Before any excavation in Virginia—whether you’re digging a fence post or excavating for a highway project—state law requires notification to Virginia 811 (Miss Utility). This guide covers everything Virginia contractors need to know about 811 requirements, the locate process, tolerance zones, and how to stay compliant while keeping your project on schedule.
Virginia’s Dig Law: What It Requires
The Virginia Underground Utility Damage Prevention Act (Code of Virginia §56-265.14 through §56-265.32) is clear: anyone who excavates must notify Miss Utility. “Excavation” means any operation that moves earth—including digging, trenching, drilling, augering, boring, tunneling, scraping, and even hand digging.
Key requirements:
- Submit a locate request at least 48 business hours before excavation (not calendar hours—weekends and holidays don’t count)
- Wait for all utilities to respond with marks before beginning work
- Marks are valid for 15 working days—after that, you must request a re-mark
- Excavation within the 24-inch tolerance zone around marked utilities must use “careful and prudent” methods
- Emergency excavations (utility breaks, gas leaks) can proceed immediately but must still notify 811 as soon as practicable
How to File a Virginia 811 Locate Request
- Call 811 or 1-800-552-7001 (24/7 service)
- Online: Submit at va811.com (registered contractors only)
- Provide: your name, company, phone, excavation address, type of work, and start date
- Receive a ticket number—keep this with your project documentation
- Wait 48 business hours for utility companies to mark their lines
- Verify all utilities have responded (check positive response at va811.com)
- Begin excavation only after all marks are in place
Understanding Utility Marking Colors
The APWA (American Public Works Association) uniform color code is used nationwide, including Virginia:
| Color | Utility Type | Examples |
|---|---|---|
| Red | Electric | Dominion Energy, NOVEC |
| Yellow | Gas / Oil | Virginia Natural Gas, Columbia Gas |
| Orange | Telecom / Cable | Cox, Verizon, Lumen |
| Blue | Water | City water departments |
| Green | Sewer / Drain | HRSD, city sewer |
| Purple | Reclaimed Water | Irrigation systems |
| White | Proposed Excavation | Your dig area (you mark this) |
| Pink | Survey / Temp Marks | Surveyor reference points |
The 24-Inch Tolerance Zone
Virginia law defines a tolerance zone of 24 inches on either side of a marked utility (creating a 4-foot total window). Within this zone, excavation must be performed using methods that won’t damage the utility. The law says “careful and prudent” methods—but doesn’t specifically define what that means.
In practice, most Virginia municipalities, VDOT, and utility companies interpret “careful and prudent” as requiring hand digging or hydro excavation within the tolerance zone. Mechanical excavation (backhoe, trencher) within 24 inches of a marked utility is widely considered non-compliant, even though the law doesn’t explicitly ban it.
Hydro excavation is the ideal tolerance zone method because it’s faster than hand digging and completely non-destructive to utilities.
Penalties for 811 Violations in Virginia
- Civil penalty: Up to $2,500 per violation for failing to notify 811 (§56-265.32)
- Damage liability: Full cost of utility repair, service restoration, and any consequential damages
- Criminal charges: Possible if a violation results in serious injury or death
- OSHA penalties: Up to $15,625 per serious violation (federal, applies in Virginia)
- Project suspension: VDOT can halt your project until compliance is verified
What 811 Doesn’t Cover
Important: 811 only locates utilities owned by member utility companies. It does NOT locate:
- Private utility lines (gas, electric, water from the meter to the building)
- Irrigation systems and sprinkler lines
- Septic systems and private sewer laterals
- Underground storage tanks
- Abandoned utilities that have been disconnected but not removed
For areas with potential private or undocumented utilities, potholing with hydro excavation is the only way to safely verify what’s underground.
Stay Compliant on Every Dig
Beach HydroVac helps Virginia contractors stay 811-compliant while keeping projects on schedule. Our hydro excavation and SUE Level A verification services are the safest, fastest way to excavate within tolerance zones. Contact us or call 757-510-5220.