StructuresProtect Structural Integrity

• Wood/less durable check dams vs. stone/more durable check dams

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StructuresProtect Structural Integrity & Prevent Flooding• Culverts

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StructuresProtect Structural Integrity & Prevent Flooding• Culvert

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StructuresDos and Don’ts

Do’s• Do remove sediment, debris & trash from inlet

& outlet structures such as curb cuts, rip rap, sumps & grates.

• Do control and handle the removed sediment so it won’t get back into the storm system.

• Do prevent excessive ponding by inspecting underdrains.

• Do prevent flooding by clearing outlets of obstructions.

• Do protect the integrity of structures such as curbs, & walls.

• Do inspect less durable materials more often.

StructuresDos and Don’ts

• Do inspect culverts to look for UV degradation, cross-section shape changes that may cause flooding, and corrosion.

Erosion Prevention

• Erosion prevention is any practice that protects the soil surface and prevents the soil particles from being detached by rainfall or wind.

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Erosion PreventionCover Soils with Fabrics

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Soil Quality ProtectionLimit Compaction

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Sediment (aka Source) Control

• “Sediment Control is any practice that traps the soil particles after they have been detached and moved by wind or water”…

Sediment (aka Source) Control

• …to prevent this!

Photo excerpted from “ODEQ Erosion and Sediment Control Manual”, DEQ, Apr 2005

Sediment Control for Sheet FlowCompost Socks

OR DEQ

Sediment Control for Sheet FlowWattles (are your friends!)

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Sediment Control for Concentrated FlowsInlet Filters

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Sediment Control for Concentrated FlowsProtecting Catch Basin Inlets

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Erosion Prevention & Sediment ControlDos and Don’ts

Do’s• Do prevent erosion by keeping soil covered

and getting plants established.• Do prevent erosion by staying out landscape

areas when possible. This also prevents soil compaction, which slowly kills vegetation and creates erosion long-term.

• Do control sediment when erosion cannot be prevented by using wattles & filter sacks.

Spills

OR Department of Environmental Quality

Clean up the spill

Do• Determine what type of material has spilled• Block stormwater inlets• Use absorbent material to contain the spill• Remove contaminated soil from facility• Protective gear for workers

OR Department of Environmental Quality

Clean up the spill

Don’t:• Dispose of hazardous material in the

garbage. Must be taken to a hazardous waste facility.

morguefile

Notify the appropriate authorities

Do• Contact owner of the facility• Contact local jurisdiction emergency response• Contact OR Emergency Response 800-452-0311

Photo: morgueFile

Spills

Do• Document the spill in the O&M report

Take Home Messages

• These recommendations are general guidelines

• Check with the local jurisdiction for specific requirements

• Operations and Maintenance guidance document being developed for our region

• For more information, contact:candace@emswcd.org