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🌍 Environmental Rules/Erosion Control

Erosion Control: Neenah vs Oshkosh

How do erosion control rules compare between Neenah, WI and Oshkosh, WI?

Neenah and Oshkosh have similar restriction levels.

Neenah, WI

Winnebago County

Heavy Restrictions

Wisconsin requires erosion control practices on construction sites under NR 151 and SPS 321. State standards apply uniformly, and one- and two-family dwelling sites follow Department of Safety and Professional Services rules.

View full Neenah rules β†’

Oshkosh, WI

Winnebago County

Heavy Restrictions

Wisconsin requires erosion control practices on construction sites under NR 151 and SPS 321. State standards apply uniformly, and one- and two-family dwelling sites follow Department of Safety and Professional Services rules.

View full Oshkosh rules β†’

Key Facts Comparison

FactNeenahOshkosh
Residential codeSPS 321.125SPS 321.125
Site threshold1+ acre or per local rule1+ acre or per local rule
Inspection trigger0.5 inch rainfall0.5 inch rainfall
Plan requiredBefore gradingBefore grading

Highlighted rows indicate differences between cities.

Neenah FAQ

Do I need erosion control for a single home build?

Yes. SPS 321.125 requires silt fences, tracking pads, and inlet protection on every new one- and two-family dwelling site, regardless of acreage.

Who enforces erosion control standards?

DNR enforces NR 151 for sites of one acre or more and MS4 communities. DSPS and local building inspectors enforce SPS 321 on residential sites.

How often must I inspect controls?

BMPs must be inspected at least weekly and within 24 hours after a rainfall event of 0.5 inch or greater, with damaged controls repaired promptly.

Oshkosh FAQ

Do I need erosion control for a single home build?

Yes. SPS 321.125 requires silt fences, tracking pads, and inlet protection on every new one- and two-family dwelling site, regardless of acreage.

Who enforces erosion control standards?

DNR enforces NR 151 for sites of one acre or more and MS4 communities. DSPS and local building inspectors enforce SPS 321 on residential sites.

How often must I inspect controls?

BMPs must be inspected at least weekly and within 24 hours after a rainfall event of 0.5 inch or greater, with damaged controls repaired promptly.

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