This page contains a Flash digital edition of a book. Managing & Maintaining our water channels

Bioengineering innovations and developments

The way forward MIKE COOPER, AGA GROUP

nnovations and developments using bioengineering techniques have come a long way since 1990 when green engineering was introduced into the UK from Germany by MMGCES (now part of the A.G.A. Group).


To-day fibre coir rolls and indeed other coir modules are used with a variety of materials, both natural and synthetic, to resolve construction in watercourse projects. Bio- engineering has become the popular environmental and cost effective answer to many erosion control, channel maintenance and river training schemes.

Circumstances will often dictate the use of hard construction materials but where sound engineering solutions are not compromised the green option can be the preferred choice given considerations to, site location, channel usage, flow volumes, and of course fiscal aspects. Even where concrete, steel or plastic is employed, the introduction of bioengineering techniques will mitigate against the stark appearance of these materials. Keeping adverse environmental impact to a minimum is of prime importance in using bioengineering systems.

These examples of developments for clients by the A.G.A. Bioengineering Systems Ltd demonstrate the flexibility and scope to which bioengineering solutions can be put.

Reinstating disturbed habitat of engineering works quickly to their natural state may depend on design techniques and the correct use of pre-vegetated coir modules to ensure rapid and healthy growth. This is best achieved when pre-grown coir units maintain a reliable specification.

They should be densely packed to a high compression ratio, be grown under controlled conditions, supporting the correct selection of well-established vegetation. Native wetland plants used in A.G.A. Group projects are selected for their adaptation to varied physical conditions and also provide excellent cover for invertebrates, fish and wildlife.

The A.G.A. Group provide bioengineering solutions from Olympic parks to the village ponds.

A.G.A. Bioengineering Systems Ltd was formed in 2005 by amalgamating the 70 acre aquatic nurseries of Merton Hall Ponds, the geotechnical resources of MMG Civil Engineering Systems and over 30 years’ experience of the various divisions of the A.G.A. Group.

Following bank erosion control measures immediate wetland areas behind were maintained using well packed hardwoods mattresses (eliminating the importation of heavy fill) over which pre-vegetated coir pallets were installed.


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