Chapter 19.50


19.50.010    Introduction.

19.50.020    Street illumination standards.

19.50.010 Introduction.

The items herein contained are the street illumination standards, conditions, and specifications of the city of Ritzville, and are to be considered in conjunction with other provisions of city plans and/or regulations governing public street illumination. These are minimums only and may be increased or altered to fit particular site conditions and/or situations. The city by this reference adopts the latest edition of the “Standard Specifications for Road, Bridge and Municipal Construction” (hereinafter referred to as the “standard specifications”) as prepared by the Washington State Department of Transportation and the Washington State Chapter of the American Public Works Association to govern all aspects of street illumination system improvements including but not limited to materials, labor, equipment for installation, workmanship, testing, etc. Any material, design, standard, or testing not specifically addressed within this document shall be as per the standard specifications. The city also by this reference adopts the latest version of the “Standard Plans” (engineering drawings hereinafter referred to as the “standard plans”) published by the Washington State Department of Transportation. (Ord. 2001 § 1, 2006).

19.50.020 Street illumination standards.

All new commercial and industrial developments, major subdivisions, short subdivisions, and/or binding site plans shall provide street lights in accordance with the standards provided below. Said facilities shall be owned and operated by the city.

A. Street illumination system designs are to be prepared by a licensed engineer experienced with illumination design. Calculations should include luminaire spacing, illumination level, line losses, power source and other necessary details for the electrical and physical installation of the street illumination system. The standard specifications shall be used.

B. All street intersections shall have provisions for illumination, so as to provide minimum illumination as set forth in WSDOT Publication M51-02 (Traffic Manual).

C. All developments shall include conduit installed so as to provide adequate capacity for future installation of complete street illumination as set forth in these standards and in WSDOT Publication M51-02. Positioning of conduit shall be determined by the city. All conduit installed solely to comply with future street illumination upgrade requirements shall have at least a single ground conductor (minimum #10AWG copper stranded type) installed.

D. All workmanship, materials and testing shall be in accordance with the current edition of the WSDOT/APWA, MUTCD, National Electrical Code (NEC) or this title unless otherwise specified below. In cases of conflict, the most stringent guideline shall apply.

E. Electrical permits and inspections are required for all street illumination installations within the city of Ritzville. The contractor is responsible for obtaining said permits prior to any type of actual construction. These permits are available from the State Department of Electrical Inspections (Department of Labor and Industries).

F. Any modification to approved plans shall be reviewed and approved by the city prior to installation.

G. Street illumination shall be required at the following minimum levels and shall meet the minimum standards provided below:

Street Classification

Horizontal Foot Candles

Maximum Spacing


1.5 FC

150 feet


1.0 FC

300 feet

Local Access

0.3 FC

300 feet

H. All street illumination shall be on 240 volt, single phase systems. The exact location of the power source should be indicated together with the remaining capacity of that circuit. System continuity and extension should be considered.

I. Contractor cabinets equipped with electrical meters, time clocks, circuit breakers and other required components are required on commercial installations of five or more street luminaires.

J. All street illumination, wiring and service connectors shall be located underground except in residential areas where existing power distribution poles exist.

K. Particular attention shall be given to locating luminaires near intersections, at all street ends and at pedestrian, bicycle and/or equestrian crossings. (Ord. 2001 § 1, 2006).