Coir Logs Erosion Control
Erosion Control Fiber Logs
Question: I am looking at coir erosion control logs and I was wondering, do coir logs have a lifespan? Also, are there instructions for installing them on site? Do you just place them there?
Answer: Similar to other coir erosion control materials, the Coir Logs offered by GEI Works are a 100% natural product designed to biodegrade over a designated period of time. Coir logs erosion control life spans will naturally vary depending on site conditions. The general lifespan of a coir log can be anywhere from two to five years.
Coir Log Construction
GEI Works' erosion control fiber rolls are constructed with both mattress coir and bristle coir twine. Mattress coir holds a lower level of strength and is often densely packed into the inside of coir logs for increased stabilization. Bristle coir twine, is designed to tightly contain the inner mattress coir and support the structure of the erosion control logs.
- Inner Material: Coir Fibers
- Outer Netting: Coir Twine
- Diameters: 9, 12, 16, or 20 inches
- Length: 10 or 20 feet (can be joined together through coir twine)
Coir Log Installation
Coir logs are built for strength and durability even in the toughest of sites and conditions. To secure them to the site, such as a riverbank or stream bank, it's recommended that they're installed with a biodegradable wedge or stake to hold it in place.
These wedges or stakes should be placed along either side of the log to help direct the log along desired paths in the site location.
For increased stability, especially on slopes, stakes or wedges may also be placed directly in the center of the erosion control fiber rolls to help keep them in place.
Plant Life and Coir Erosion Control Logs
It's suggested that local vegetation may be placed within the structure of coir logs. Plants are often chosen for placement around logs and even on top of the log itself, as the coir erosion control material encourages deep root growth as it biodegrades. Vegetation is the easiest way to create a natural erosion control barrier and is often planted to help maintain control after the log has biodegraded.
Coir is often used as an effective erosion control and bank stabilization material and helps build strength along slopes so that plants may begin to take root.