At the Opened Location
- Observed position and exposed depth
- Visible utility size, material or markings
- Existing separation from nearby features
- Potential interference with planned work
Expose what's underground before your project moves forward.
Daylighting uses controlled excavation to uncover buried pipes, conduits and other utilities so crews can visually confirm what's there. Hydro Excavation San Diego supports utility exposure for crossings, tie-ins, upgrades and construction planning throughout San Diego County.
Utility markings are critical for planning, but they don't reveal every field condition. Actual depth, vertical separation, crossing geometry and the condition of a buried facility may still need to be checked.
Daylighting provides a controlled way to make specific underground facilities visible. It can give contractors clearer information before a trench, bore, foundation excavation or utility connection reaches a conflict point.
Field observations are location-specific. Surveying, utility ownership confirmation and formal inspection documentation are separate services unless included in the agreed scope.
Hydrovac daylighting typically uses pressurized water to loosen soil while a vacuum system removes the displaced material. This creates controlled access around a buried facility without relying solely on mechanical bucket excavation at the exposure point.
Daylighting is powerful because crews can observe what's underground directly. But a visible location should not be mistaken for a complete utility survey.
Expose known crossing points to help evaluate the actual position of existing infrastructure before drilling or excavating nearby.
Reveal existing lines and structures where a new installation must approach, connect to or work near a buried system.
Improve visibility in areas where multiple underground utilities create limited space and complex excavation conditions.
Support electrical, communications, water and other infrastructure improvements near existing underground facilities.
Open a controlled area around a buried utility for an authorized crew to evaluate or repair the exposed facility.
Provide field visibility at key design conflict points before committing to larger excavation activities.
Review available plans, markings, nearby obstacles, site access and the specific question the exposure should answer.
Use appropriate equipment and controlled methods to reveal the utility while following applicable safe-excavation practices.
Allow the responsible project personnel to identify relevant visible conditions and determine the next steps.
Coordinate protection, backfill, surface repair or further work according to the approved project scope.
Send the locations to be exposed, the reason for exposure and any available utility information. These details help define equipment access, anticipated excavation extent, spoil handling and the services included.
Discuss Your Project →Daylighting means uncovering a buried utility so the facility can be seen and its local position or other visible conditions can be verified. Hydrovac excavation is one method used to perform this exposure.
The terms overlap. Potholing often refers to individual test holes used to verify a utility at specific points. Daylighting more broadly describes making buried facilities visible, whether at test holes, crossings, tie-ins or other targeted exposure areas.
No. Exposure establishes conditions only where the line is uncovered. Its depth or alignment may change elsewhere, so additional exposure points or other methods may be needed.
No. Required 811 notifications, utility locating and owner coordination remain essential. Daylighting supplements those activities by allowing visual observation at selected locations.
It may be possible once the surface is opened using an appropriate cutting or removal method. Demolition, traffic control, backfill, disposal and surface restoration should be confirmed in the written scope.
Tell us what you need exposed and where the next phase of work is planned.