Erosion Control: East Honolulu vs Honolulu
How do erosion control rules compare between East Honolulu, HI and Honolulu, HI?
Honolulu has fewer restrictions than East Honolulu.
East Honolulu, HI
Honolulu County
Land disturbing projects in East Honolulu require approved erosion and sediment control plans under ROH Sec. 18A-1.6 before building, grading, stockpiling, or trenching permits issue.
View full East Honolulu rules →Honolulu, HI
Honolulu County
The Honolulu Grading Ordinance (ROH chapter 14 article 13) requires permits and erosion controls for cuts, fills, and stockpiles, especially on Oahu's steep upland and coastal slopes.
View full Honolulu rules →Key Facts Comparison
| Fact | East Honolulu | Honolulu |
|---|---|---|
| - | - | |
| Local code | - | ROH Chapter 14 Article 13 |
| Permit trigger | - | Over 50 cubic yards |
| Slope trigger | - | Over 10 percent |
| Permit agency | - | Honolulu DPP |
| Common BMP | - | Silt fence and hydromulch |
Highlighted rows indicate differences between cities.
East Honolulu FAQ
Do small residential projects need an erosion plan?
Projects triggering a building, grading, stockpiling, or trenching permit require an approved erosion and sediment control plan under Sec. 18A-1.6, regardless of project size.
Who inspects my site controls?
City inspectors under Chapter 18A perform periodic and complaint-driven inspections of installed controls during land disturbing activity, and deficiencies can halt work.
Honolulu FAQ
Do I need a permit to remove a small backyard slope?
Probably yes if it involves more than 50 cubic yards or a cut over five feet. Smaller landscaping projects often qualify for an exemption but still need erosion controls.
What are the rules during heavy rain?
Active grading must pause and exposed soil must be covered or stabilized. Inspectors can issue stop-work orders if best management practices fail during storms.
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