Effects of NRCS Conservation Practices - National

Open Channel Code: 582

Units: ft.

C F R P Pr FS D W O AL

Soil Erosion Effect Rationale

Soil Erosion - Sheet and Rill Erosion 0

Soil Erosion - Wind Erosion 0

Soil Erosion - Ephemeral Gully Erosion 0

Soil Erosion - Classic Gully Erosion 0

Soil Erosion - Streambank, Shoreline, Water Conveyance C 2

Soil Quality Degradation

 Organic Matter Depletion 0

 Compaction 0

 Subsidence 0

 Concentration of Salts or Other Chemicals 0

Excess Water

 Excess Water - Seeps 1

 Excess Water - Runoff, Flooding, or Ponding 5

 Excess Water - Seasonal High Water Table 2

 Excess Water - Drifted Snow 0

Insufficient Water

 Insufficient Water - Inefficient Use of Irrigation Water 0

 Insufficient Water - Inefficient Moisture Management 0

Water Quality Degradation

 Pesticides in Surface Water 0

 Pesticides in Groundwater 0

 Nutrients in Surface water -1

 Nutrients in Groundwater 0

 Salts in Surface Water 0

 Salts in Groundwater 0

 Excess Pathogens and Chemicals from Manure, Bio-solid 0 

 Excess Pathogens and Chemicals from Manure, Bio-solid 0 

Constructing or improving a channel either natural or artificial, in which water flows with a free surface

Not Applicable

Not Applicable

Not Applicable

Not Applicable

Not Applicable

Stabilized channel bottom and sides.

AL-Aso Land 

W-Water 

O-Other 

D-Developed 

FS-Farmstead 

Pr-Protected 

P-Pasture 

F-Forest 

R-Range 

C-Crop

Typical Landuse:

Provides suitable outlets and facilitates drainage.

Not Applicable

Not Applicable

Not Applicable

Not Applicable

Not Applicable

Not Applicable

Water conveyance reduces seepage.

Channel capacity accommodates runoff and reduces flooding and ponding.

Not Applicable

Not Applicable

Rapid removal of water off site has the potential to decrease infiltration, thus increasing contamination of surface water.

Rapid removal of water off site has the potential to decrease infiltration, thus decreasing contamination of ground water.

Not Applicable

Rapid removal of water off site has the potential to decrease infiltration, thus decreasing contamination of ground water.

Not Applicable

Not Applicable
 Excessive Sediment in Surface Water 0

 Elevated Water Temperature 0

 Petroleum, Heavy Metals and Other Pollutants Transporte -1

 Petroleum, Heavy Metals and Other Pollutants Transporte 0

Air Quality Impacts

 Emissions of Particulate Matter (PM) and PM Precursors 0

 Emissions of Ozone Precursors 0

 Emissions of Greenhouse Gases (GHGs) 0

 Objectionable Odors 0

Degraded Plant Condition

 Undesirable Plant Productivity and Health 0

 Inadequate Structure and Composition 0

 Excessive Plant Pest Pressure 0

 Wildfire Hazard, Excessive Biomass Accumulation 0

Fish and Wildlife - Inadequate Habitat

 Inadequate Habitat - Food 0

 Inadequate Habitat - Cover/Shelter 0

 Inadequate Habitat - Water 0

 Inadequate Habitat - Habitat Continuity (Space) 0

Livestock Production Limitation

 Inadequate Feed and Forage 0

 Inadequate Shelter 0

 Inadequate Water 0

Inefficient Energy Use

 Equipment and Facilities 0

 Farming/Ranching Practices and Field Operations 0

CPPE Practice Effects: 0 No Effect

5 Substantial Improvement -1 Slight Worsening

4 Moderate to Substantial Improvement -2 Slight to Moderate Worsening

3 Moderate Improvement -3 Moderate Worsening

2 Slight to Moderate Improvement -4 Moderate to Substantial Worsening

1 Slight Improvement -5 Substantial Worsening

Not Applicable

Change in alignment, capacity, and velocity will cause a temporary increase in sediments and turbidity.

The action conveys water quickly and will not result in increased surface water temperatures.

Rapid movement of water off site will tend to move contaminants in surface water.

Constructing or improving channels may increase or decrease food for fish and wildlife. 

Not Applicable

Not Applicable

Not Applicable

Not Applicable

Not Applicable

Not Applicable

Not Applicable

Not Applicable

Not Applicable

Not Applicable

Not Applicable

Constructing or improving channels may increase or decrease cover/shelter for fish and wildlife. 

Flow through the channel is accelerated reducing slow-water habitat.

Constructing or improving channel may increase or decrease food and habitat for fish and wildlife depending on species and the 

vegetation of the stabilized channel..

Not Applicable

Not Applicable