Iowa Hydrovac & Excavation Regulations
Excavation laws, 811 requirements, and licensing information for Iowa.
Iowa requires all excavators to contact Iowa One Call at least 48 hours before any excavation activity. The Iowa One-Call Law provides comprehensive rules for underground facility damage prevention.
Hydrovac excavation is used throughout Iowa for utility and pipeline work, particularly in areas with high water tables and heavy clay soils. The state encourages the use of non-destructive excavation methods near marked facilities.
Tolerance Zone
Excavators must use reasonable care within 18 inches of marked underground facilities.
Key Regulations
Iowa One-Call Law
Requires notification before excavation and establishes safe digging standards.
Iowa Code Chapter 480
Facility Owner Response
Facility owners must mark locations within 48 hours of receiving notification.
Excavation Near Pipelines
Additional requirements apply for excavation near high-pressure gas pipelines.
Penalties for Violations
Penalties for violating Iowa excavation laws.
Maximum Fine: $2,500
- ●Simple misdemeanor charges
- ●Civil liability for damages
Licensing Requirements
- Iowa contractor registration as required
- Compliance with Iowa Utilities Board regulations
- General liability insurance coverage
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