TBunney’s Inc. delivers precise trench backfilling for utilities and civil work across Arizona—restoring structural support, protecting buried assets, and returning surfaces to service quickly. From bedding and shading around pipe to controlled compaction and final surface reinstatement, we build backfill that lasts.
NNew to Bunney’s? Learn who we are and explore our capabilities.
Why Choose Bunney’s Inc.
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Arizona-ready methods: Programs tailored for caliche, desert sands, heat, and monsoon conditions.
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Safety & quality control: Procedures aligned with our Safety program; density testing and documented QA/QC.
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End-to-end delivery: Bedding/shading, lifts and compaction, CLSM (flowable fill), pavement section rebuild, and site restoration.
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Coordination with trades: We work seamlessly with utility, telecom, and civil crews; see our mechanical services for tie-ins.
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Proven work: See similar scopes in our project portfolio.
Need non-destructive exposing before you backfill? See Hydro Excavation and Potholing (Utility Daylighting).
What We Backfill (Typical Applications)
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Water, sewer, and reclaimed mains/services
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Power, telecom, and fiber conduit banks
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Gas distribution crossings and laterals
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Drainage culverts, catch basins, and utility crossings
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Facility & street repairs after emergency digs or new installs
Materials & Methods (Matched to Your Plans)
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Bedding & shading: Washed sand or select granular around pipe/conduit for protection and grade control.
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Select/native backfill: Screened native or imported aggregate to meet gradation and plasticity requirements.
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CLSM / Flowable fill: Controlled low-strength material for encasement, void filling, and rapid pavement reopening.
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Layered compaction: Lift thickness and effort per spec; attention at joints, haunches, and around structures.
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Surface reinstatement: Aggregate base, asphalt, or concrete panel replacement coordinated with your section.
Our Process
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Pre-task planning – Review drawings, utility clearances, traffic control, and compaction criteria.
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Bedding & initial lifts – Place bedding/shading, set depth and alignment, and compact to spec.
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Backfill in lifts – Compact each lift; adjust moisture and verify density with field tests.
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Surface rebuild – Replace base and pavement or concrete slab to the approved section.
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QA/QC & closeout – Density reports, photos, and daily logs for your records.
Want a turnkey approach? Add periodic inspections and small-works support via facility maintenance services
Arizona-Specific Considerations
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Caliche & hardpan: May require moisture conditioning and specialized compaction to reach target density.
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Monsoon rains: Temporary drainage, erosion control, and spoil management to protect adjacent areas.
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Heat & dust: Moisture management for uniform compaction and reduced airborne dust.
Quality Assurance
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Field density verification (per project spec)
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Lift documentation with stationing and depths
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Material delivery tickets and CLSM mix records
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Photo logs before cover, before base, and after surface reinstatement
Industries We Serve
Utilities & municipalities • Power & telecom • Industrial campuses • Developers & GCs • Transportation & public works
Other excavation services: utility trenches, berm work, spillway repairs, rain spillways, dust control, vacuum excavation, erosion control, duct bank, conduit excavation, hydro excavation, trench backfilling.
