luminaire.
Reference Standard IES LM -79.
(b) Artificial Sky Glow: The brightening of the night sky attributable to man-made
sources of light. Skyglow is caused by light directed or reflected upwards or sideways
and reduces one's ability to view the night sky.
(c) Backlight: For an exterior luminaire, lumens emitted in the quarter sphere below
horizontal and in the opposite direction of the intended orientation of the luminaire. For
luminaires with symmetric distribution, backlight will be the same as front light.
(d) BUG: An exterior luminaire classification system, as defined by IES TM -15-11,
which classifies backlight (B), uplight (U) and glare (G).
(e) Candela: The unit of luminous intensity of a lighting source emitted in a given
direction.
(f) Color -Rendering Index (CRI): A general expression for the effect of a light
source on the color appearance of objects. Sources with higher CRI values than other
sources at the same CCT provide truer color rendition.
(g) Correlated Color Temperature (CCT): A general expression related to the
whiteness of light on a scale from warm to cool. Expressed in units of Kelvin, sources
with low CCTs exhibit warmer light and sources with high CCTs cool light.
(h) Curfew: A time each night after which certain electric illumination must be
turned off or reduced in intensity.
(i) Footcandle: The English unit illumination or measure expressing the density of
light received on a surface (lumens/ft). The metric unit is Lux (lumens/m2).
0) Forward Light: For an exterior luminaire, the lumens emitted in the quarter
sphere below the horizontal and in the direction of the intended orientation of the
luminaire.
(k) Fully Shielded Luminaire: A luminaire constructed and installed in such a
manner that all light emitted by the luminaire, either directly from the light source or a
diffusing element, or indirectly by reflection or refraction from any part of the luminaire,
is projected below the horizontal plane through the luminaire's lowest light -emitting
point.
(1) Glare: Light entering the eye directly from luminaires or indirectly from relative
surfaces that causes visual discomfort or reduced visibility.
(m) Hardscape: Permanent hardscape improvements to the site including parking
lots, drives, entrances, curbs, ramps, stairs, steps, medians, walkways and non -vegetated
landscaping that is 10 feet or less in width. Materials may include concrete, asphalt,
stone, gravel, etc.
(n) Hardscape Area: The area measured in square feet of all hardscape. It is used to
calculate the Total Site Lumen Limit. Refer to Hardscape definition.
(o) Hardscape Lighting: Lighting provided to illuminate Hardscape Areas.
(p) Ideally Oriented: A luminaire is considered "ideally oriented" if it is mounted
such that the backlight portion of the light output is oriented perpendicular and toward the
property line.
(q) IES: The Illuminating Engineering Society.
(r) Initial Luminaire Lumens: For luminaire with relative photometry per IES, it is
calculated as the sum of the initial lamp lumens for all lamps within an individual
luminaire, multiplied by the luminaire efficiency. If the efficiency is not known for a
residential luminaire, assume 70%. For luminaires with absolute photometry per IES
LM -79, it is the total initial luminaire limens. The lumen rating of a luminaire assumes
the lamp or luminaire is new and has not depreciated in light output (light loss factor = 1).
(2)
(s) Lamp or Light Source: A generic term for a source of optical radiation (i.e.
"light"), often called a "bulb" or "tube". Examples include incandescent, fluorescent,
high-intensity discharge (HID) and low pressure sodium (LPS) lamps, as well as light -
emitting diode (LED) modules and arrays.
(t) Landscape Lighting: Luminaires mounted in or at grade (not to exceed three feet
overall above grade) and used solely to illuminate trees, shrubs, other plant material,
ponds and landscape features, rather than area lighting; or fully shielded luminaires
mounted in trees and used solely for landscape or fagade lighting.
(u) LED: Light -emitting diode.
(v) Light Pollution: Any adverse effect of artificial light including, but no limited to,
glare, light trespass, sky -glow, energy waste, compromised safety and security, and
impacts on the nocturnal environment.
(w) Light Trespass: Light that falls beyond the property it is intended to illuminate.
(x) Lighting Zone: A type of area defined on the basis of ambient light levels,
population density and/or other community considerations. The zone for each parcel is
determined by the City Council.
(y) Low Voltage Landscape Lighting: Landscape lingitng powered at less than 15
volts and limited to luminaires having a rated initial luminaire lumen output of 525
lumens or less.
