Utility Locating Before Court Construction in New Jersey

Yes. Any excavation deeper than surface soil in New Jersey — and a court base easily qualifies — requires an 811 utility locate request before digging starts. The utility owners then mark gas, electric, water, and communication lines on your property with flags or paint, free of charge. Building the wait time into your schedule matters: marks typically take a few business days to come back, and a project that skips this step to save a few days is gambling with a much bigger delay if a crew hits a live line.

811 covers utility company-owned lines, generally up to your meter or service entrance — it does not mark private lines on your own property. That means irrigation system pipes and wiring, invisible pet fencing, low-voltage landscape lighting cable, French drains, septic lines, and private wellheads are all your responsibility to identify. If you've had any of those installed, pull the as-built plans or the original installer's layout before excavation starts; if you don't have them, a private locator can sweep the area for a few hundred dollars, which is cheap insurance against cutting an irrigation main mid-pour.

Both are common enough in older New Jersey homes that we ask about them on every site visit. An abandoned underground oil storage tank that was never properly decommissioned can trigger New Jersey DEP reporting and remediation requirements if it's uncovered during excavation — and on a home built before the 1980s, there's a real chance one exists even if it's not on any record you have. A septic tank or leach field can't be built over or compacted over at all, and local health department setback rules for septic components are separate from, and in addition to, your town's zoning setbacks. Both are worth confirming before a court layout is finalized, not after an excavator hits one.

It varies by what's struck, but none of the outcomes are good. A gas line strike can halt work for the rest of the day while the utility responds, and in a bad case forces an evacuation. An electric line strike is a real safety hazard for the crew. A water or sewer line strike is usually just an expensive, disruptive repair. If 811 was called and lines were marked but a crew dug outside the marked area or ignored a mark, the contractor is typically on the hook for repair costs; if 811 was never called, liability and consequences get considerably worse. This is one of the reasons we treat a completed, honored utility locate as a hard prerequisite before any excavation begins, not a formality.

Plan on the marking request itself taking a few business days once submitted, and build that into the front of your schedule alongside permitting rather than after it — see our guide on how long a court build takes for how the phases stack up. If your site has any private lines — irrigation, invisible fencing, a septic system, a suspected old oil tank — add time for a private locate or record search on top of the standard utility marks, since those aren't part of the 811 response and can't be rushed once excavation is scheduled.