AOAO / Multi-Family

Lae Nani Underground Pipe Discovery

Project Details

Location Kapaʻa, Kauaʻi
Project Size 4 sampling locations · 4″ cast iron line
Year 2026
Status Completed

About This Project

Lae Nani AOAO in Kapaʻa, Kauaʻi needed fast answers about the condition of its buried 4-inch cast iron waste piping. Working alongside the general contractor, Warrior Construction took on an emergency underground discovery program with four sampling locations spread across the property’s landscaped areas.

Our crew carefully opened each marked location with a mini excavator and hand tools, protecting the lawn and landscaping, to expose the pipe. Samples were cut, labeled and tagged for laboratory evaluation.

At each location the sampled section was replaced with new pipe, then backfilled and restored, so residents could keep using their grounds. The association now has the physical evidence its engineers need to plan permanent repairs.

Scope of Work

  • Four test excavations in landscaped areas
  • Exposure and sampling of 4-inch cast iron waste pipe
  • Sample labeling and hand-off for lab analysis
  • Replacement of sampled sections with new pipe
  • Backfill and landscape restoration

Project Photos

Landscaped common area at Lae Nani before pipe excavationTest pit opened in the lawn to expose the underground pipeMini excavator opening a test excavation on the lawnExposed 4-inch cast iron waste pipe in the test pitCast iron waste pipe exposed at a sampling locationUnderground pipe with cleanout cap exposed in the pitCorroded cast iron pipe fitting uncovered undergroundLabeled cast iron pipe sample cut for lab evaluationCast iron pipe sample tagged for laboratory analysisNew pipe fitting installed after samplingNew pipe section installed and ready for backfillLandscape restored after underground pipe work

Project Timeline

1

Site Access Arranged

Jun 1, 2026

Access to the property arranged with the association.

2

Excavation & Sampling

Jun 2 – Jun 3, 2026

Four test pits opened in the landscaped areas, the cast iron pipe exposed, and samples cut, labeled and tagged.

3

Pipe Replacement & Restoration

Jun 3 – Jun 4, 2026

Sampled sections replaced with new pipe, pits backfilled and the landscaping restored.

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