(z) Lumen: The unit of luminous flux; a measure of the amount of light emitted by a
luminaire, as compared to "watt," a measure of power consumption.
(aa) Luminaire ("light fixture"): A complete lighting unit consisting of one or more
electric lamps or light sources, reflector, lens, ballast or driver and/or other components
and accessories.
(bb) Luminance: The amount of light emitted in a given direction from a surface by
the light source or by reflection from a surface. The unit is candela per square meter or
nits.
(cc) Luminous Flux: A measure of the total light output from a source, the unit is the
lumen.
(dd) Mounting Height: The vertical distance between the lowest part of the luminaire
and the ground surface directly below the luminaire.
(ee) Nadir: The downward direction, exactly vertical, directly below a luminaire.
(3)
(ff) Not Ideally Oriented: A himinaire is considered "not ideally oriented" if it is
mounted in any way other than such that the backlight portion of the light output is
oriented perpendicular and towards the property line.
(gg) Obtrusive Light: Glare and light trespass.
(hh) Ornamental Lighting: Lighting that does not impact the function and safety of an
area but is purely decorative, or used to illuminate architecture and/or landscaping, and
installed for aesthetic effect.
(ii) Partially Shielded Luminaire: A luminaire with an opaque top and translucent or
perforated sides, designed to emit most light downward.
6j) Photometric Test Report: A report by a testing laboratory certified by the
National Institute of Standards and Technology (NIST) describing the candela
distribution, shielding type, luminance and other optical characteristics of a specific
luminaire.
(kk) Relative Photometry: Photometric measurements made of the lamp or light
source plus luminaire, and adjusted to allow for light loss due to reflection or absorption
within the luminaire. Reference standard IES LM -63.
(11) Sales Area: Uncovered exterior area used for sales of retail goods and materials,
including but not limited to automobiles, boats, tractors and other farm equipment,
building supplies, and gardening and nursery products.
(mm) Temporary Lighting: Lighting installed with temporary wiring and operated for
less than sixty (60) days in any calendar year.
(nn) Unshielded Luminaire: A luminaire capable of emitting light in any direction
including downwards.
(oo) Uplight: For an exterior luminaire, flux radiated in the hemisphere at or above
the horizontal plane.
SECTION 2. Amendment. Section 20145.07, Subd. I(q) of the Plymouth City Code (SITE
PLAN REVIEW—INFORMATION REQUIREMENT) is amended as follows:
(q) Lighting Plan. The plan shall depict all exterior lighting for the development and
must include:
(1) Lighting zone assignment(s).
(2) Location of all exterior lighting by type.
(4)
(3) Description, including but not limited to catalog cut sheets by
manufacturers and drawings, of the illuminating devices, fixtures, lamps,
supports, reflectors, and other devices proposed.
(4) Mounting height of all luminaires.
(5) Hours of illumination.
(6) Photometric data, such as that furnished by manufacturers showing
the shielding of a fixs-obvieus to the Zoning ^ dministr-tor initial luminaire
lumens, color -rendering index (CRI), correlated color temperature (CCT) and
BUG rating, for each exterior luminaire.
(7) Calculations providingwa4s proposed and allowed lumens per square foot
of hardscape, including calculations addressing the proposed and allowed
additional allowances for sales and service facilities.
(8) Signature of registered engineer or certified lighting professional who
prepared the plan.
(Amended by Ord. No. 2004-30,11123104) (Amended by Ord. No. 2006-04, 02/07/06)
SECTION 3. Amendment. Section 21105.06 of the Plymouth City Code (GENERAL
BUILDING AND PERFORMANCE STANDARDS—EXTERIOR LIGHTING) is amended by
deleting the existing Exterior Lighting section and replacing it with the following:
21105.06. EXTERIOR LIGHTING: Exterior lighting shall comply with the following
standards:
Subd. 1. Purpose and Scope. The purpose of this Section is to establish exterior
lighting requirements that will 1) permit reasonable uses of lighting for night-time safety,
utility, security, productivity, enjoyment and commerce, 2) minimize glare, obtrusive
light and artificial sky glow by limiting outdoor lighting that is misdirected, excessive or
unnecessary, 3) conserve energy and resources to the greatest extent possible and 4) help
protect the natural environment from the damaging effects of night lighting from man-
made sources.
Subd. 2. Use of Lighting Zones.
(a) Using Table 1 as a guide, the City Council shall determine and maintain Lighting
Zones within the boundaries of the City.
