Environmental Rules in Dearborn County, IN (2026)
4 rules for unincorporated Dearborn County, Indiana.
Verified from official government sources
Stormwater Management
Chapter 94 of the Dearborn County Code requires erosion and sediment controls on every land-disturbing site in unincorporated Dearborn County, Indiana, including protected storm drain inlets and no erosive discharge. A non-compliance citation carries a stop work order and a civil penalty of $100 to $250.
Dearborn County, Indiana Erosion and Stormwater Runoff Rules
Some RestrictionsDearborn County Code § 94.06; § 94.99
The following requirements shall be met on all sites: (A) Appropriate erosion control measures shall be installed prior to any land-disturbing activity, and thereafter whenever necessary. (B) Sediment-laden water flowing from the site shall be detained by erosion control measures appropriate to minimize sedimentation. (C) Water shall not be discharged from the site in a manner that causes erosi...
Erosion Control
Land-disturbing work in unincorporated Dearborn County, Indiana needs erosion control measures installed before the ground is touched and kept in place until the whole site is stabilized. Sediment-laden water must be detained, storm drain inlets protected and tracked soil minimized. The Building Commissioner enforces, with civil penalties from $100 to $750.
Dearborn County, Indiana Erosion and Sediment Control Rules
Some RestrictionsDearborn County Code § 94.06
The following requirements shall be met on all sites: (A) Appropriate erosion control measures shall be installed prior to any land-disturbing activity, and thereafter whenever necessary. (B) Sediment-laden water flowing from the site shall be detained by erosion control measures appropriate to minimize sedimentation. (C) Water shall not be discharged from the site in a manner that causes erosi...
Flood Zones
In unincorporated Dearborn County, Indiana, no development can begin in a special flood hazard area without a floodplain development permit from the Floodplain Administrator, who is the Planning Director. New residential construction needs its lowest floor, basement included, at or above the flood protection grade, which is two feet above the base flood elevation. Fill below the base flood elevation must be offset by excavation.
Dearborn County, Indiana Floodplain Development Rules
Some RestrictionsDearborn County Code §§ 152.18, 152.19(A), 152.50(K), 152.51(B)(1)
In conformance with the provisions of this chapter, a floodplain development permit shall be required prior to the commencement of any development activities in areas of special flood hazard. ... (A) No structure shall hereafter be located, extended, converted or structurally altered within the SFHA without full compliance with the terms of this chapter and other applicable regulations. ... (K)...
Flood Elevation Requirements
In unincorporated Dearborn County, Indiana, new construction or a substantial improvement inside a special flood hazard area must put the lowest floor, basement included, at or above the Flood Protection Grade. The county code sets that grade at two feet above the base flood elevation. The Planning Director administers the rule as Floodplain Administrator.
Dearborn County, Indiana Flood Protection Grade Rules
Some RestrictionsDearborn County Code § 152.51(A)-(C)
The following provisions are required in all SFHAs. ... (A) Building protection requirement. In addition to the requirements of § 152.50, all structures to be located in the SFHA shall be protected from flood damage below the FPG. This building protection requirement applies to the following situations: (1) Construction or placement of any new structure having a floor area greater than 400 squa...
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