Erosion Control: Ewa Gentry vs Urban Honolulu
How do erosion control rules compare between Ewa Gentry, HI and Urban Honolulu, HI?
Ewa Gentry and Urban Honolulu have similar restriction levels.
Ewa Gentry, HI
Honolulu County
ROH Sec. 18A-1.6 requires approved erosion and sediment control plans for Ewa Gentry land-disturbing activities that need building, grading, stockpiling, or trenching permits.
View full Ewa Gentry 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 | Ewa Gentry | 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.
Ewa Gentry FAQ
Do I need an erosion plan to build a backyard addition?
If your project requires a building, grading, or trenching permit and disturbs land, Sec. 18A-1.6 requires an approved erosion and sediment control plan.
Who enforces the erosion control plan?
The Department of Planning and Permitting reviews plans and inspects sites, and can issue stop work orders or fines for non-compliance.
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.
Compare other topics
See how Ewa Gentry and Urban Honolulu compare on other ordinance categories.
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