(b) The lighting zones established by this Ordinance are hereby set forth on the
Plymouth, Minnesota Lighting Zone Map; and said map is hereby made a part of this
Ordinance; said map shall be known as the "Plymouth, Minnesota Lighting Zone Map".
(5)
Said map and all notations, references, and data shown thereon are hereby incorporated
by reference into this Ordinance and shall be as much a part of it as if all were fully
described herein. It shall be the responsibility of the Zoning Administrator to maintain
said map, and amendments thereto shall be recorded on said Lighting Zone Map within
30 days after official adoption of amendments. The official Lighting Zone Map shall be
kept on file in the City Hall. The Lighting Zone of a parcel or project shall determine the
limitations for lighting as specified in this Section.
(c) Amendments to the Lighting Zones shall be processed according to the
procedures established in Section 21010 of this Chapter.
Table 1— Lighting Zone Ratings and Characteristics
Subd. 3. Applicability.
(a) All outdoor lighting fixtures (luminaires) in Lighting Zone 2, and all outdoor
lighting fixtures on non-residential properties in Lighting Zones 0 and I shall be installed
in conformance with the provisions of this Section and Section 21155 (Sign Regulations)
as applicable as well as the latest rules, codes and regulations, including but not limited to
OSHA, National Fire Codes of Fire Protection Association (NFPA_), Minnesota State
Building Code, and National Electrical Code. In addition, all luminaires shall be installed
under appropriate permit and inspection.
(b) Lighting on single- and two-family homes, manor homes, and townhouses is
subject only to the regulations as outlined in Subd. 6 and in Subd. 7 (c) of this subsection.
(6)
Lmil
�Itlilft �:,;
LZO
No ambient
Natural areas (City -owned open space as
lighting
defined in the Plymouth Comprehensive
Plan).
LZ 1
Low ambient
Low and medium density residential areas,
lighting
(generally properties guided Living Area -1,
Living Area -2, Living Area -3).
LZ2
Moderate
High density residential areas (properties
ambient lighting
guided Living Area -4, Living Area -5),
shopping and commercial districts
(generally properties guided Commercial,
City Center and Commercial Office),
industrial parks and districts (properties
guided Planned Industrial), City playfields
and major institutional uses and mixed use
districts.
LZ3
Moderately high
By conditional use permit only.
ambient lighting
Subd. 3. Applicability.
(a) All outdoor lighting fixtures (luminaires) in Lighting Zone 2, and all outdoor
lighting fixtures on non-residential properties in Lighting Zones 0 and I shall be installed
in conformance with the provisions of this Section and Section 21155 (Sign Regulations)
as applicable as well as the latest rules, codes and regulations, including but not limited to
OSHA, National Fire Codes of Fire Protection Association (NFPA_), Minnesota State
Building Code, and National Electrical Code. In addition, all luminaires shall be installed
under appropriate permit and inspection.
(b) Lighting on single- and two-family homes, manor homes, and townhouses is
subject only to the regulations as outlined in Subd. 6 and in Subd. 7 (c) of this subsection.
(6)
(c) Lighting in the public right-of-way is not regulated by this Section. However, it is
recommended that all such lighting conform to the regulations in this Section.
Subd. 4. General Performance Standards:
(a) Luminaire shielding and installation requirements.
(1) Luminaires within 300 feet of a residential property line shall be equipped
with side shielding (house side shielding), except that luminaires mounted at a
height of 12 feet or lower shall be exempt from this requirement provided they
meet IESNA UO rating.
(b) Height Limits.
(1) Pole mounted lighting. Lighting mounted onto poles or any structures
intended primarily for mounting of lighting shall not exceed a mounting height of
40 percent of the horizontal distance of the light pole from the property line, nor a
maximum height according to Table 2, whichever is lower. Height includes the
base and the pole heights.
Table 2 — Maximum Lighting Mounting Height in Feet
(2) Exceptions for pole heights.
a. Mounting heights greater than 40 percent of the horizontal distance
to the property line but no greater than permitted by Table 2 may be used
provided that the luminaire has a BO rating if ideally oriented or a GO
rating if not ideally oriented.
b. Lights specifically for driveways, and then only at the intersection
of the road providing access to the site, may be mounted at any distance
relative to the property line, but may not exceed the mounting height listed
in Table 2.
c. Landscape lighting may be installed in a tree.
