- 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
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?
Fiber rolls consist of straw, flax or similar materials inserted into a tubular net.
Where to Use This Treatment?
Place on erodible slope faces at regular intervals, and at the slope top, toe, and at grade breaks, aligning fiber rolls with the slope contours.
Compost socks are typically spaced as follows:
- 10 feet apart for slopes steeper than 2:1 (horizontal:vertical)
- 15 feet apart for slopes from 2:1 to 4:1 (horizontal:vertical)
- 20 feet apart for slopes from 4:1 to 10:1 (horizontal:vertical)
- 50 feet apart for slopes flatter than 10:1 (horizontal:vertical)
For additional guidance regarding placing fiber rolls, contact your District Stormwater Coordinator and the Storm Water Quality Handbook - Project Planning and Design Guide (May 2007).
Reduces slope length.
Reduces stormwater runoff volume and velocity.
Intercepts runoff and releases it as sheet flow.
Reduces the amount of sediment in runoff.
- Maintenance required to remove sediment and repair or replace damaged fiber rolls.
- Difficult to install on steep or rocky slopes.
- Fiber rolls will not solve slope stability problems.
- 2010 Caltrans Standard Specifications - Section 21 Erosion Control
- SSP 21-1.01B Use to specify the use of weed-free straw
- SSP 21-1.02I Use to specify the use of weed-free straw
- SSP 21-1.02P Use to specify the use of plastic netting and/or weed-free straw
- 2010 Standard Special Provisions Index
Plans and Details:
- 2010 Standard Plans - See Standard Plans for Landscape and Erosion Control
- 2010 Erosion Control Legend/Quantity Sheet
- Click here to see sample Erosion Control project plans
- Click here to view current awarded bid prices for Fiber Rolls.
- Use BEES code 210350, Fiber Rolls.