How deep should sprinkler trenches be?

Sprinkler main lines should be 8-12 inches deep, and lateral lines should be 6-8 inches deep. In Southern Utah, burying lines at least 8-10 inches protects them from occasional freezing. Always check local code requirements before digging.

What is the best equipment for digging sprinkler trenches?

A walk-behind trencher is the most efficient tool for sprinkler trenches. It cuts a narrow, clean trench at a consistent depth much faster than hand digging. For hard Southern Utah soil with caliche, a mini excavator may be needed. Rent trenchers from Beehive Equipment.

Can I dig sprinkler trenches myself?

Yes. With a rental trencher, most homeowners can trench their entire sprinkler system in a day. Call 811 before digging to mark utility lines. Beehive Equipment provides trencher operation training with every rental.

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How to Dig a Trench for a Sprinkler System

Equipment guide and technique tips for irrigation trenches.

8 min read

January 23, 2026

Sprinkler system trench digging guide.

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How to Dig a Trench for a Sprinkler System

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