(7)
LZO
25 feet
12 feet
4.5 feet
LZ1
25 feet
18 feet
8 feet
LZ2
30 feet
18 feet
15 feet
LZ3
30 feet
18 feet
15 feet
(2) Exceptions for pole heights.
a. Mounting heights greater than 40 percent of the horizontal distance
to the property line but no greater than permitted by Table 2 may be used
provided that the luminaire has a BO rating if ideally oriented or a GO
rating if not ideally oriented.
b. Lights specifically for driveways, and then only at the intersection
of the road providing access to the site, may be mounted at any distance
relative to the property line, but may not exceed the mounting height listed
in Table 2.
c. Landscape lighting may be installed in a tree.
(7)
(3) Lights mounted to buildings or structures. Lighting mounted onto
buildings or other structures shall not exceed a mounting height greater than four
feet higher than the tallest part of the building or stricture at the place where the
lighting is installed, nor higher than 40 percent of the horizontal distance of the
light from the property line, whichever is less.
(4) Exceptions for building mounted lights.
a. Lighting for facades may be mounted at any height equal to or less
than the total height of the structure being illuminated regardless of
horizontal distance to property line.
b. For buildings less than 40 feet to the property line, including
canopies or overhangs onto a sidewalk or public right of way, luminaires
may be mounted to the vertical fagade or underside of canopies at 16 feet
or less.
C. The top exterior deck of parking garages shall be treated as normal
pole mounted lighting rather than as lights mounted to buildings. The
lights on the outside edges of such a deck must be side shielded to the
property line.
(c) Lighting Quality
(1) All permanently installed lighting for high density residential
developments and all non-residential lighting shall have a minimum CRI of 70.
(2) All permanently installed lighting for high density residential
developments and all non-residential lighting shall have a CCT of no greater than
4100K.
(d) Lighting quantity and luminaire distribution.
(1) Total site lumen limit: The total installed initial luminaire lumens of all
outdoor lighting shall not exceed the total site lumen limit. The total site lumen
limit shall be determined using either the Parking Space Method (Table 3) or the
Hardscape Area Method (Table 4). Only one method shall be used per
application, and for sites with existing lighting, existing lighting shall be included
in the calculation of total initial installed luminaire lumens. The total installed
initial luminaire lumens is calculated as the sum of the initial luminaire lumens
for all luminaires.
U
Table 3 — Allowed Total Initial Luminaire Lumens per Site per Parking Space Method
(May only be applied to properties with no more than 10 parking spaces, including
handicapped accessible spaces)
Table 4 — Allowed Total Initial Luminaire Lumens per Site per Hardscape Area Method
(May be used for any project)
E
Allowance
350
490
630
840
himens/space
lumens/space
lumens/space
lumens/space
Table 4 — Allowed Total Initial Luminaire Lumens per Site per Hardscape Area Method
(May be used for any project)
(9)
Base allowance of lumens per square foot
0.5
1.25 2.5
5
of hardscapel
Additional allowances for sales and service facilities.
No more than two additional allowances per site. Use it or lose it.
Outdoor Sales Lots. This allowance is
lumens per square foot of uncovered sales
lots used exclusively for the display of
4
8
16
vehicles or other merchandise for sale,
0
lumens/
lumens/
lumens/
and may not include driveways, parking
sf
sf
sf
or other non -sales areas. To use this
allowance, luminaires must be within 2
mounting heights of the sales lot area.
Outdoor Sales Frontage. This allowance
is for lineal feet of sales frontage
immediately adjacent to the principle
viewing location(s) and unobstructed for
its viewing length. A corner sales lot
1,000
1,500
may include two adjacent sides provided
0
0
lumens/
lumens/
that a different principal viewing location
LF
LF
exists for each side. In order to use this
allowance, luminaires must be located
between the principal viewing location
and the frontage outdoor sales area.
2,000
4,000
8,000
Drive Up Windows. In order to use this
lumens
lumens
lumens
allowance, luminaires must be within 20
0
per
per
per
feet horizontal distance of the center of
drive-
drive-
drive -
the window.
up
up
up
window
window
window
4,000
8,000
16,000
Vehicle Service Station. This allowance
0
lumens
lumens
lumens
is lumens per installed fuel pump.
per
per
per
PUMP I
pump
pump
(9)
'When lighting intersections of site drives and public streets or roads, a total of
600 square feet for each intersection may be added to the actual site hardscape
area to provide for intersection lighting.
