- Awards and Recognition
- Annual Reports
- Barrier Aesthetics
- Blue Star Memorial Highways
- Classified Landscaped Freeways
- Community Identification
- Context Sensitive Solutions
- Erosion Control Toolbox
- Gateway Monuments
- Highway Planting
- Mission Bells
- Nonstandard Specification Info
- Policy, Manuals and Procedures
- Roadside Toolbox
- Safety Roadside Rest Area System
- Scenic Highways
- Standard Specifications and Plans
- Transportation Art
- Visual Impact Assessment Outlines
- Visual Impact Assessment Training
- Water Conservation
Erosion Control Toolbox
To Combine Specifications
Planning & Design
Improve Soil Health
- Soils Testing
- Local Topsoil
- Imported Topsoil
- Roughen Soil Surface
- Stepped Slopes
- Contour Grading and Slope Rounding
- Decompact Soil
- Soil Nutrients
- Incorporate Materials
Improve Soil Health & Provide Cover
Short Term Cover
Long Term Cover
Steep Slope Techniques
- Stepped Slope
- Cellular Confinement
- RECP Flap
- RECP Flap with Brush Layering
- RECP Wrap
- Soil Filled RSP
- Wire Blanket
- Wire Mesh Confinement
- Plant Selection
- TransPlant Application
- Noxious and Invasive Species
- Drill Seed
- Dry Seed
- Native Grass Sod
- Brush Layering
Low Impact Development
- Sidewalk Stormwater Planter
- Sidewalk Stormwater Tree Trench
- Parking Stormwater Planters
- Permeable Paving
- Additional Resources
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.
If local air quality constraints due to straw blowing may be an issue, consider specifying Bonded Fiber Matrix.
- 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 Standard Specifications (See Section 21-1.02I and 21-1.03H Straw)
- 2010 Revised Standard Specifications (RSS)
Plans and Details:
Example of how to specify the use of Straw on the project plans:
- 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