Arid Southwest Best Management Practices (BMPs) For the Control of Nonpoint Source Pollution

Page 87

Road Stabilization POLLUTANTS ADDRESSED: Nutrients and Organics, Salinity, Sediments

Level 400: MODERATE ENGINEERING

LOAD REDUCTION POTENTIAL: LOW

MEDIUM

Riparian Planting Zone: Upland Zone and Flood flows.

HIGH

ESTIMATED TIME FOR LOAD REDUCTION: IMMEDIATE

MONTHS2 YEARS

> 2 YEARS

EXPECTED MAINTENANCE: LOW

MEDIUM

HIGH

ESTIMATED COST: LOW

MEDIUM

HIGH Photo courtesy of ADEQ Streambank Stabilization Plan

PLANNING AND IMPLEMENTATION: Planning considerations include the height and slope of the bank, the climate, and the value of the road or infrastructure. In general, hardening the bank with rock riprap is the most costly approach. Often the installation of native plant materials can reduce erosion runoff and stabilize the soils. Erosion control cloth can be used to temporarily stabilize the bank until vegetation is established.

Photo courtesy of ADEQ Streambank Stabilization Plan

Arid Southwest BMP

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