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River Bank Protection with Coir Logs

Shoreline Erosion Control and Bank Stabilization

coir logs for bank stabilization

Question: Hello, I am looking for coir logs or some other type of erosion control fabric that I can use for river bank stabilization. I was wondering if this was something that you might have available. Also I was wondering if there was any way to determine the right size log for my project?

Answer: For river bank stabilization, Coir Fiber Logs are a great biodegradable option for natural erosion control. Install these logs along stream or river banks to help create a firm foundation for stabilization and other erosion control applications.

Note: Coir, like many products, is sourced from overseas. During these challenging times, due to trouble with supply and getting the products through the port systems, many products are less available. When they are available, they are more expensive. Coir is one of the products affected this way, across the entire industry. However, there are alternatives. As a practical and affordable alternative to coir logs or wattle, you might consider sediment filter logs. They are biodegradable, environmentally friendly, and perform in all the same ways that coir log and wattle do. Please see Sediment Filter Logs (pdf). Call us for pricing or with questions.

Interested in our other biodegradable erosion control products? See our helpful guide on all the Erosion Control Products we offer!

Our friendly staff is here to help you get the exact product you need!.

How to Determine Coir Log Sizes

coir logs sizesTo determine sizing for coir logs, we typically ask customers to consider their application and the type of conditions in which the logs will be used. Some site conditions to consider include:

  • Available Diameters: 12, 16, or 20 inches
  • Slope Size (3:1, 2:1, etc.)
  • Water Flows (How fast is the water flowing?)
  • Desired Application (What kind of control are you looking to achieve?)
  • Duration of the Project
  • Vegetation Needing to be Planted

Coconut coir logs will typically be 10 feet in length. The diameter may vary, as well as the anchoring spacing depending on your location.

Technical Specifications for Erosion Control Logs

Standard Density Coir Logs

These are the industry standard for use in average conditions and at a price point that's budget friendly. 100% Biodegradable, the Standard Density Coir Logs for river banks are made of 100% coir encased in a 2"x2" coir netting. Coir Logs for riverbank reinforcement promote a natural solution to erosion control and slope stabilization, while creating an environment that supports vegetative growth for long term erosion control as the coir eventually biodegrades.

High Density Coir Logs

High density coir logs are recommended for use on rigorous terrain, areas exposed to high flow or harsh environmental conditions. They are also a reliable erosion control solution for streambanks and lakeshores, as well as for slope stabilization and river bank reinforcement. Manufactured with 100% coir fibers encased in a rhombic coir netting, these high-density coir logs are known for solid performance in the most demanding situations and for the longest duration in the field.

Pre-Drilled Coir Logs

Amazingly convenient, the installation of these coir logs is a snap. They use fewer stakes; simply secure them with stakes through the pre-drilled slots in the logs. The slots can also be used for planting seedlings. The slots are approximately 2 feet apart. Pre-Drilled Coir Logs are available in standard or high-density options and a variety of sizes.

Diameter 12" (30 cm) 16" (40 cm) 20" (50 cm)
Weight 5.5 lbs./ft.
(8.2 kg/m)
9.5 lbs./ft.
(14.1 kg/m)
15 lbs./ft.
(22.3 kg/m)
Density 7 lbs./ft³ (112 kg/m³) or
9 lbs./ft³ (13.4 kg/m³)
7 lbs./ft³ (112 kg/m³) or
9 lbs./ft³ (13.4 kg/m³)
7 lbs./ft³ (112 kg/m³) or
9 lbs./ft³ (13.4 kg/m³)
Lengths 10 ft.
(3.05 m)
10 ft.
(3.05 m)
10 ft.
(3.05 m)
Outer Net 80 lbs. (356 N)
3 Ply Coir
80 lbs. (356 N)
3 Ply Coir
80 lbs. (356 N)
3 Ply Coir
Openings 2" x 2"
(5 cm x 5 cm)
2" x 2"
(5 cm x 5 cm)
2" x 2"
(5 cm x 5 cm)
Inner Core Coir Mattress Fiber Coir Mattress Fiber Coir Mattress Fiber

Coir Logs Product Information and PDFs

Additional Shoreline Erosion Control Options

coir blanket and log working together for bank stabilizationIn addition to the coir logs, another natural erosion control option you may consider is a Erosion Control Products Erosion Control Mat. Made from the same 100% natural, biodegradable coconut coir materials, these products are a durable option and often used for slope or bank stabilization applications. Coir Mats are:

  • Available in different weights for slopes up to 1:1 or flows up to 17 fps.
  • Designed with planting and vegetation in mind, with a woven construction.
  • Biodegradable over 4-to-6 years.

Similar to coir logs, coir mats can be installed along the riverbanks to help with river bank erosion. Erosion control mats have also commonly been installed along slopes and other locations to help with reestablishing vegetation in the area. Often, it is beneficial for a project to use both coir mats and coir logs to establish the most strength and support.

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Questions about river bank protection? Please give us a call at 1-863-261-8388 and our team will be happy to help you.