(2) Limits to off-site impacts: All luminaires shall be rated and installed
according to Tables 5, 6 and 7. A luminaire may be used if it is rated for the
lighting zone of the site or lower in number for all B, U and G ratings.
Luminaires equipped with adjustable mounting devices permitting alteration of
luminaire aiming in the field shall not be permitted.
Table 5 — Maximum Allowable Backlight Ratings
,For property lines that abut public walkways, bikeways, plazas, and parking lots,
the property line may be considered to be 5 feet beyond the actual property lien
for purpose of determining compliance with this table. For property lines that
abut public roadways and public transit corridors, the property line may be
considered to be the centerline of the public roadway or public corridor for the
purpose of determining compliance with this table. NOTE: This adjustment is
relative to Tables 5 and 7 only, and shall not be used it increase the Hardscape
Area of the site.
Table 6 — Maximum Allowable Uplight Ratings
Area lighting
UO UO UO UO
Ornamental lighting and luminaires not
used for area lighting
Greater than 2 mounting heights from
B1
B3
B4
B5
property line or not ideally oriented
1 to less than 2 mounting heights from
B 1
B2
B3
B4
property line and ideally oriented
0.5 to less than 1 mounting height from
BO
Bl
B2
B3
property line and ideally oriented
Less than 0.5 mounting height from
BO
BO
BO
Bl
property line and ideally oriented
,For property lines that abut public walkways, bikeways, plazas, and parking lots,
the property line may be considered to be 5 feet beyond the actual property lien
for purpose of determining compliance with this table. For property lines that
abut public roadways and public transit corridors, the property line may be
considered to be the centerline of the public roadway or public corridor for the
purpose of determining compliance with this table. NOTE: This adjustment is
relative to Tables 5 and 7 only, and shall not be used it increase the Hardscape
Area of the site.
Table 6 — Maximum Allowable Uplight Ratings
(10)
Area lighting
UO UO UO UO
Ornamental lighting and luminaires not
used for area lighting
UO U1 U2 U3
(10)
Table 7 — Maximum Allowable Glare Ratings
(3) Shielding for parking lot lighting: All parking lot lighting shall have a
UO rating, except that ornamental parking lot lighting shall meet the requirements
of Tables 5, 6 and 7 without the need for external field -added modifications.
(d) Required lighting controls. Lighting systems for non-residential properties shall
be extinguished or reduced in lighting by at least 50 percent beginning at curfew and
continuing until dawn or start of business, whichever is sooner. The reduction shall be
determined as an overall average for a site. When possible, the lighting system should be
turned off entirely.
(1) Curfew. Curfew shall be as follows:
LZO, the later of 8:00 PM or close of business
LZ1, the later of 8:00 PM or close of business
LZ2, the later of 10:00 PM or close of business
LZ3, the later of midnight or close of business
(2) Low voltage landscape lighting shall be completely extinguished at the
Curfew time stated above or one hour after the site is closed, whichever is
sooner.
(3) Exceptions to curfew:
a. When there is only one (conforming) luminaire for the site.
b. Code required lighting for steps, stairs, walkways, and building
entrances.
c. When in the opinion of the City Council, reduced lighting levels at
a given location will cause unacceptable increased risk and design levels
must be maintained.
(e) Prohibited lighting.
Greater than 2 mounting heights from
GO
G1
G2
G3
property line or ideally oriented
1 to less than 2 mounting heights from
GO
GO
G1
G1
property line and not ideally oriented
0.5 to less than 1 mounting height from
GO
GO
GO
G1
property line and not ideally oriented
Less than 0.5 mounting heights from
GO
GO
GO
GO
property line and not ideally oriented
(3) Shielding for parking lot lighting: All parking lot lighting shall have a
UO rating, except that ornamental parking lot lighting shall meet the requirements
of Tables 5, 6 and 7 without the need for external field -added modifications.
(d) Required lighting controls. Lighting systems for non-residential properties shall
be extinguished or reduced in lighting by at least 50 percent beginning at curfew and
continuing until dawn or start of business, whichever is sooner. The reduction shall be
determined as an overall average for a site. When possible, the lighting system should be
turned off entirely.
(1) Curfew. Curfew shall be as follows:
LZO, the later of 8:00 PM or close of business
LZ1, the later of 8:00 PM or close of business
LZ2, the later of 10:00 PM or close of business
LZ3, the later of midnight or close of business
(2) Low voltage landscape lighting shall be completely extinguished at the
Curfew time stated above or one hour after the site is closed, whichever is
sooner.
