Section 50.06.004 SITE DESIGN

50.06.004 SITE DESIGN Amended Ord. 2612-A, Effective 6/20/13

1. LANDSCAPING, SCREENING, AND BUFFERING

a. Applicability

i. Except as provided in subsection 1.a.ii of this section, this section is applicable to:

(1) All major development;

(2) Multi-family dwelling;

(3) Major public facilities;

(4) Commercial development;

(5) Institutional development;

(6) Industrial development;

(7) Subdivisions;

(8) Partitions involving the creation of a street; and

(9) Change of use that increases the number of required parking spaces by more than 25%.

ii. The above developments located within:

(1) The Downtown Redevelopment Design District shall comply with LOC 50.05.004 rather than the provisions of this section.

(2) The FMU zone shall comply with the Foothills Building and Site Design Standards, LOC 50.11.007, Appendix G.

b. Standards for Approval

i. Commercial, institutional, and industrial development, other than in the Office Campus zone, shall provide a minimum of 15% of gross land area in landscaping and/or open space visible from off site, including courtyards, planters, raised beds, espaliers, etc. Developments involving office campus and major public facilities shall provide a minimum of 20%.

ii. Multi-family and manufactured home park development must provide 20% of gross land area in landscaping in addition to the park and open space requirements.

iii. Public and semi-public use must meet subsections 1.b.i or 1.b.ii of this section, depending on use.

iv. All development abutting streets shall provide street trees at the proper spacing for the species.

v. Parking lot plantings shall be designed to allow surveillance of the lot from the street at several points.

vi. For commercial, institutional, industrial, multi-family dwelling, manufactured home parks, office campus, and major public facilities:

(1) Screening and buffering shall be required:

(a) To mitigate noise, lighting or other impacts from dissimilar uses.

(b) To screen public or private utility and storage areas and parking lots.

(c) As a separation between dissimilar uses.

(2) Landscaping visible from the street or other public right-of-way shall be complementary to the landscaping in the surrounding area.

vii. Any development in the EC zone that is abutting dissimilar uses in the R-DD zone must provide a minimum of 15 ft. of landscaped area to act as a separation and to screen and buffer noise, lighting or other impacts between the dissimilar uses.

viii. Rare and endangered species as identified below shall be preserved:

(1) Marsh or Sessile Trillium: "Trillium chloropetalum."

(2) Fawn Lily: "Erythoroium oreganum."

(3) White Larkspur: "Delphinium leucophaeum."

c. Standards for Installation and Construction

i. All plant materials shall conform in size and quality grade to the American Standard for Nursery Stock, current edition.

ii. All plant material shall be installed according to Sunset Western Garden Book, current edition.

iii. Except for single-family residential developments that require street trees, all planting shall have an irrigation system installed to meet standards of Turf Irrigation Manual, current edition, unless the applicant can demonstrate to the satisfaction of the reviewing authority that such system is not necessary.

iv. Existing vegetation may be used in a landscaping plan. Construction shall not be allowed within the drip lines of trees which are to remain. Finish grade shall be at the original grade or a well or planter constructed equal in size or greater than the drip line.

v. Topsoil removed during construction shall be replaced with topsoil.

vi. Plant materials for use in parking lots and streets shall have a mature height of less than 25 ft. in areas where overhead utilities are present.

vii. Plant materials listed as "Prohibited Street Trees" in the Lake Oswego Master Plant List, LOC 50.11.004, Appendix D, shall be prohibited as street trees, except those cultivars that do not have the characteristics identified by its species.

viii. When a tree is located within a sidewalk, the tree base shall be protected from damage by pedestrians and other causes in a manner that complies with the City Engineer’s specifications and applicable federal and state law, i.e., Americans with Disabilities Act.

ix. Plant material used for screening and buffering shall:

(1) Be of a size to provide an effective screen within two to five years of the planting date.

(2) Be planted in a single row on centers equal to one-half mature width of the plant material or in staggered multiple rows.

