Reservoir Shoreline Stabilization
IAS Water Quality Skimmers
D2 Land & Water Resource would like to announce the addition of the IAS Water Quality Skimmer to our product line. The IAS Water Quality Skimmer is a floating device which slowly releases/drains downstream surface water from ponds, sediment traps and/or basins at controlled flow rates. This is all accomplished because the IAS Water Quality Skimmer floats near the surface of the water where the concentration of suspended solids is at its lowest. Competitive products typically take sediment-laden waters from the bottom of a body of water and will run these waters through a filtration system (usually a bag or other filtration-type devices) that often clog or require heavy equipment to move off site when dewatering operations are completed. The design of the IAS Water Quality Skimmer allows sediment to stay in the designated sediment traps/basins and clean waters to leave your jobsite. The IAS Water Quality Skimmers are ideal for use on municipal, state, and/or federal projects. These skimmers are available in multiple sizes and have no moving parts that can break or become clogged. Call your D2 Land & Water Resource Regional Sales Manager to see if the IAS Water Quality Skimmer is right for your project. CLICK HERE FOR MORE PRODUCT INFORMATION AND AVAILABLE SIZES.
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