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Call the experts in excavation, pipe, road and site development—Tapani Underground. Owned and operated by the Tapani family proudly serving the greater SW Washington and Portland region!
Excavation
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- Private and commercial site development work Land clearing, bulk excavation.
- Grading, using the Trimble SiteVision GPS system, a revolutionary earthmoving grade control system that puts design surfaces, grades and alignments inside the cab.
- Subdivision site development and road construction.
- Storm drainage and pond construction (detention and retention).
- Subsurface drainage.
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| Utility Work |
- Underground water main construction (including water services).
- Underground sewer construction (including Pump Stations).
- Underground storm sewer.
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| Road Construction
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- Multi-million dollar public interstates.
- Heavy highway work.
- Public and private road development.
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| Environmental |
- Riverbank construction.
- Stream diversions.
- Emergency flood control.
- Wetland reconstruction.
- Bridge construction.
- Landfill closures.
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