Floyd County, IN Environmental Rules: Erosion Control (2026)
Key Facts
- Required document
- Perimeter Control Plan
- Minimum buffer strip width
- 25 feet
- Stabilized entrance pad
- 6 inches thick, 100 feet long
- Stone size required
- 2 to 3 inch crushed coarse stone
- Pre-acceptance inspection window
- Within 7 days of submission
Summary
Floyd County Code § 152.006 requires a Perimeter Control Plan on construction sites in unincorporated Floyd County to stop sediment from leaving the site before permanent controls go in, including vegetated buffer strips at least 25 feet wide and a stabilized stone pad at every construction entrance.
(A) The Perimeter Control Plan shall include measures to prevent sediment from leaving the site during initial disturbance activities and prior to temporary or permanent erosion prevention and/or sediment control practices. ... (D) (1) In selection of sediment control measures, the type of flow, site terrain, soil type, and other relevant factors shall be considered. Buffer strips may only be utilized for sheet flow and must be at least 25 feet in width. ... (E) (1) The Perimeter Control Plan shall address stabilizing construction entrances/exits to reduce the amount of sediment transported onto nearby roadways, and potentially into waterways. (2) (a) Where possible, traffic entering a public right-of-way, alley, sidewalk, or parking lot shall first pass over a stabilized stone pad. (b) This pad shall be at least six inches thick, 100 feet long, and contain two-inch to three-inch crushed coarse graded stone.
Full Breakdown
The Perimeter Control Plan addresses downstream outfall points while a separate Grading Plan covers site-wide erosion prevention and sediment control. It must prevent sediment from reaching adjacent properties using well-vegetated buffer strips, sediment barriers, filters, diversion berms, or sediment basins, chosen based on the type of flow, site terrain, and soil type; buffer strips can only be used for sheet flow and must be at least 25 feet wide, and if a single sediment control device proves ineffective, the site must add supplemental perimeter controls.
Every construction entrance and exit must be stabilized so vehicles pass over a stone pad at least six inches thick and 100 feet long, built from two-inch to three-inch crushed coarse graded stone, with filter fabric underneath in seasonally wet conditions or soft soils, all aimed at keeping sediment off nearby roadways and out of waterways. Outlet protection, such as rock, grouted riprap, or concrete rubble at a pipe outlet, is encouraged to prevent scour from high flow velocities. Sites under one acre can still be required to file a Perimeter Control Plan if the county deems it necessary.
007, the county inspects the site before accepting the plan, within seven days of submission and installation of the perimeter devices, and again before any grading or disturbance may proceed.
Violations & Fines
Violations of the chapter's permit and plan requirements, including failing to install or maintain the required Perimeter Control Plan measures, carry a civil penalty of up to $2,500 per offense under § 152.999, which rises 25% for each later separate offense by the same person under § 152.010, plus possible cost and attorney-fee recovery by the county.
Frequently Asked Questions
Does a small construction site need a Perimeter Control Plan?
What stops sediment from washing onto a neighboring property?
What do construction entrances have to look like under this rule?
Who inspects erosion controls before work starts?
Sources & Official References
Other rules in Floyd County
Compare Floyd County to another location·View the Indiana environmental rules overview
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