Storm Drain Inlet Protection

STORM DRAIN INLET PROTECTION

Code References

• "All storm drain inlets shall be protected with a straw bale, frame with filter fabric or equivalent barrier meeting accepted design criteria, standards and specifications." (Reference: Section 290-7.2.d of the City Code of Ordinances).

• "Downslope, on-site public sewer inlets shall be protected with erosion control procedures." (Reference: Section Comm 21.125(1)(e) of the Wisconsin Administrative Code).

• "Protect separate storm drain inlet structures from receiving sediment." (Reference: Section NR 151.11(6)(c)(3) of the Wisconsin Administrative Code).

 Quick Tips

• Inlet protection shall be inspected weekly at minimum and within 24 hours after a precipitation event of 0.5 inches or greater.

• Sediment deposits shall be removed from inlet protection devices when the sediment has accumulated to between 1/3 and 1/2 the design depth of the device or when the device is no longer functioning as designed.

• Care shall be taken to ensure that sediment does not fall into inlets during the cleaning of protective devices.

• Silt fence fabric shall not be used for inlet protection.

Applicable Standards

• "Storm Drain Inlet Protection for Construction Sites" (WDNR Technical Standard 1060).

• Detail Drawings for Inlet Protection Type A, B, C, and D.

Related Weblinks

• Wisconsin Erosion Control Product Acceptability List (PAL).

• "Storm Drain Inlet Protection" (USEPA - National Menu of Stormwater Best Management Practices).

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