(3) Be a minimum of six ft. high at maturity; or as determined by the City Manager to buffer or screen a specific situation except as prohibited by LOC 50.06.011, Vision Clearance.

[Cross-References: LOC Chapter 55 – Removal of Trees; LOC 50.06.001.3.d – Street Trees in the R-6 Zone.]

(Ord. 2599, Amended, 12/18/2012; Ord. 2579, Repealed and Replaced, 03/20/2012)

2. FENCES

a. Purpose

The purpose and intent of this section is to provide standards and regulations regarding the location, height, materials, maintenance and appearance of fences, walls, and retaining walls within the City of Lake Oswego.

b. Applicability

No person shall construct a fence, wall, or retaining wall in violation of this section.

c. Location and Height

FMU Standards Note: If the below provisions address the same subject as provided in the Foothills Building and Site Design Standards, LOC 50.11.007, Appendix G, those standards shall supersede the below provisions.

i. Fences and walls in residential zones shall not exceed six ft. in height unless otherwise provided below:

(1) Four ft. in height when located within ten ft. of a property line abutting a public or private street or an access easement which serves more than two lots. This restriction shall not apply to properties which abut an access easement but which do not have a legal right to use the easement. For purposes of determining fence height under this subsection, alleys are not considered as public streets.

(2) Four ft. in height when located within the front yard setback of the Old Town Neighborhood.

ii. Gates in a fence or wall located within ten ft. of a property line abutting a public or private street or an access easement shall not exceed six ft. in height.

iii. Portals located within ten ft. of a property line abutting a public or private street or an access easement shall not exceed eight ft. in height.

iv. Fences, walls, and retaining walls in nonresidential zones shall not exceed eight ft. in height. Mixed use commercial/residential zones shall be considered a residential zone for purposes of this section. A fence, wall, or retaining wall over six ft. in height shall be screened by an evergreen hedge which shall be of a size and spacing so as to provide a six-ft. high, dense screen within three years of the date of planting. Any fence over six ft. in height requires a building permit.

v. Fences, walls, retaining walls, gates, and portals shall comply with the provisions of LOC 50.06.011 (Vision Clearance).

vi. Every body of water, as defined in LOC 50.10.003.2, shall have a barrier as required by the State of Oregon One and Two Family Dwelling Specialty Code.

vii. Retaining Walls within Residential Zones

(1) Retaining wall less than four ft. in height may be located in the required setback; provided, that if there are multiple retaining walls within the setback, each retaining wall shall be located no closer than five ft. to another retaining wall, as measured from the back of one retaining wall to the front of the other retaining wall.

(2) Retaining walls four ft. and greater in height shall be required to meet all setback requirements. Property owners shall be required to obtain a building permit for retaining walls greater than four ft. in height or for any wall over two ft. that supports a surcharge.

(3) Retaining walls shall not be permitted in any rights-of-way, except with prior approval of an encroachment permit.

viii. Fence Located on Top of or Near Retaining Walls

(1) The combined height of a retaining wall and fence, where the fence is located either on top of or within five ft. of the face of the retaining wall on the upslope side, shall be less than eight ft., as measured from the lower side of the retaining wall.

(2) No fence shall be located either on top of or within five ft. of the face of the retaining wall on the upslope side when either the retaining wall or the fence is located within ten ft. of a public or private street or an access easement which serves more than two lots.

ix. Berms, when used in conjunction with fences or walls, shall be included in height determinations.

x. Exceptions from Height Limitations

The height limitations of this section do not apply to:

(1) Fences which either provide security or are accessory or incidental to the use of a major public facility, minor public facility, or public transportation facilities; or

(2) An open (80% open) fence which is not located in the front yard (forward of the primary structure to the front lot line) and which encloses part or all of a tennis court, swimming pool, playing field, park, recreation facility, public or semi-public utility structure; or

(3) A noise fence permitted by the Oregon Department of Transportation abutting the right-of-way of Highway 43, but only to such height limits approved by ODOT; or

(4) Retaining walls used to directly support a driveway or car parking area for a single-family residence; or

(5) Retaining walls used to support right-of-way embankments subject to approval by the City Manager or designee.

