- Barrier Aesthetics
- Blue Star Memorial Highways
- Classified Landscaped Freeways
- Community ID
- Context Sensitive Solutions
- Erosion Control Toolbox
- Gateway Monuments
- Main Streets
- Mission Bells
- New Product Review
- Policy and Procedures
- Roadside Toolbox
- Safety Roadside Rest Area System
- Scenic Highways
- Transportation Art
- Visual Impact Assessment Outlines
- VIA Training
- Water Conservation
Erosion Control Toolbox
To Combine Specifications
Planning & Design
Improve Soil Health
- Soil Rehabilitation
- Local Topsoil
- Imported Topsoil
- Roughen Soil Surface
- Stepped Slopes
- Contour Grading and Slope Rounding
- Decompact Soil
- 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?
Hydroseeding is a method of applying seed, fiber, tackifier and other materials to a site via a hydraulic spray rig.
The Hydroseed specification includes the following steps:
- Seed and fiber are applied to slopes with a hydroseed rig.
- Optionally straw is applied with a straw blower.
- Fiber and tack are applied with a hydroseed rig.
When to Use This Treatment:
- Use for cut and 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.
Low initial cost compared to other treatments.
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 substituting Bonded Fiber Matrix.
Higher application rates required for steeper slopes may inhibit germination of seed and establishment of long-term vegetation.
Inefficient technique to treat disturbed areas less than 0.5 acres. Consider using Erosion Control (Seeding) instead.
Consider Using With:
To effectively treat sites where Erosion Control (Hydroseeding) may not stay in place, consider combining this treatment with:
To effectively treat sites with poor soils (compacted, nutrient depleted, or poorly draining), consider combining this treatment with:
Plans and Details:
Example of how to specify the use of Hydroseed on the project plans:
- Click here to view current awarded bid prices for Hydroseed.
- Click here for a 1997 cost survey of Erosion Control pricing.
- Use BEES code 203031 Erosion Control (Hydroseed) for payment by sq. ft.
- Use BEES code 203032 Erosion Control (Hydroseed) for payment by acre.
- 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