THe trinity subsurface blog

What happens between the site walk and the deliverable: how Trinity scopes a locate, designates lines in the field, and turns marks into a drawing.

Concrete scanning inside a parking garage: finding rebar, post-tension cable and conduit in a stacked concrete structure before repair work begins.

Thousands of utility strikes happen in the US every year. How they happen, what follows a strike, and the steps that keep a crew from causing one.

The GPR units, electromagnetic locators, vac trucks, jetters and camera systems a Trinity crew carries, and what each one is actually good for.

Leaks, blockages and root intrusion all wear a sewer down. How CCTV inspection determines whether a pipe needs cleaning, lining or a point repair.

Millions of miles of buried utility, plus voids, tanks, foundations and graves. What else is under a site besides the lines you were looking for.

Locating gives horizontal position. A vacuum-excavated test hole gives depth, size and material, taking utility data to Quality Level A.

EV charging, solar arrays and grid upgrades all land on top of existing utilities. How locating and relocation make room for new infrastructure.

Over 20 million manholes sit in US roads and sidewalks. The hazards they present, from confined space entry to failing covers, and how crews work safely.