Street Lighting Contractor Guide

Section 1. Applicability of Guidelines

These guidelines apply to all new street lighting systems, and retrofitted lighting systems where practical, within the City of Loveland. Loveland Water and Power shall design and construct all new street lighting systems. Loveland Water and Power manages and stocks all parts and equipment for our approved streetlights. Loveland Water and Power designs and installs all streetlights for the City of Loveland. 

Section 2. Street Classifications

All City streets can be classified as arterial, collector, or local streets. Arterial streets are defined as that part of the street system which serves as a city's principal network for through-traffic flow. Collector streets are defined as those streets carrying through-traffic between major and local streets. Local streets are mostly residential and do not carry through-traffic.

Loveland streets are designated arterial, collectors, and locals as defined by the Community Services Street Design Planning Standards listed below. Loveland's standard lighting systems are listed in Section 3 according to these Street Classifications. The appropriate Street Classification is determined from the Street Land Use Map.

Street Classification	Design Speed	Minimum Street Width
Major or Minor Arterial	50-55 mph	58-88 feet
Major Collector	35-40 mph	38-44 feet
Minor Collector	30 mph	36-44 feet
Local	20-25 mph	28-34 feet

Section 3. Lighting Systems Descriptions

These lighting standards apply to all new lighting systems. The refractor style cobra with a Type-3 distribution pattern mounted on direct buried fiberglass poles is the standard construction for collector and arterial streets. An decorative fixture with a Type-3 distribution mounted on direct buried fiberglass poles will be used on residential streets.

When appropriate, poles or luminaries that are equivalent to those described below may be substituted at the discretion of the Power Operations Manager or designee.

Street Classifications	Lighting System
Major Arterial	400-W Cobra Fiberglass Pole 38-foot Mounting Height
Minor Arterial	250-W Cobra Fiberglass Pole 32-foot Mounting Height
Major Collector	150-W Cobra Fiberglass Pole 32-foot Mounting Height
Minor Collector	70-W Decorative Fiberglass Pole 15-foot Mounting Height
Local Residential and New Residential	70-W Decorative Fiberglass Pole, 15-foot Mounting Height

Section 4. Street Lighting Spacing Guidelines

The spacings listed below are based on staggered, opposite, or one-sided layout patterns. Refer to sketches at the end of the document. All spacings are based on providing maintained light levels that include a light loss factor of 0.81. This factor accounts for dirt depreciation, which is the loss of light due to dirt accumulating in the luminaire over time, and lumen depreciation, which is the loss of light output of the lamp as it ages.

Applying the Guidelines to Cobra Luminaries

Whenever possible, cobra luminaries will be located directly over the curb. This can be accomplished in most situations by using a mast arm between 4 and 8 feet long. In some cases, physical constraints or conflicts with existing underground utilities may require a greater setback from the street.

The decorative luminaries should be set back within six (6) feet from the curb, if possible. Physical constraints or existing utilities may require a greater setback.

Street Lighting Spacing Guidelines

60-90 feet curb-to-curb width

40-75 feet curb-to-curb width

Local Residential Streets

Local residential streets are lit with two different types of lighting systems: the post/porch lighting system, and the posttop system. The "posttop system" refers to the 70-watt acorn fixtures on fiberglass poles.

The post/porch lighting system exists in the older parts of Loveland that do not have other lighting systems. This system is based on the post/porch lights being unmetered so that the City pays the cost of operating the lights. The post/porch lighting system is designed to light driveway entrances and sidewalks while producing minimal glare to residents. This system has been installed in previously developed areas of the City and is not available in new developments.

The 70-watt posttop system should be used for new local residential streets adjacent to, and within, land under development.

Street Lighting Pattern Convention

Two types of patterns can be found in this guide: one-sided, staggered, and opposite spacing. The two arrangements shown below show the one-side and opposite conventions.