Coir Logs
FryeFlow: Dewatering Filtration Bags
When pumping in or around the saturated soils that exist near the waterline elevation it is important that measures be taken to minimize sediment transportation into a body of water. The FryeFlow dewatering filtration bags are the easiest to use and most economic solution available to ensure that sediment does not leave your jobsite. FryeFlow dewatering bags are sized to meet the discharge rates of most pumps and are available in custom sizes for pumps greater than 6”. These filtration bags are made of a high-strength, high-flow, nonwoven geotextile to allow for maximum clean water flow. The bags retain the sediments that are pumped in and allow filtered water to pass through.
Typical use guide:
- A bed of open graded stone is prepared whose area is greater than that of the Dewatering bag; stone bed is to be reasonably flat, open graded aggregate bed sized appropriately to dewatering bag dimensions.
- First an appropriate number of lifting straps are placed over aggregate bed to facilitate later removal; the dewatering bag is then unfolded on the prepared bed and oriented such that the dewatering bag has aggregate beyond all sides; pump hoses are brought to the dewatering bag
- Additional perimeter control BMP’s are placed on all sides of the stone bed for energy dissipation and to control any secondary sediment movement.
- Hose is then placed into the dewatering bag via the built-in nozzle; connection between bag and hose end to be secured with appropriately sized worm clamp.
- Turn on pump to slightly above the idle position and do NOT increase throttle until a proper filter cake is developed. Once the filter cake is developed increase throttle to desired position and continue dewatering activities
- Dewatering bag is deemed as “full” when it can no longer efficiently filter sediment, or when the rate at which water passes through the filter decreases to impractical levels.
- Repeat as necessary until dewatering applications are complete or as instructed by project engineers/inspectors.
- Dispose of used bags in accordance with local, state, and federal regulations. Disposal may require machinery.
More information coming soon! Click HERE to see other great products offered by D2 Land & Water Resource, or contact your Regional Sales Manager for more information about the Frye Flow Dewatering Filtration bags.
Reservoir Shoreline Bioengineering Utilizing Rock Roll Wave Break with Vegetated Coir Logs
Rock Rolls Placed on Eroded Reservoir Shoreline Prior to Installation of Vegetated Coir Logs
In 2002, we were contacted by a consultant who had a contract to administer a Lake and River Enhancement Grant on Lake Lemon Reservoir. The goal of the Indiana Department of Natural Resources Division of Fish and Wildlife’s Lake and River Enhancement Section is to protect and enhance aquatic habitat for fish and wildlife, to insure the continued viability of Indiana’s publicly accessible lakes and streams for multiple uses, including recreational opportunities. Upon visiting the site we recommended the use of a soil bioengineering technique utilizing a breakwater and vegetated coir logs. The consultant expressed concern as several shoreline planting techniques funded by LARE grants had been installed and had subsequently failed. Our technology utilizing vegetated coir logs in combination with a rock roll wave break had not been introduced to the consultant or the managers of Lake Lemon. We assured the consultant that the techniques proposed using vegetated coir logs had been working locally for us since 1998 and had been used successfully in Europe for decades.
- Vegetated Coir Logs Placed and Laced to Rock Rolls on Eroded Reservoir Shoreline One Month after Installation
Lake Lemon is formed by Lake Lemon Dam on Beanblossom Creek in Monroe County, Indiana and is used for drinking water purposes. Construction of Lake Lemon Dam was completed in 1952. Lake Lemon is an artificial reservoir with 24 miles of shoreline. Like most reservoirs, shoreline erosion is extensive at Lake Lemon, due to fluctuating water levels, wind waves and waves generated from recreational boating. The site provided a 6 foot wide shallow water shelf in front of a 4-6 foot tall vertical bluff. The soils were glacial till, rock and shale. Wave energies were such that a hard armor break water was necessary. The rock rolls provided a appropriate wave break as well as an anchoring platform for the vegetated coir logs.
Native plants were found around the eroded shoreline. The wave energies and fluctuating water levels prevented the naturally occurring native species from colonizing the eroded shallow water shelf and bluff. The vegetated coir logs provided a technique whereby a broader community of native plants could be successfully introduced on this extremely difficult-to-plant site. Vegetated coir logs provide a sure method of successfully establishing a native plant community on sites that have high wave or flow energy, are shady, have poor soils, are heavily predated by water fowl, or are otherwise difficult sites on which to establish vegetation. Vegetated coir logs are easily combined with a variety of hard armors to provide a transition from live water to vegetation. Vegetated coir logs were inspired by the classic technique of live fascines. This technology allows the installation of a native plant community at any time of the year and limits the requirement for experienced and skilled labor.
