Erosion Control: Bellevue vs Redmond
How do erosion control rules compare between Bellevue, WA and Redmond, WA?
Bellevue and Redmond have similar restriction levels.
Bellevue, WA
King County
Bellevue requires erosion control measures for land-disturbing activity. Clearing and Grading Code (LUC 20.25H) mandates BMPs on steep slopes and near critical areas.
View full Bellevue rules →Redmond, WA
King County
Redmond requires construction-phase erosion and sediment control BMPs on any ground disturbance over 2,000 sf under RMC Title 15 and the DOE Stormwater Manual, with daily inspection during wet season.
View full Redmond rules →Key Facts Comparison
| Fact | Bellevue | Redmond |
|---|---|---|
| - | - | |
| Trigger | - | 2,000 sf disturbance |
| SWPPP | - | Required with permit |
| Wet season | - | Oct 1 to Apr 30 |
| State permit | - | 1 acre triggers CSWGP |
Highlighted rows indicate differences between cities.
Bellevue FAQ
Redmond FAQ
Do I need silt fence for a small Redmond addition?
For most ground disturbance over 2,000 sf, yes, along with other erosion BMPs during the entire project.
Can I keep bare soil exposed over winter?
No, during the Oct 1 to Apr 30 wet season disturbed soils must be stabilized with mulch, cover, or grass.
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