Such fence height exempted under the above subsections shall not exceed ten ft. except a noise fence under subsection 2.c.x(3) of this section.

d. Materials – Standards for Construction

i. The unfinished or structural side of a fence or retaining wall shall face the owner’s property unless written consent has been obtained from all abutting property owners to face the unfinished or structural side of the fence in another direction.

ii. Fences shall not be constructed of, or contain, any material which will do bodily harm, such as electric or barbed wire, broken glass, spikes, or any other hazardous or dangerous material, except as follows:

(1) Barbed wire or electrified fences enclosing permitted livestock are permitted provided the barbed wire and electrified fences shall be posted and flagged at not less than 15-ft. intervals with clearly visible warnings of hazard.

(2) Barbed wire or upturned barbed salvage is permitted more than six ft. above grade in GC and Industrial zones; provided, that barbed wire shall not extend over a public or private street, alley, fire lane, or the property boundary of a property zoned residential. When used along a public or private street, the fence shall be screened from the street by an evergreen hedge which shall be of a size and spacing so as to provide a six-ft. high, dense screen within three years of the planting date.

iii. The enclosure surrounding a body of water as defined in LOC 50.10.003.2 shall be of a material type and constructed such that no openings, holes or gaps exist which are larger than four in. in any dimension except for doors or gates.

(1) All gates or door openings shall be equipped with an automatic closing and automatic latching device combined with a lock which must be locked when the facility is not in use. Doors of any occupied dwelling forming part of the enclosure need not be provided with the automatic locking and latching devices.

iv. Within the R-DD zone:

(1) Except for stone fences as authorized by subsection 3.d.iv(3) of this section, fencing included in the front yard shall be used in an ornamental or symbolic way, rather than as a visual barrier.

(2) Metal chain link fencing is prohibited except for:

(a) Temporary fencing used in tree protection measures as required in LOC 55.08.030 or in construction fencing; and

(b) Vinyl clad metal chain link in the side and rear yards of properties located east of Furnace Street; provided, that the fence does not extend into the front yard setback.

(3) Construction of new stone fences or maintenance of existing stone fences is encouraged.

(Ord. 2599, Amended, 12/18/2012; Ord. 2579, Repealed and Replaced, 03/20/2012)

3. LIGHTING STANDARDS

a. Applicability

i. This section is applicable to all minor or major development which results in increased use of public and private streets, public pathways and accessways, or parking lots, and lots in the PF and PNA zones.

ii. Temporary lighting for theatrical, television, and performance areas, and lights associated with special events are not subject to this section if no "development" occurs.

b. Standards for Approval

i. Public Pathways and Accessways

Low level lighting of less than 0.3 average foot-candles and with a maximum uniformity of illuminating ratio not to exceed 20:1 shall be required in all zones, except the PF and PNA zones, unless the applicant can show that no night use of such facilities is planned.

ii. Open Air Parking Lots

The following standards shall apply to open air parking lots in all zones, except the PF and PNA zones:

(1) General Provisions

(a) For multi-level parking facilities, the roof level shall be considered an open air parking lot.

(b) Open air parking lot lighting shall be designed to provide uniform lighting throughout the facility, but shall accomplish uniform lighting with the minimum lighting necessary for safety, security, and identification of necessary features.

(c) Open air parking lot lighting shall not produce light trespass by the direct illumination of adjacent and nearby properties or streets.

(d) Open air parking lot lighting shall not produce annoying or disabling glare at normal viewing angles.

(e) Where an open air parking lot is not anticipated to have a nighttime use, or where lighting would be out of character with the immediate environment, the reviewing authority may waive the illumination requirement.

(2) Equipment and Installation Standards

(a) Open air parking lot lighting shall employ the use of full cut-off fixtures as defined by the Illuminating Engineering Society of North America (IESNA), except in special design districts where a particular "period" or architectural style has been adopted, or as specifically allowed by the reviewing authority.

(b) Open air parking lot lighting shall use lamps whose emission is perceived as the warm (yellow/orange) end of the color spectrum, except under the circumstances permitted in this section.

