Construction hours in Prior Lake, MN — sometimes called construction noise rules or contractor work-hour ordinances — set when contractors can run power tools, hammers, and heavy equipment.
Prior Lake limits construction noise audible at adjacent residential property to the daytime hours under Minnesota Rules Chapter 7030 and the city's public nuisance ordinance. Routine construction work outside 7 a.m. to 10 p.m. risks a misdemeanor noise citation.
Prior Lake does not adopt a separate construction noise schedule but enforces Minn. Rules 7030.0040 through the public nuisance and noise provisions in City Code Chapters 5 and 7. The state daytime threshold of L50 60 dBA at residential receiving property runs 7 a.m. to 10 p.m.; outside that window construction must meet the much stricter nighttime caps of L50 50 dBA. In practice, the police and code enforcement (952-447-9800) treat hammering, pneumatic tools, and powered equipment audible at neighbors before 7 a.m. or after 10 p.m. as a citable nuisance. Emergency repairs to utilities, gas lines, or structures threatening public safety are exempt.
Construction noise outside the allowed window without a permitted exception is treated as a public nuisance misdemeanor with fines up to $1,000 and/or 90 days in jail under Minn. Stat. §609.74. Stop-work orders may be issued under City Code Section 1-15 for ongoing violations.
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