Erosion

Physical Erosion

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Divert Runoff

Check Dams

Check Dams

Sediment Traps

Santa Ysabel River

Drainage Ditch with Grade Control Structures

Direct concentrated flows through ditches with grade control structures (such as check dams) to reduce erosion in operations on access roads. Grade control structures slow the velocity of flow, reduce channel erosion, and promote the capture of pollutants carried in bed- and suspended-loads. KEY FEATURES: • Divert Runoff • Capture

Sediment Trap/Basin

A sediment trap or basin is a depressed area where sediment-laden runoff is temporarily detained, allowing sediment to settle out before runoff is discharged. KEY FEATURES: • Capture

Check Dams

Check dam reduces runoff energy and capture sediment loads

Slope Stabilization/Revegetation

Bare slopes are significant sources of pollutants in runoff. Stabilize and/or revegetate steep slopes to reduce erosion of the hillside. Temporary stabilization measures, such as mulching, wood chips, erosion control blankets, or fiber rolls can be used to minimize erosion during the plant establishment period. KEY FEATURES: • Stabilize • Divert Runoff • Capture

Sediment Trap

Sediment laden overland flow captured in shallow depressions with stabilized outlets to reduce downstream sediment loading.

Slope Drain

A slope drain is used to intercept and direct surface runoff on steep slopes in order to minimize gully erosion. These may consist of enclosed pipes or rip-rap lined channels. KEY FEATURES: • Stabilize • Divert Runoff