Quiet hours in Thornton, CO β also called the noise ordinance, nighttime noise rules, or residential quiet time β define the hours during which excessive noise is prohibited.
Thornton enforces quiet hours 10 PM to 7 AM. The I-25 corridor through Thornton generates traffic noise regulated by CDOT sound barriers. Newer developments in north Thornton may experience construction noise from rapid growth.
Thornton municipal code establishes quiet hours and residential noise limits. Colorado Revised Statutes Β§18-9-106 provides statewide enforcement for unreasonable noise as a Class 1 petty offense. Most Colorado cities set residential limits around 55 dBA daytime, 50 dBA nighttime at the property line. Exemptions for emergency vehicles and city operations. CDPHE handles industrial noise complaints at the state level.
First offense: warning or citation $150 to $500. Repeat violations may escalate. Class 1 petty offense under CRS Β§18-9-106: up to $500 fine.
Thornton, CO
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Thornton, CO
Thornton requires permits for retaining walls above a certain height, typically 4 feet. Engineering review may be required for taller walls.
Thornton, CO
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