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Private Utility Locating in Wilmington, DE

EM and GPR locating across Wilmington, Newark and New Castle County.

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Private utility locating in Wilmington

Trinity Subsurface is headquartered in Wilmington, at 335 Water Street, and locates private underground utilities across New Castle County and the rest of Delaware. Our technicians use EM equipment and ground penetrating radar to find the lines Miss Utility of Delmarva does not mark, then deliver a field sketch within 24 hours.

  • Utility Locating: Our team offers full service utility locating for your site that goes beyond 811 services that only locate public utilities. Protecting all of the utilities at your site is crucial prior to excavation, installation, boring or drilling. We use a combination of electromagnetic (EM) scanning, ground penetrating radar (GPR) and additional technologies to mark and map out existing utility lines. We provide high-accuracy with detailed maps and notes. Prevent damages, save time, and avoid unexpected costs.
  • Utility Mapping: Our team provides maps in a variety of formats, including PDFs, KMZ and CAD files. In addition, we can capture accurate GIS data points of underground utilities that can be integrated into existing data sets for improved project planning, communication and facility management.
Utility field sketch on tablet

Why Delaware sites need a private locate

Delaware law requires a call to 811 before digging, but the utility companies mark only their own lines, usually to the meter. Private lines are the property owner's to find: campus electric and communications, site lighting, private water and fire lines, storm and sanitary laterals, and abandoned services on redeveloped sites around Wilmington's riverfront and industrial corridors.

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Technology and Methodology

Our team relies on a variety of technologies and methods to fully examine your site. We use electromagnetic scanning, ground penetrating radar and more to get the best info on subsurface utilities and underground infrastructure.

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Full Suite of Services

Our team offers multiple services to support your projects on top of utility locating and concrete scanning. Ask us about additional utility investigation services we can offer for further support beyond GPR locating and scanning.

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Building Relationships

We aim to provide ongoing support for your current and upcoming projects. Whether you're just starting design or running into unexpected utilities during construction, we'll investigate and assist with any step of your project.

AREA CONTACTS

Wilmington / Delaware - (302) 407-3697

WILMINGTON-AREA PROJECTS

An image of GPR concrete scanning technicians at a parking garage.

MARINE CONTAINER TERMINAL - WILMINGTON: SIX PRIORITY AREAS DESIGNATED, SKETCH NEXT DAY

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ELEMENTARY SCHOOL - HOCKESSIN: EXCAVATION AREA CLEARED SAME DAY

An image of a Trinity Subsurface utility locating technician using GPR.

UNIVERSITY OF DELAWARE - NEWARK: RECURRING QUALITY LEVEL B DESIGNATING

Wilmington utility locating FAQs

Does Miss Utility mark private lines in Delaware?

No. Utility owners mark their own facilities, usually up to the meter. Lines past that point need a private locator.

How fast can Trinity Subsurface get to a Wilmington site?

Our headquarters is in Wilmington, so we can often mobilize quickly. Most requests are on site within three business days. Call (302) 407-3697.

Which areas does Trinity Subsurface cover from Wilmington?

All of Delaware, from Wilmington, Newark and New Castle County south to Dover and Sussex County.