Wisconsin Hydrovac & Excavation Regulations
Excavation laws, 811 requirements, and licensing information for Wisconsin.
Wisconsin requires all excavators to contact Diggers Hotline at least 3 working days before digging. The state's One-Call Law provides comprehensive rules for underground facility damage prevention.
Hydrovac excavation is widely used in Wisconsin for utility work in the Milwaukee and Madison metro areas as well as rural pipeline projects. Frozen ground conditions during winter make vacuum excavation a preferred method.
Call Before You Dig: Diggers Hotline
Phone: 811 | Notice Required: 3 working days
Visit Diggers Hotline WebsiteTolerance Zone
Reasonable care required within 18 inches of marked underground facilities.
Key Regulations
One-Call Law
Establishes mandatory notification and excavation safety requirements.
Wisconsin Statutes 182.0175
Extended Notification Period
Wisconsin requires 3 working days advance notice for utility marking.
Transmission Facility Provisions
Enhanced safety requirements for excavation near high-pressure transmission pipelines.
Penalties for Violations
Wisconsin imposes civil forfeiture for excavation violations.
Maximum Fine: $2,000 per violation
- ●Civil liability for all repair costs and damages
- ●Possible Class A forfeiture for repeat violations
Licensing Requirements
- Wisconsin Dwelling Contractor certification or appropriate trade license
- Municipal permits and business licenses
- Workers compensation and general liability insurance
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