(c) The maximum height of a pole mounted luminaire shall be 22 ft., or the height of the associated building, if less than 22 ft. in height.

(d) Fixtures shall be positioned or shielded so as to prevent light trespass onto adjacent properties, and glare from normal viewing angles.

(e) Luminaires and poles shall be coated with a decorative protective finish as approved by the reviewing authority or shall be manufactured of a colored composite material (such as fiberglass). Unpainted galvanized steel, stainless steel, or other "raw" metals are not acceptable.

(f) Luminaires and poles shall be architecturally compatible with the associated use.

(g) The use of wood poles shall be limited to parking lots in nature parks or similar natural areas.

(3) Lighting Standards

(a) Minimum level of illumination – 0.15 foot-candles on the pavement.

(b) Maximum level of illumination – 4.0 foot-candles on the pavement.

(c) Uniformity ratio 4:1.

(d) The reviewing authority may grant an exception to the lighting standards upon finding that a particular use warrants a higher level of illumination to protect the public safety and welfare. The discouragement of property damage crime is not a sufficient factor in and of itself to warrant an exception to the lighting standards.

(4) Prohibitions

(a) Mercury vapor lamp fixtures and lamps.

(b) Metal halide fixtures and lamps, unless the use thereof is warranted by exceptional security demands or the need for accurate color rendering, as determined by the reviewing authority. When approved, metal halide lamps shall be filtered.

(c) Laser source lights.

(d) Bare bulbs and strings of lights, except for traditional holiday lights during the respective holiday period.

(e) Flickering lights.

(f) Search lights.

(g) Overhead spans of wire.

(5) Curfew

The reviewing authority may impose a curfew on all, or part of, an open air parking lot’s lighting system, and may further impose the regulated system to be controlled by an automatic timer.

(6) Nonconforming Lights

(a) Open air parking lot light fixtures that are in service and which were lawfully installed prior to July 11, 2003, are exempt from the requirements of this section, except that the replacement of damaged or obsolete nonconforming light fixtures shall conform to the requirements of this section.

(b) Nonconforming lighting shall be replaced with a system that complies with this section when the remodeling of any use associated with an open air parking lot exceeds 50% of the value of that use, or the removal and renewal or expansion of an open air parking lot exceeds 50% of the area occupied by the pre-existing parking lot.

(7) Lighting Plan Required – Content

Proposals to illuminate an open air parking lot shall include a lighting plan. Lighting plans shall be prepared by a qualified professional specializing in illumination, and shall illustrate iso-illuminance circles expressed in foot-candles. Lighting plans shall be accompanied with all pertinent technical data for the proposed luminaires. The reviewing authority may require lighting plans to account for the influence of adjacent off-site lighting, reflection off vertical surfaces, window spill, shadow causing objects, and any other factors deemed relevant in evaluating the perceived level of illumination.

(8) Method of Measurement

(a) Field measurements of illumination levels shall be measured with an instrument having a spectral response similar to that of the human eye, following the standard spectral luminous efficiency curve adopted by the International Commission on Illumination.

(b) The height of a luminaire is the vertical distance between the surface of the ground and the lowest part of the luminaire.

iii. Outdoor Lighting in PF and PNA Zones

The following standards shall apply to outdoor lighting in the Public Functions (PF) and Parks and Natural Area (PNA) zones, except the luminaires and lighting systems listed below, or when used to light the following, are exempt from the requirements of this section:

(1) Illuminated signs.

(2) Lighting in swimming pools and other water features governed by Article 680 of the National Electrical Code.

(3) Building Code required exit signs.

(4) Lighting specifically for stairs and ramps.

(5) Temporary and seasonal lighting; provided, that individual lamps are ten watts or less.

(6) Lighting required and regulated by the Federal Aviation Administration, U.S. Coast Guard, or other federal or state agency.

(7) Flagpole, provided the lighting is a maximum of 150 watts per flagpole and is mounted within three ft. of the centerline of the base of the pole and aimed upwards.

