Coeur d'Alene, ID Outdoor Lighting: Billboard Lighting (2026)
Key Facts
- Brightness cap
- 0.3 foot candles above ambient light
- Measuring distance
- 100 to 250 feet, set by Sign Area
- Dimming
- Automatic, tied to ambient light conditions
- Message hold
- Minimum eight seconds
- Rotation limit
- Nine rotations per minute
- Electrical label
- Permit number, voltage, amperage, one inch letters
Summary
In the City of Coeur d'Alene, Idaho, an illuminated Sign, including an Electronic Message Display, must dim automatically to ambient light and cannot run more than 0.3 foot candles above ambient, measured from 100 to 250 feet away depending on Sign Area. Lighting on a relocated Billboard must aim at the display surface and be shielded where needed (§ 15.50.400).
o. Any lighting must be directed toward the display surface and, if necessary, shall be shielded to prevent light from interfering with the quiet enjoyment of nearby properties. ... ... D. Illumination and Electronic Message Displays. 1. Illumination must not create an unsafe or hazardous distraction to a motorist, a pedestrian, or the general public. 2. Any illuminated or lighted Sign, including an Electronic Message Display, shall be equipped with technology that automatically dims the electronic message center according to ambient light conditions. Display shall not operate at brightness levels of more than 0.3 foot candles above ambient light, as measured using a foot-candle meter at the following distances: SIGN AREA DISTANCE 0-100 square feet: 100 feet 101-350 square feet: 150 feet 351-650 square feet: 200 feet 651-672 square feet: 250 feet
Full Breakdown
Section 15.50.400(D) sets the lighting rules for every illuminated sign in the City of Coeur d'Alene, and relocated Billboards face an added lighting rule in § 15.50.400(C)(4)(o). Illumination cannot create an unsafe or hazardous distraction to a motorist, a pedestrian, or the general public. An illuminated Sign, including an Electronic Message Display, needs technology that dims automatically according to ambient light conditions, and the display cannot run at more than 0.3 foot candles above ambient light. The foot-candle meter reading is taken at a distance set by Sign Area: 100 feet for 0-100 square feet, 150 feet for 101-350 square feet, 200 feet for 351-650 square feet, and 250 feet for 651-672 square feet.
For a relocated Billboard, any lighting must be directed toward the display surface and, if necessary, shielded to prevent light from interfering with the quiet enjoyment of nearby properties. Council's approval findings for a relocation include that the Billboard complies with the City's illumination and Electronic Message Display standards (§ 15.50.400(C)(3)(i)(8)).
Electronic displays carry timing limits that work alongside the brightness cap. Messages hold at least eight (8) seconds, transitions run no more than one-half of one second, no sign can flash or blink, and no videos or animations are allowed. A rotating sign is capped at nine (9) rotations per minute. On the hardware side, a sign in an area accessible to vehicles or pedestrians must meet the Idaho electrical code for height and clearance. A sign that uses electricity carries, in plain view and in letters at least one inch (1") high, its permit number and power consumption, including voltage and amperage, and the Underwriters Laboratory label must be plainly visible. A State electrical permit is required when the adopted electrical code calls for one (§ 15.50.360). Utilities for a relocated Billboard go underground when power is on the property or within seventy-five feet (75').
Violations & Fines
Lighting outside these limits is a Sign Code violation: a civil citation with a penalty set by Council resolution, then a misdemeanor citation under § 1.28.010 if the sign is not brought into compliance within thirty (30) days. When the Building Official judges a sign an imminent hazard to lives or property, the City can remove it immediately with or without notice (§ 15.50.370(E)). The City Clerk can revoke a sign permit if a violation is not cured within five (5) days of written notice (§ 15.50.340).
Frequently Asked Questions
How bright can a digital sign be in Coeur d'Alene?
Do billboard lights have to be shielded?
Can an electronic sign flash or show video?
What information must an electric sign display?
Do these lighting rules cover an ordinary business sign?
Sources & Official References
Other rules in Coeur d'Alene
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