Inlet Protection
Three practice standards provide best management practices to protect active storm drain inlets during construction phases
Practice Standards
Numbers
860, 861, 862
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Storm drain inlet protection controls prevent soil and debris from entering storm drain inlets. These controls are usually temporary and allow storm drain inlets onsite to remain operational prior to permanent site stabilization. Inlet protection is often the last opportunity to provide treatment to stormwater prior to discharge.
There are several types of inlet protections that construction site operators can use depending on site conditions, inlet configurations and material availability. Inlet protection can be either internal or external.
Internal controls consist of a filter insert that construction staff place within a storm drain, and these controls are generally only useful for larger sediment.
For at grade impervious protection, a piece of fabric alone under or on the grate is not a sufficient protection measure. Regular inspections and removal of sediment is key to maintaining a functioning inlet protection system. Sediment should be removed when the level of deposition reaches one-half the height of an exterior barrier or when sediment storage capacity has been reduced by half for interior protection measures.
External controls enable ponding around the storm drain inlet using some type of filter barrier made of stone, gravel or fabric. Construction staff can create the ponded area by either excavating around a drop inlet or by building the filter material up around a drop inlet’s perimeter. External controls slow flow velocities and allow for sediment settling and filtration before stormwater enters the inlet. (source: US EPA NPDES)
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The Gallery
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KDSWCD 23rd Annual Soil Erosion & Sediment Control Seminar ~ Green Infrastructure
New format featuring local case studies and lunch!
Join local infrastructure managers showcasing their projects, highlighting successes and discussing challenges.
$65 per person
Earns 5 PDH credits.
Sponsored by the Illinois Environmental Protection Agency.
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Wednesday, January 28
9am - 2pm
Elgin Community College
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Thursday, February 19
8am - 4pm
Rock Island, IL
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12th Annual Quad Cities Stormwater Conference
Walking the Talk: Engineering, Construction and Conservation
This conference is geared towards contractors dealing with stormwater and erosion control, engineering firms, floodplain managers, MS4 managers and engineering/contractor companies working throughout the Quad Cities. This event is an approved professional development opportunity with a certificate provided for PDU's/CEU's.
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Winnebago SWCD SESC Seminar
The Winnebago County Soil and Water Conservation District will once again be hosting a Soil Erosion and Sediment Control and MS4 workshop on Thursday, February 26th, from 7:30AM to 3:00PM. The event will be held at the NIU - Rockford campus, located at 8500 East State Street, Rockford, IL 61108.
Morning Session
• Permitting requirements with the Army Corp of Engineers
• Product spotlight – Gabion baskets and stabilization of steep slopes (addressing overland flow)
• Inspector panel – Inspections, Communications & Follow-up
• High flow inlet protection and dewatering devices
• Addressing water quality concerns through nature-based solutions
• What went wrong – common misuses of practices or products
| | Registration closes February 18 | | |
Afternoon Session
• New MS4 Permit Requirements
• Implementation of Municipal Pollution Prevention Best Management Practices
Four (4.0) Professional Development Hours will be awarded for the morning session, and two (2.0) for the afternoon session.
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CMAP Virtual Workshop Series
The Chicago Metropolitan Agency for Planning (CMAP) has launched the Shared Waters, Shared Future: Northeastern Illinois Regional Water Supply Sustainability virtual workshop series. This 5-part workshop series tackles today’s most pressing water challenges.
| | Don’t miss the first workshop, Water Utility & Local Government Collaboration, on Wednesday, February 18. | |
Stormwater Management Commission Request for Proposals Open
Lake County Stormwater Management Commission has issued a Request for Proposals (RFP) for wetland mitigation projects within the Des Plaines River Watershed in Lake County, IL, using funds collected in the SMC Wetland Restoration Fund (WRF).
The mitigation acreage goal is 6.57 acres, at a minimum, and approximately $716,395 of WRF funds are available.
Eligibility is open to any landowner (public or private) whose ownership property lies within the Des Plaines River watershed in Lake County, IL.
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Deadline
Wednesday, January 21 at 11a.m (CST)
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New for 2026!
IUM Calendar featuring BMPs, Pro Tips and Trivia!
Available from your local SWCD.
Funding for this project provided, in part, by the Illinois Environmental Protection Agency through Section 604 of the Clean Water Act.
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Thank you ILICA for promoting the IUM
in your 2026 member directory!
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JULIE Positive Response System is LIVE!
Effective January 1, 2026 ~ Member utility companies will use JULIEs Positive Response System to communicate the status of a locate request notification to the excavator through a series of codes. The Illinois state law requires that all member utility companies respond to every locate request notification they receive.
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LAST Call to Action: Combating
Non-Point Source and Stormwater Pollution
Sponsor Tomorrow's Environmental Stewards
For 2026, Envirothon has chosen the environmental issue: Non-Point Source Pollution: it begins at home! Students will learn about NPS pollution and identify its origins in both urban and rural settings. They will conduct their own NPS surveys in their community and watershed. Additionally, they will research NPS mitigation strategies, which encompass actions at both the individual level - such as conservation, recycling, and responsible consumption - and the community level, including watershed planning, best management practices, nature-based solutions, water quality testing, and litter prevention initiatives.
Sponsors are critical every year to keep this program available so that teams of high school students can compete regionally in the areas of aquatics, forestry, soils, wildlife and the current issue in natural resources. If your mission includes pollution prevention, our Sponsorship Form is available now for 2026!
The Northeastern Illinois Envirothon is organized by local soil and water conservation districts for high schools in Boone, Cook, DeKalb, DuPage, Kane, Lake, McHenry, Will and Winnebago counties. See link below to find your regional SWCD.
| | Outside of NE Illinois, contact your local SWCD to sponsor your local Envirothon! | |
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ILICA Land Improvement & Construction Trade Show ~ January 22-23 in Bloomington, IL
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KDSWCD 23rd Annual SESC Seminar - Green Infrastructure ~ January 28 in Elgin, IL
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Stormwater USA ~ February 2-3 in Orange County, CA
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Illinois Road & Transportation Builders Assoc Convention ~ February 6-12 in Mexico
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DECI Webinar ~ February 10 virtual
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Tree Ordinance Admin Workshop ~ February 13 @ Morton Arboretum
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Illinois Lake Management Assoc (ILMA) Conference ~ February 16-18 in Champaign, IL
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Water & Wastewater Equipment, Treatment & Transport Show ~ February 16-19 in Indianapolis, IN
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CMAP Water Supply Sustainability virtual workshop series session 1 ~ February 18
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12th Annual Quad City Stormwater Conference ~ February 19 in Rock Island County, IL
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Central States Water Environment Assoc Government Affairs Seminar ~ February 19 in Fond du Lac, WI
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HOA Workshop & Vendor Expo ~ February 25 in Grayslake, IL
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Winnebago SWCD SESC Workshop ~ February 26
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International Erosion Control Association Annual Conference ~ March 1-4 in Fort Worth, TX
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Illinois Assoc. of Floodplain & Stormwater Mgmt Annual Conference ~ March 11-12 in Champaign, IL
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IUM E-News Sponsored By
Seeking Sponsors for your IUM E-Newsletter!
| | | Supporting residents, landowners, and businesses in Kane and DuPage Counties in Illinois by leading efforts to ensure healthy soil, clean water, sustainable land development and regenerative agriculture. | | | | | | | | A statewide competition promoting critical thinking & environmental stewardship | | |
Illinois Urban Manual News
Funding for this project is provided, in part, by the Illinois Environmental Protection Agency through Section 604 of the Clean Water Act
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