(3) Exceptions to curfew:
a. When there is only one (conforming) luminaire for the site.
b. Code required lighting for steps, stairs, walkways, and building
entrances.
c. When in the opinion of the City Council, reduced lighting levels at
a given location will cause unacceptable increased risk and design levels
must be maintained.
(e) Prohibited lighting.
(1) Mercury vapor lamps
(2) Luminaires mounted to aim light only toward a property line.
(3) Luminaires mounted in a way so as to cause confusion or hazard to traffic
or to conflict with traffic control signs or lights.
(f) Following installation of any lighting on a site, the engineer or lighting
professional who prepared the lighting plan shall certify in writing that the location, type,
mounting height, initial luminaire lumens, and photometric data including BUG ratings
all comply with the approved lighting plan.
(g) Any new lighting installed after the effective date of this ordinance shall be in
compliance with the requirements of this Section. Any lighting in existence before the
effective date of this ordinance that does not comply with the requirements shall be
considered legally non -conforming. However, if a property owner proposes to replace
(50) percent or more of the existing exterior luminaires or standards in any one year
period, the luminaires or standards must be replaced in conformance with this Chapter.
Subd. 5. Light Trespass Limitations. The illuminance levels provided in Table 8
shall be used for enforcement should concerns of obtrusive lighting or questions of
compliance arise. This provision shall apply to all exterior lighting, and to interior
lighting if the light source is visible off-site. The illuminance values provided in Table 8
shall be measured at the lot line unless said lot line abuts a public street, in which case the
illuminance values shall be measured at the centerline of such public street.
Table 8 — Light Trespass Limitations
Subd. 6. Exempt Lighting: The following luminaires and lighting systems are
exempt from the provisions of this Section.
(a) Lighting required and regulated by the Federal Aviation Administration or other
federal or state agency.
(b) Situations where fire, police, rescue or repair personnel need light for temporary
emergencies or road repair work.
(c) Temporary seasonal lighting provided that individual lamps are less than 10 watts
and 70 lumens.
(12)
LZO
0.0 foot-candles
0.0 foot-candles
LZ1
0.1 foot-candles
0.1 foot-candles
LZ2
0.3 foot-candles
0.1 foot-candles
LZ3
0.8 foot-candles
0.2 foot-candles
Subd. 6. Exempt Lighting: The following luminaires and lighting systems are
exempt from the provisions of this Section.
(a) Lighting required and regulated by the Federal Aviation Administration or other
federal or state agency.
(b) Situations where fire, police, rescue or repair personnel need light for temporary
emergencies or road repair work.
(c) Temporary seasonal lighting provided that individual lamps are less than 10 watts
and 70 lumens.
(12)
(d) Temporary lighting for theatrical, television and performance areas.
(e) Soffit or wall -mounted luminaires with less than 375 initial luminaire lumens and
permanently attached to dwellings (including multi -family residence but excluding hotels
or motels) at a height not to exceed 20 feet above the adjacent grade.
(f) Lighting in swimming pools and other water features governed by Article 680 of
the National Electrical Code.
(g) Code required exit signs.
(h) Code required lighting for stairs and ramps.
(i) Interior lighting, except as addressed by Section 21105.06, Subd. 4 of this
Section.
Subd. 7. Special Purpose Lighting.
(a) High intensity lighting. The following lighting systems are prohibited from being
installed except by administrative permit.
(1) Aerial lasers.
(2) Skytrackers.
(3) Motion detection security lighting, except that such lighting for single -
and two-family homes shall be permitted and shall be exempt from the
requirement for an administrative permit.
(b) Other special lighting.
(1) Lighting systems not complying with the technical requirements of this
Section but consistent with its intent may be installed for the following
applications upon issuance of a conditional use permit. Each request for a
conditional use permit shall be evaluated based upon the standards and criteria set
forth in Section 21015.02, Subd. 4 of this Chapter.
(i) Outdoor athletic fields and recreation areas.
(ii) Construction lighting.
(iii) National and State flag lighting with spotlights greater than 3,400
lumens in LZ2 and LZ3 and 2,000 lumens in LZO and LZl.
(iv) Floodlighting of buildings over two (2) stories high.
(v) Public monuments, public buildings and religious institutions.