(a) All outdoor lighting shall comply with either the prescriptive option or the performance option, below. The applicant may be required to pay for the services of a qualified professional civil or electrical engineer to review such submittals and the cost thereof shall be an additional fee charged to the applicant.

(i) Prescriptive Option

If the lighting is to comply with this prescriptive option, the installed lighting shall meet all of the following requirements:

(A) The maximum luminaire lamp wattage and shielding shall comply with Table 50.06.004-1.


TABLE 50.06.004-1: MAXIMUM WATTAGE AND REQUIRED SHIELDING
Zone	Fully Shielded	Shielded	Partly Shielded	Unshielded
PNA (Natural Area)	55	None permitted	None permitted	None permitted.
PNA (Developed Park Area)	70	20	13	Low voltage landscape lighting 50 watts or less.
PF (Nonpark Use)	150	70	39	Low voltage landscape lighting 50 watts or less.
Special Exception LOC 50.06.004.3.b.iv	450	150	150	Landscape and facade lighting 100 watts or less; ornamental lights on private streets and lanterns 40 watts or less.

(B) The total lighting power for the site shall be less than or equal to the allowed lighting power. The allowed lighting power shall be determined according to Table 50.06.004-2.


TABLE 50.06.004-2: ALLOWED LIGHTING POWER DENSITY (watts per sq. ft. (w/ft2) unless otherwise noted)
Determine the allowed lighting power for each application by multiplying the area in plan by the allowed lighting power density for the application. Only one lighting power allowance can be claimed for any area. The actual lighting power must be equal to or less than the sum of the allowed lighting power for all applications.
Lighting Application	Allowed Area	PNA (Natural Area)	PNA (Developed Park Area)	PF (Nonpark Use)	Special Exception LOC 50.06.004.3.b.iv
Hardscape	Paved area plus 5 ft. of the perimeter of adjacent unpaved land. Includes planters and landscaped areas less than 10 ft. wide that are enclosed by hardscape on at least 3 sides.	0.03	0.05	0.07	0.20
Building Entrances	Per door (stated values are watts, not watts per sq. ft.).	13	18	26	70
Building Entry and General Use Canopies	Canopy footprint	Not allowed	0.10	0.20	0.70
Vehicle Service Station Canopy	Canopy footprint	Not allowed	0.30	0.60	2.40
Ornamental Lighting	Entire site	Not allowed	Not allowed	0.010	0.04
Landscape Lighting	Landscaped area	Not allowed	Exempt	Exempt	Exempt
Building Facade Lighting	Nonresidential use	Not allowed	Not allowed	Not allowed	Exempt

(C) The maximum pole or mounting height shall not exceed the values listed in Table 50.06.004-3.


TABLE 50.06.004-3: MAXIMUM LIGHTING MOUNTING HEIGHT IN FEET
Zone	Lighting for Private Roads, Driveways, Parking, Bus Stops and Other Transit Facilities	Lighting for Walkways, Bikeways, Plazas and Other Pedestrian Areas	All Other Lighting
PNA (Natural Area)	20	8	4
PNA (Developed Park Area)	20	12	4
PF (Nonpark Use)	25	18	8
Special Exception LOC 50.06.004.3.b.iv	Height limit to be determined by special exception
Lighting mounted on buildings or other structures shall not exceed a mounting height greater than 4 ft. higher than the tallest part of the building or structure at the place where the lighting is installed, nor higher than 33.33% of the horizontal distance of the light from the nearest property line, whichever is less.

(D) Each luminaire shall be set back from all property lines at least three times the mounting height of the luminaire.

(A) Exception 1: If the luminaire is used for the purpose of street, parking lot or public utility easement illumination purposes and is located less than three mounting heights from the property line, the luminaire shall employ a house side shield (opposite the direction of any public right-of-way nearest the luminaire).

(B) Exception 2: If the subject property includes an exterior column, wall or abutment within 25 ft. of the property line, luminaire(s) partially shielded or better and not exceeding the lighting power allowed under Table 50.06.004-2: Allowed Lighting Power Density (but in no event exceeding 60 lamp watts) may be mounted onto the building facade or under or within an overhang or canopy attached thereto.

