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Erosion Control Toolbox
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What is This Treatment?
Straw is typically combined with Hydroseeding to protect slopes from erosion. Straw is fastened in place either by punching it into the soil with a sheepsfoot-roller, or by gluing it to the soil surface by covering it with Hydromulch.
When to Use This Treatment:
- Use for excavation (cut) and embankment (fill) slopes and other disturbed soil areas.
- Typically used to treat disturbed areas larger than 0.5 acres. Consider using Dry Seeding to hand-seed areas less than 0.5 acres.
Immediate protection from surface erosion due to raindrop impact.
- Helps conserve soil moisture.
- Conforms closely to the soil surface which may result in less erosion due to surface rilling.
Vegetation provided by seed provides long-term control of erosion.
Regional air quality requirements may constrain the blowing of straw. Consider specifying Bonded Fiber Matrix instead.
- Applied straw may contain up to 15 pounds of weed seed per ton.
Consider Using With:
To effectively treat sites with poor soils (compacted, nutrient depleted, or poorly draining), consider combining this treatment with:
- 2010 Caltrans Standard Specifications - Section 21 Erosion Control
- 2010 Standard Special Provisions Index
- SSP 21-1.01B Use for weed-free straw
- SSP 21-1.02I Use to specify the use of weed-free straw
- SSP 21-1.02P Use to specify weed-free straw
Plans and Details:
- Click here to view current awarded bid prices for Straw.
- Use BEES code 210420 Straw.
- H. Dana Bowers, et al. 1947. Erosion Control on California State Highways
- California Department of Transportation, "TransPlant Seed and Plant Selection Tool", August 2009.
- California Department of Transportation, "Roadside Erosion Control Management Study (RECM)", May 2008.
- California Department of Transportation, "Effective Planting Techniques to Minimize Erosion", January 2004.
- David Steinfield, Scott Riley, Kim Wilkinson, Thomas D. Landis, Lee Riley, et al. 2007. "Roadside Revegetation, An Integrated Approach to Establishing Native Plants" Accessed 2009-07-16
- Michael Hogan, 2009. "Sediment Source Control Handbook, An Adaptive Approach to Restoration of Disturbed Areas" Accessed 2009-07-16.
- Dirt Time "Straw Types" Video from watchyourdirt.com