Oak Lawn, IL Environmental Rules: Erosion Control (2026)
Key Facts
- Trigger
- Construction bordering a street or sidewalk
- Required control
- Silt fence along the property line
- Applies when
- Parkway strip isn't already landscaped
- Enforced by
- Office of Quality Control, via building permit
- Penalty
- $100 to $750 fine per day
Summary
Oak Lawn's Building Code requires a maintained silt fence anywhere a construction site borders a street or sidewalk without landscaping, so grading and excavation don't wash dirt and sediment onto public rights-of-way.
During the construction of any building or structure on any property within the village, if the portion of the property immediately abutting any street or sidewalk, including the parkway area between the street and sidewalk, is not landscaped with either a lawn or other landscaping materials, so as to prevent erosion and the deposit of dirt and/or sediment upon such street or sidewalk, the owner of the property in question, as well as any contractors working thereon, shall be responsible for the proper erection and maintenance of a silt fence at all locations where the property, including the parkway area between the street and the sidewalk, abuts a street or sidewalk. Said silt fences shall be maintained in proper working order until a lawn, or other landscaping materials is/are installed to prevent the deposit of dirt and/or sediment upon the street or sidewalk. (Ord. 96-19-88) 6-1A-12: CONTRACTOR LICENSING AND REGISTRATION, GENERALLY:
A. It shall be unlawful for a person to act or perform any work or services as a contractor or subcontractor within the Village without first having been licensed by or registered with the Village's Department of Community Development, as herein provided. All contractor's licenses and registrations under this Article A will be valid for one (1) year from the date of issuance.
B. All contractors and subcontractors, as defined in Section 6-1A-14, performing work or services within the village shall comply with the
Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: 2026 S-15: Code current through: Ord. 26-09-22, passed April 28, 2026).
Full Breakdown
Under Village Code section 6-1A-11, anyone building, altering, adding to, repairing, removing, demolishing or excavating on a property in Oak Lawn must protect abutting streets and sidewalks, including the parkway strip between them, from erosion during construction. If that border area isn't already covered by lawn or other landscaping, the property owner and any contractors working on site must erect and maintain a silt fence along the full length where the lot meets the street or sidewalk. The fence must stay in proper working order until permanent lawn or landscaping is installed; enforcement runs through the same building-permit process, overseen by the Director of the Office of Quality Control, that authorized the construction.
Violations & Fines
Violating the Building Code's construction provisions, including the silt-fence requirement, is a misdemeanor under section 6-1-8: a fine of $100 to $750 per offense under section 1-4-1, with each additional day a separate violation.
Frequently Asked Questions
Does Oak Lawn require erosion control at construction sites?
Who has to install the silt fence?
Sources & Official References
Other rules in Oak Lawn
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Erosion Control in Nearby Cities
How other cities in Cook County handle erosion control.