(ii) Performance Option

If the lighting is to comply with this performance option, the proposed lighting plan demonstrating compliance with the following standards shall be submitted by the applicant for review and approval by the City Engineer, and the City Engineer’s decision shall be the final decision of the City:

(A) The maximum percentage of direct uplight lumens shall be no greater than the amount allowed per Table 50.06.004-4: Performance Method.


TABLE 50.06.004-4: PERFORMANCE METHOD
Zone	Maximum Percentage of Direct Uplight Lumens (%)	Maximum Light Level at Property Line
Zone	Maximum Percentage of Direct Uplight Lumens (%)	Horizontal Plane at Grade (foot-candles – fc)	Vertical Plane Facing the Subject Site, from Grade to Mounting Height of Highest Mounted Luminaire (foot-candles – fc)
PNA (Natural Area)	0	0.01	0.02
PNA (Developed Park Area)	1	0.05	0.1
PF (Nonpark Use)	5	0.2	0.4
Special Exception LOC 50.06.004.3.b.iv	20	0.4	0.8

(B) The maximum light level at any property line shall be no greater than the values in Table 50.06.004-4: Performance Method, as evidenced by a complete photometric analysis including horizontal illuminance of site and vertical illuminance on the plane facing the site up to the mounting height of the luminaire mounted highest above grade. The City Engineer may accept a photometric analysis report, demonstration or sample, or other satisfactory confirmation that the luminaire meets the shielding requirements of Table 50.06.004-1: Maximum Wattage and Required Shielding. Luminaires shall not be mounted so as to permit aiming or use in any way other than the manner maintaining the shielding classification required herein.

(iii) Exception 1: If the property line abuts a public right-of-way, the analysis may be performed at the property boundary across the public right-of-way from the site.

(iv) Exception 2: If the abutting property owner agrees in writing to waive subsection 3.b.iii(7)(a)(ii)(B) of this section, and such consent is recorded in the official records of the county in which the abutting property is located, the maximum light level analysis shall be measured at the setback line of the abutting parcel.

(v) Exception 3: If unique site characteristics (topography, differences in grade between the subject property and the abutting parcel) make compliance impractical with the maximum light level requirements, an exception to this subsection may be granted by the City Engineer. The City Engineer may impose conditions of approval to mitigate any negative impacts resulting to the abutting parcel, based on best lighting practices and available lighting technology.

(b) Curfew. All prescriptive or performance based exterior lighting systems shall be controlled by automatic device(s) or system(s) that initiate operation at dusk and either extinguish lighting at the curfew times according to Table 50.06.004-5: Curfew Time, or reduce lighting density at the curfew time to not more than 50% of the requirements set forth in Table 50.06.004-2: Allowed Lighting Power Density.


TABLE 50.06.004-5: CURFEW TIME
Zone	Curfew Time
PNA (Natural Area)	8:00 PM (2000 hours) – 5:00 AM (0500 hours)
PNA (Developed Park Area)	8:00 PM (2000 hours) – 5:00 AM (0500 hours)
PF (Nonpark Use)	10:00 PM (2200 hours) – 5:00 AM (0500 hours)
Special Exception LOC 50.06.004.3.b.iv	Midnight (2400 hours) – 5:00 AM (0500 hours)

(i) Exception: Automatic lighting control systems or devices are not required for the following:

(A) When there is only one (conforming) luminaire for the site.

(B) Building Code required lighting.

(C) Lighting for ramps, steps and stairs.

(D) Uses that operate continuously or periodically after curfew.

iv. Special Exception for Lighting Fixtures and Systems Exceeding Subsection iii, Outdoor Lighting in PF and PNA Zones, Requirements

(1) The reviewing authority may allow site lighting systems to be installed, modified, or replaced that do not comply with subsection 3.b.iii of this section. Such lighting may include sports lighting systems (including but not limited to sport fields and stadiums, such as baseball field and football field lighting, tennis court lighting, and swimming pool area lighting), other very intense lighting defined as having a light source exceeding 200,000 lumens or an intensity in any direction of more than 2,000,000 candelas, construction lighting for public infrastructure and similar projects, emergency construction projects that require construction at night, bridges, building facade lighting to light portions of buildings over two stories high, and public monuments.

