Application
Utility Vault Cutting & Access
Cutting slab and vault openings for utility vaults, pull boxes, and underground access lids in pavement and floors.
Utility vaults, pull boxes, and access structures need openings cut in the surrounding pavement or floor — to set a new vault, enlarge an access lid, or reach a buried structure for maintenance. These cuts often sit in active drive lanes and near live utilities, so they demand clean isolation of the opening and careful locating of what's below.
Crews we route work to saw the vault opening square, remove the concrete, and prepare the edges for the vault frame or lid. Cutting a defined rectangle keeps the surrounding pavement intact and gives the vault a clean seat.
Cutting and removal methods
The vault footprint is isolated with slab sawing and removed via slab removal. Vault walls are cut with wall sawing, and access penetrations for conduit are cored with concrete core drilling. Related trenching uses trench cutting.
Concrete scanning and utility locating protect the live lines that surround most vault work.
Practical considerations
- Utilities are located before cutting — vault work is surrounded by live services.
- Openings are cut square so the vault frame or lid seats cleanly.
- Wet-cutting controls silica per OSHA 1926.1153; work in drive lanes is phased for traffic.
- In Houston's high water table, vault excavations may require dewatering.
Live utilities all around
Vault openings sit among energized and pressurized lines. Locating and scanning before cutting is not optional.
Utility vault FAQs
- Can you cut an opening to set a new utility vault?
- Yes. The vault footprint is saw-cut, the concrete removed, and the edges prepared so the vault seats squarely in the surrounding pavement or floor.
- How do you protect nearby utilities?
- Utility locating and GPR scanning map the live lines around the opening before any cutting begins.
- Can you work in an active drive lane?
- Yes, with phasing and traffic protection so the surrounding lanes keep operating while the vault opening is cut.
- What about groundwater in the excavation?
- In Houston's high water table, vault excavations may need dewatering, coordinated with the general contractor.
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