(13)
(vi) Ornamental lighting in LZO and LZ 1.
(2) To obtain a conditional use permit, applicants shall demonstrate that the
proposed lighting installation:
(a) Is not within LZO or LZI, except for ornamental lighting and
necessary construction lighting.
(b) Utilizes fully shielded luminaires and, if required, side shielded
and internally shielded luminaires that are installed in a fashion that
maintains the shielding characteristics unless certified in writing by a
registered engineer or by a certified lighting professional that such
shielding is impractical. Where fully shielded fixtures cannot be utilized,
acceptable luminaires shall include only those that are installed with
maximum aiming angles of 65 degrees above nadir. Said aiming angle
shall be measured from nadir as defined by an independent testing agency
using Type B photometry as defined by the IES.
(c) Has received every reasonable effort to mitigate light trespass and
light pollution, supported by a signed statement from a registered engineer
or by a certified lighting professional describing the mitigation measures.
(d) Complies with all the technical requirements of this Section after
curfew, with the following exception: No illumination of athletic fields
shall be permitted after 11:00 PM, except to conclude a scheduled event
that was in progress before 11:00 PM and circumstances prevented
concluding before 11:00 PM.
(c) Lighting for single and two family homes, manor homes, and townhouses.
(1) Lighting systems for single family homes in all Lighting Zones shall be in
compliance with the Pre -Curfew Light Trespass Limitations at the lot line
provided in Table 8 above. Lighting systems for two family homes, manor
homes, and townhouses in all Lighting Zones may consider the Pre -Curfew Light
Trespass Limitations at the subdivision boundary instead of the lot line.
(2) Motion activated lighting systems for single family homes in all Lighting
Zones shall not be activated by movement beyond the lot line, and motion
activated lighting systems for two family homes, manor homes, and townhouses
in all Lighting Zones shall not be activated by movement beyond the subdivision
boundary.
(3) Lighting systems for single family homes, two family homes, manor
homes, and townhouses in all Lighting Zones that provide lighting, or are
intended to provide lighting, for recreational purposes (i.e., sport courts, hockey
rinks, or other similar features) shall direct lighting downward and inward from
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the perimeter lot boundaries, shall not exceed 15 feet in height, and shall be
turned off between 10:00 PM and 7:00 AM.
SECTION 4. Amendment. Section 21155.05, Subd. 2 of the Plymouth City Code (SIGN
REGULATIONS—GENERAL REGULATIONS AND RESTRICTIONS) is amended as
follows:
Subd. 2. Unless specifically prohibited, all signs may be illuminated internally or by
reflected light subject to the following:
(a) The light source shall not be directly visible and shall be arranged to reflect away
from adjoining premises.
(b) The illumination source shall not be placed so to cause confusion or hazard to
traffic, or to conflict with official or traffic signs, signals, or lights.
(c) Maximum illumination levels:
(1) Signs using an LED (Light Emitting Diode) light source shall not exceed a
luminance level of 688-350 candela per square meter (nits) between sunset and
sunrise, and shall not exceed a luminance level of 5-,888-4,500 candela per square
meter between sunrise and sunset.
(2) Signs using florescent, neon, or incandescent light sources shall not
exceed 12 watts per square foot of sign surface area.
(3) All signs with illumination shall be equipped with a mechanism that
automatically adjusts the brightness to ambient lighting conditions (e.g., dusk).
(d) No illumination involving movement, by reason of the lighting arrangement,
lighting source, changes in either color or intensity of lighting, or other devices shall be
permitted. This includes video display signs (except as allowed in Section 21155.05,
Subd. 2 (e) and scoreboards as allowed in Section 21650 of this Chapter), or any signs
that have blinking, flashing, scrolling, shimmering, and rotating, except that time and
temperature signs may be allowed. Furthermore, the transition from one static electronic
display to another must be instantaneous without any special effects.
(e) An electronic changeable copy sign, electronic graphic display sign, video display
sign or a changeable copy sign, in addition to other permitted signage, may be permitted
provided the following conditions are met:
(1) The message shall not be visible from any public street.
(2) The portion of the sign allocated to changeable copy shall be no greater
than six square feet.
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(3) The sign shall comply with all other signage regulations.
(f) Electronic changeable copy and electronic graphic display signs shall be designed
and equipped to freeze the device in one position if a malfunction occurs or immediately
discontinue the display. Additionally, the sign owner shall immediately stop the display
if notified by the City that the sign is not complying with the standards of this Chapter.