(a) Applicants shall demonstrate that the proposed lighting installation:

(i) Is within the PF or PNA zone.

(ii) Has no practicable alternative.

(iii) Has received every reasonable effort to mitigate glare, light trespass, and artificial sky glow, by application of best lighting practices or available technology, and supported by a signed statement from a registered civil or electrical engineer describing the mitigation measures. Such statement shall include calculations indicating the light trespass levels (horizontal and vertical at ground level) at the property line(s).

(b) The reviewing authority may impose conditions of approval to mitigate any negative impacts resulting to the abutting parcel(s), based on best lighting practices and available lighting technology.

v. Street Lighting

(1) Street lighting installations shall achieve criterion values listed in Table 50.06.004-6.


TABLE 50.06.004-6: CITY STANDARD CRITERIA FOR STREET AND ROADWAY LIGHTING (FOOT‑CANDLES – FC)
	PNA (Natural Area) Zone	R-3, R-5, R-7.5, R-6, R-10, and R-15, R-DD, PNA (Developed Park Area), PF and R‑W Zones	R-0, R-2, WLG R-2.5, WLG RLW I, IP, and CR&D Zones	GC, NC, MC, EC, HC, OC, WLG OC, WLG RMU and CI Zones	Special Exception LOC 50.06.004.3.b.iv
LOCAL STREETS	Not permitted	Intersections only*
Avg: Light Level	N/A	0.3 fc	0.3 fc	0.4 fc	0.4 fc
Avg: Min. Uniformity	N/A	6:1	6:1	6:1	6:1
Max: Min. Uniformity	N/A	40:1	40:1	40:1	40:1
NEIGHBORHOOD COLLECTORS	Not permitted	Intersections only*
Avg: Light Level	N/A	0.3 fc	0.4 fc	0.6 fc	0.6 fc
Avg: Min. Uniformity	N/A	4:1	4:1	4:1	4:1
Max: Min. Uniformity	N/A	20:1	20:1	20:1	20:1
MAJOR COLLECTOR/MINOR ARTERIAL	Not permitted
Avg: Light Level	N/A	0.3 fc	0.4 fc	0.6 fc	1.0 fc
Avg: Min. Uniformity	N/A	4:1	4:1	4:1	4:1
Max: Min. Uniformity	N/A	20:1	20:1	20:1	20:1
MAJOR ARTERIALS	Street lighting standards for major arterials shall be determined by the City Engineer, who may require an independent engineering study to determine the appropriate lighting system.
* Luminaires only within 150 ft. of the center point of an intersection.

(a) Exception: Federal or state requirements that require a higher illumination value than required by this Code.

(2) Street lighting systems shall be designed using the IES "Classical" horizontal foot-candle method per IES/ANSI RP-8-01, and as follows:

(a) The applicant shall demonstrate compliance with Table 50.06.004-6 by submitting to the City Engineer point-by-point calculations assuming 65% light loss factor for metal halide and 80% for LED, high pressure sodium, tungsten, fluorescent and induction lamp sources. Submitted street lighting plans shall indicate luminaire types and locations and provide isocandle plots including statistical summaries of roadway lighting.

(b) Luminaires shall be fully shielded.

(i) Exception: Historic or architectural street lights located in a designated design district.

(c) The City Engineer may require street lighting that deviates from Table 50.06.004-6: City Standard Criteria for Street and Roadway Lighting upon finding that a particular street, or portion thereof, warrants a higher level of illumination to protect the public safety and welfare. The City Engineer’s decision shall be the final decision of the City. The discouragement of property damage crime is not a sufficient factor in and of itself to warrant the deviation from Table 50.06.004-6.

(Ord. 2579, Repealed and Replaced, 03/20/2012)