Plain-English Definitions for Drainage and Stormwater Terms
Drainage decisions get easier when terminology is clear. This glossary explains common drainage terms used in inspections, estimates, and project design across Boise and the Treasure Valley.
Core Drainage Terms
- Positive grade: surface slope that directs water away from structures.
- Catch basin: an intake structure that captures surface water and sediment.
- Channel drain: linear surface drain used along hardscape transitions.
- Conveyance: the pipe or path used to transport captured water.
- Discharge point: final location where water exits a managed system.
- Hydrostatic pressure: lateral pressure from water in saturated soil.
Soil and Flow Terms
- Infiltration rate: speed at which water enters soil.
- Capillary action: upward moisture movement through soil pore spaces.
- Expansive clay: clay that changes volume with moisture variation.
- Erosion: soil displacement caused by water velocity.
- Scour: local soil removal at high-energy discharge locations.
Related term pages: what is expansive clay and what is capillary action in soil.
Why Terminology Matters in Real Projects
Understanding terms improves scope accuracy and helps you compare proposals correctly. For example, two quotes may both mention “drainage,” but only one may include full discharge planning and maintenance access.
Use this glossary with drainage solutions, yard drainage planning, and commercial stormwater pages.
Technical References
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Common Failure Signs in Boise
Water Intrusion
Moisture seeping through walls, floors, or foundation during rain or irrigation season.
Structural Warning Signs
Cracks in walls, sticking doors, or uneven floors indicating foundation movement.
Ongoing Maintenance Issues
Recurring problems that never seem to go away despite multiple repair attempts.
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Boise Drainage Glossary FAQ
Is this glossary only for engineers?
Can definitions vary between contractors?
How do I use this when comparing bids?
What Boise Homeowners Say
"This glossary made our estimate review much easier."
"Great educational resource for understanding scope language."
"Clear definitions helped us ask better questions before approving work."
Why Choose Idaho Drainage Solutions?
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