(Amended by Ord. No. 2008-09, 03/25/08) (Amended by Ord. No. 2012-12, 03/27/12)
SECTION 5. Amendment. Section 21450.07, Subd. 4(h) of the Plymouth City Code (O,
OFFICE DISTRICT—CONDITIONAL USES) is amended as follows:
(h) All canopy lighting for motor fuel station pump islands shall be recessed or fully
shielded. ilium , atio., 'twAs Luminaires for pump islands shall comply with Section
21105.06 of this Chapter.
SECTION 6. Amendment. Section 21455.07, Subd. 2(h) of the Plymouth City Code (C-1,
CONVENIENCE COMMERCIAL DISTRICT—CONDITIONAL USES) is amended as
follows:
(h) All canopy lighting for motor fuel station pump islands shall be recessed or fully
shielded. 111ti ,mato„ levels Luminaires for pump islands shall comply with Section
21105.06 of this Chapter. (Amended by Ord. No. 2004-30, 11/23/04) (Amended by Ord.
No. 2006-04, 02/07/06)
SECTION 7. Amendment. Section 21460.07, Subd. 2(h) of the Plymouth City Code (C-2,
NEIGHBORHOOD COMMERCIAL DISTRICT—CONDITIONAL USES) is amended as
follows:
(h) All canopy lighting for motor fuel station pump islands shall be recessed or fully
shielded. 11tH ;,, Aie levels Luminaires for pump islands shall comply with Section
21105.06 of this Chapter.
SECTION 8. Amendment. Section 21465.07, Subd. 5(h) of the Plymouth City Code (C-3,
HIGHWAY COMMERCIAL DISTRICT—CONDITIONAL USES) is amended as follows:
(h) All canopy lighting for motor fuel station pump islands shall be recessed or fully
shielded. 111ti,. roan,^ novels Luminaires for pump islands shall comply with Section
21105.06 of this Chapter.
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SECTION 9. Amendment. Section 21465.07, Subd. 14(d) of the Plymouth City Code (C-3,
HIGHWAY COMMERCIAL DISTRICT—CONDITIONAL USES) is amended as follows:
(d) A protective canopy located over pump islands may be an accessory structure on
the property and may be located 20 feet or more from the front lot line, provided
adequate visibility both on and off site is maintained. All canopy lighting for motor fuel
station pump islands shall be recessed or fully shielded. 111tim nati n levad-s Luminaires
for pump islands shall comply with Section 21105.06 of this Chapter.
SECTION 10. Amendment. Section 21470.07, Subd. 15(f) of the Plymouth City Code (C-4,
COMMUNITY COMMERCIAL DISTRICT—CONDITIONAL USES) is amended as follows:
(f) All canopy lighting for motor fuel station pump islands shall be recessed or fully
shielded. lllu, in *io levels Luminaires for pump islands shall comply with Section
21105.06 of this Chapter.
SECTION 11. Amendment, Section 21470.07, Subd. 16(d) of the Plymouth City Code (C-4,
COMMUNITY COMMERCIAL DISTRICT—CONDITIONAL USES) is amended as follows:
(d) A protective canopy located over pump islands may be an accessory structure on
the property and may be located 20 feet or more from the front lot line, provided
adequate visibility both on and off site is maintained. All canopy lighting for motor fuel
station pump islands shall be recessed or fully shielded. illumination levels Luminaires
for pump islands shall comply with Section 21105.06 of this Chapter.
SECTION 12. Amendment. Section 21475.09, Subd. 3(c)(7) of the Plymouth City Code (CC,
CITY CENTER DISTRICT—CONDITIONAL USES) is amended as follows:
(7) A protective canopy located over pump islands may be an accessory
structure on the property and may be located 20 feet or more from the front lot
line, provided adequate visibility both on and off site is maintained. All canopy
lighting for motor fuel station pump islands shall be recessed or fully shielded.
illumination level Luminaires for pump islands shall comply with Section
21105.06 of this Chapter. (Amended by Ord. No. 2001-06, 02/13/01) (Amended
by Ord. No. 2006-04, 02/07/06)
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SECTION 13. Effective Date. This Ordinance shall be in full force and effect upon its
passage.
ADOPTED by the Plymouth City Council on October 22, 2013.
ATTEST:
Sandra R. Engda ,Cit Clerk
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Kelli Slavik, Mayor