Native Plants after 5 Years have Colonized the Eroded Reservoir Shoreline having been Successfully introduced with Vegetated Coir Logs
Vegetated Coir Logs Placed with Rock Rolls on Eroded Reservoir Shoreline Subject to One Half Mile Wind Fetch and Ski Boat Waves 5 Years after Installation
Vegetated Coir Logs Placed with Rock Rolls on Eroded Reservoir Shoreline Subject to One Half Mile Wind Fetch and Boat Waves 5 Years after Installation
Coir Logs are now Made in The USA
Coir logs are manufactured in the USA by D2 Land & Water Resource, Inc. in Indianapolis, Indiana. Our central location allows us to economically ship the quantity and type of coir logs your need for the project. No more waiting 8-12 weeks for imported materials or buying out of a pile of inventoried coir logs that may or may not meet the specifications. Why buy a full container of imported coir logs when you can get what you want, when you want it? Why buy, unload and store coir logs when our just in time manufacturing facility can ship straight to your project. We will make you the coir logs you want when you want them.
(16EA) 12" Made in the USA Coir Logs Palletized
D2 Land and Water Resource will custom manufacture the coir logs to your specific diameter, size, fiber density, and exterior net style. Our coir logs range from 8” to 20” in diameter. We also offer a 12” x 10” and a 12” x 16” rectangular shape. All sizes are available in standard 10′ lengths but we will make coir logs to any length you need to make your project go more smoothly. Fiber densities range from 5 to 9 lbs per cubic foot. We have a bright yellow net for sediment control coir logs, natural coir nets for low energy short duration applications, and brown, flexible strong and durable poly net for demanding applications along rivers, reservoir shorelines, and coastal areas. D2 Land and Water Resource manufactures the full range of coir logs to match any of your needs.
Made in the USA Coir Logs Stack for Ease of Storage
Made in the USA Coir Logs Stack for Ease of Storage
We can ship Made in the USA coir logs factory direct to you via LTL, TL, Flat Bed or Rail. We palletize coir logs to make loading, unloading, storing, and staging on jobsites more efficient. D2 Land & Water Resource has a passion for coir logs that is unrivaled. Our highly experienced technical support staff can assist you in the design, specification, budgeting and delivery of your project utilizing Made in America coir logs. We have developed many innovations regarding the technology of coir logs and are not done. We have several developments on the drawing board to further enhance the performance and utility of coir logs. Whether you are installing vegetation along a reservoir shoreline, Stabilizing a riverbank, or pond edge, or simply looking for cost effective sediment control, D2 Land & Water Resource has the appropriate coir logs for your project
Cool Creek Stream Bank Stabilization with Coir Logs and Turf Reinforcement Mats
Cool Creek Banks Graded in March 2007 Prior to Installation of Coir Logs and Turf Reinforcement Mats
In 2005 D2 Land & Water Resource was contacted by a consultant who needed to perform a mitigation planting in order to permit a new housing development along Cool Creek in Hamilton County, Carmel, Indiana. A shear stress analysis indicated that turf reinforcement mats with native plants could sufficiently stabilize the stream banks of Cool Creek. Coir logs were used to provide long term protection of the low bank position of the turf reinforcement mats. Coir logs initiate sediment deposition on top of the turf reinforcement mats during flood events. Coir logs also armor and provide a transition from the water to the turf reinforcement mats.
After the banks of Cool Creek were graded, native plant seeds were sown. Turf reinforcement mats were placed over the native seeds. BioNet 100% biodegradable erosion control blanket were placed on the upper bank over native plant seeds. Coir logs were anchored over the turf reinforcement mats at the normal water elevation.
Three and a half years after installation the dormant native plant community can be seen having established successfully through the turf reinforcement mats. The coir logs can still be seen in the low bank position. The coir logs used were 20 inches in diameter. The sediment deposition behind the coir logs and on top of the turf reinforcement mats is in excess of twenty-four inches. This system provided a stream bank stabilization armor equivalent to twenty-four inch rip rap. This natural system also provided the consultant and developer with an approach acceptable to the permitting authorities of IDNR, IDEM, and the USACE. Watch for a new picture this spring as the native plant community comes out of dormancy.
Looking Upstream at Coir Logs on Top of Turf Reinforcement Mats
Looking Upstream at Coir Logs on Top of Turf Reinforcement Mats
Riverbank Stabilization with Coir Logs and Native Plants on Hawaii
Riverbank Erosion Prior to Stabilization with Coir Logs and Native Plants
Riverbank Erosion Prior to the Installation of Coir Logs and Native Vegetation. This design was chosen to stabilize an environmentally sensitive stretch of River Bank on the Island of Oahu, HI. The project was performed in conjunction with Geotech Solutions, an erosion control distributor in HI, and individuals from the University of Hawaii.
Steep gradients and intense rainfall on the island provided a challenging site. Coir logs offered a natural, green solution for the environmentally sensitive area along the river flowing out of the mountains of Saddle City.
Native vegetation works extremely well as a riverbank stabilization technique. Coir logs provide a natural device to enhance the ability of native plants to establish. The native plants can survive and stabilize waterways even under extreme conditions but successfully getting the plant community established can be very difficult. Coir Logs can be used to successfully introduce a native plant community on the first attempt, even on extreme sites.
Photo taken January 2004 by Jim Blazek Indianapolis, IN after installation of Coir Logs and Native Plants
- Photo Taken July 2004 of Environmentaly Sensitive Riverbank Stabilization with Coir Logs and Native Plants