When a crew needs to expose a few crossings, the instinct is often to grab shovels. Labor is already on site, and a hydrovac truck is a line item you have to call in. On a single shallow hole, hand digging can genuinely be the right call. On anything past that, the comparison shifts fast.
Speed changes the whole equation
A hydrovac crew exposes in minutes what a hand crew digs in hours. That is not a small efficiency. When potholing sits on the critical path, every crossing you clear early is a trade you unblock behind it. A day of hand digging that turns into an afternoon of hydro excavation can pull an entire schedule forward.
The risk line most estimates skip
Hand digging still puts a metal tool near a live utility, swung by someone who is tired by the third hole. Hydro excavation removes that failure mode entirely. Water and vacuum cannot nick a cable or crack a service line. On work near gas or fiber, that difference is the entire reason the method exists.
- Labor: fewer crew hours tied up in slow, careful digging.
- Schedule: crossings cleared in a day instead of a week.
- Risk: no mechanical contact with the utility, so no strike exposure.
- Cleanup: the spoil leaves in the debris tank, not in a pile you backfill.
The cheapest hole is the one that does not cut a line you have to pay to repair.
None of this means a truck for every hole. It means that once a job has volume, depth, or a live utility in play, the rate sheet stops telling the whole story. Describe the site and we will tell you honestly which way makes sense.