Stream & Wetland

In the past, landowners and tenant farmers survived off of extensive farming throughout the Southeast. The scale of those farming processes damaged our once healthy streams. In the 1950’s and 60’s many of our larger streams were dredged and straightened to reduce frequent flooding over adjacent low lying properties. Before the 1980 land development boom many of our tributary streams were already becoming incised; in the last 20 years of the century, the impact of many additional large scale residential and commercial developments caused the impairment to increase exponentially.

Our goal and focus is to support mitigation bankers by providing them cutting edge stream and wetland designs that mimic nature. Many engineers to-date still rely on concrete and rock to harden streams in place without considering the health of the stream and it’s habitat.

This new and challenging design field combines knowledge and skill to design natural stream channels that will be stable for generations to come. Implementing Natural Channel Design, will reduce erosion rates while increasing habitat and enhancing wildlife. Additionally, by reconnecting streams to their historic floodplains, we simultaneously restore and preserve the adjacent wetland areas.

Our civil engineering does not stop after the project is permitted. We offer on-site validation of compliance with design specifications for all stream and wetland construction, and have developed a 40 page booklet of details to help the contractor during the construction phase. The success of restoration projects is tied directly to the quality of the contractors selected, who must have both education and experience in this field.

Engineering303, L.L.C. has adopted and completely supports the Rosgen philosophy of Natural Channel Design. By carefully observing stable and healthy streams (reference reaches) we can successfully design streams that are healthy and vibrant. By using natural materials (i.e. root wads, log vanes, brush mattresses, etc.) and native plants in our designs we assure mankind a better environment and quality of life for our future.

Working in conjunction with Corblu Ecology Group & other consultants we can determine if “prior converted wetlands” can be re-established to their former conditions. By raising stream elevations adjacent to former wetland areas and removing ditches and french drains, we can raise the water table and reconnect to the hydric soils of the old wetlands. Wetlands are mother nature’s water quality filter. In the past, wetlands were considered to be a health hazard and a nuisance to farming and other agriculture efforts. In draining existing wetlands we lost our water quality filters and lowered the natural water table, this in turn lowered crop yields in the fields and land adjacent to the altered wetland areas.

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