Erosion Control: Kapolei vs Urban Honolulu
How do erosion control rules compare between Kapolei, HI and Urban Honolulu, HI?
Kapolei and Urban Honolulu have similar restriction levels.
Kapolei, HI
Honolulu County
ROH Sec. 18A-1.6 requires approved erosion and sediment control plans for Kapolei land-disturbing activities that need building, grading, stockpiling, or trenching permits.
View full Kapolei rules →Urban Honolulu, HI
Honolulu County
Urban Honolulu tower and infill projects in Kakaako, Ala Moana, and Waikiki must submit erosion and sediment control plans under ROH Sec. 18A-1.6, protecting tight streets and storm drains that discharge directly to sensitive coastal waters.
View full Urban Honolulu rules →Key Facts Comparison
| Fact | Kapolei | Urban Honolulu |
|---|---|---|
| - | - | |
| Authority | - | ROH Sec. 18A-1.6 |
| Urban focus | - | Kakaako, Ala Moana, Waikiki |
| Typical BMPs | - | Inlet protection, track-out |
| Reviewer | - | DPP |
| Compounding rule | - | MS4 Chapter 43 |
Highlighted rows indicate differences between cities.
Kapolei FAQ
Do I need a plan for a small Kapolei landscaping project?
Only if the project requires a building, grading, stockpiling, or trenching permit and disturbs land; smaller routine landscaping typically does not.
Who approves the erosion and sediment control plan?
The Department of Planning and Permitting reviews plans as part of the associated building or grading permit process under Chapter 18A.
Urban Honolulu FAQ
Do small Urban Honolulu remodels need erosion control plans?
If the remodel requires a building, grading, stockpiling, or trenching permit, Sec. 18A-1.6 requires an approved plan before disturbance, regardless of project size.
What BMPs does DPP expect for Urban Honolulu sites?
Typically inlet protection on all adjacent catch basins, perimeter silt fabric, stabilized exits to prevent track-out, and covered stockpiles to reduce tradewind-driven erosion.
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