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PLANNERS ' CASEBOOK Grant Run were root wads created from trees that oversight . Planners also helped secure the grant were removed to widen the stream . The upturned funds for the project , and they helped administer roots slow the force of the water, especially on and oversee the work of the stream restoration curves , and slowly decay. Large rocks also were contractor. Grove City Arborist Bob Lowery took placed along the stream edge along with short the initiative to suggest the pilot project in the first sections of tree trunks cut down during the place , and he was instrumental in steering the widening process . The modified bank was planted scope of the restoration project toward a " natural" with cuttings of red twig dogwood , birch , maple , rather than exclusively " engineered" solution . This and willow. The recontoured bank above the project can now be used to justify more restoration Figure 3 stream edge was then seeded with grass and in greenway and community plans throughout the covered with straw. region . CHANNEL REDESIGN OUTCOMES Benefits The Grant Run restoration project provided many benefits , including improved water quality, in- : creased storage of flood waters , healthier habitat , - `'� ,� T� � �► � better aesthetics , and higher values for properties 4 - x,. along the stream . The Grant Run stream restora - �f . ,, . :; •,:� : tion project reduced the severity of erosion that was '; ►! u caused by the increased surface water flows from suburban development in the watershed . The N ULLWDTWI project saved tons of soil that will no longer erode downstream and reach the Scioto River. The bankfull volume of Grant Run after restoration is more than twice as wide as the r - The stream does not have enough room to carry flood water during 1 -2 year bankfull storm events and that about 23 feet wide , causes trees to be undercut by flood water and fall Into the stream. The stream must be widened by w ting old stream bankfull limits . High water, even during back and flattening the banks. Usually only one side Is changed to save trees, -- the first stages of restoration , has not disturbed the restored stream . The complete restoration of Grant Run took several months , but it can now handle the flow of the one - year to three - year flood events ,t, without serious erosion and without the need for armoring the banks . Stream water quality has improved , and there Vt = F will be more varieties of aquatic life in the microcli- < mate . The new plantings of red twig dogwood , BANKFULLWIDTH maple , birch , and willow will not only stabilize the bank but also help filter sediment from surface - - . runoff and slow floodwaters . Tree branches and leaves provide shade that helps reduce water The new stream has more capacity and a gradual slope to reduce erosion. Tree root wads, cut loge and • temperatures , which in turn helps improve aquatic rocks are used to stop erosion along the banks. A rock riffel is placed at intervals of five to seven times the bankfull width to slow the water and add stream oxygen. Riparian trees and cuttings are planted life . The roots will reduce nitrogen from subsurface to stabilize the bank, shade the water, filter surface runoff and provide animal habitat. water and absorb some of the stormwater. The restored stream looks much better than the The Role of Planners eroded and worn stream . Grant Run residents have Planners fulfilled the behind - the - scene support stopped worrying about the loss of their lands and roles that are much less visible than the restoration are pleased with the aesthetic improvements . efforts themselves , yet integral to the success of the Heavy rains no longer back up into residential yards project . Planners maintained the big picture view along the stream . The Grant Run restoration and coordinated project activities through the project is believed to have stabilized and increased complex overlapping jurisdictions of city, county, property values . These observations are based on state , and federal agencies . Individual departments opinions of local Realtors and a Columbus , Ohio , Might unintentionally impede the progress of the study showing that streams and parks increase efforts without the planners providing constant values of adjacent properties by approximately 10 5F, percent . Grant Run has become an amenity again .