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growth media.The initial focus of the Plan is to re-vegetate the upland areas with an appropriate native <br /> mountain big sagebrush community. Initial re-vegetation will need to quickly stabilize soils, increase soil biomass <br /> and prevent invasive weed establishment. Once the understory grassland community is well established future <br /> restoration efforts can focus on developing a more diverse vegetation community which includes shrubland and <br /> forest species based on final topography and landforms. <br /> Road Modifications <br /> The current channelized alignment of the Swan River through the Swan River Resource currently flows through <br /> two separate sets of culverts, the first through Tiger Road and the second through Muggins Gulch Road. Both of <br /> these sets of culverts are in disrepair, are undersized to adequately convey a full range of flows, disrupt sediment <br /> transport and create a fish movement barrier. In order to eliminate this condition, the proposed restoration <br /> reclamation plan will install a properly sized open bottom culvert bridge which will convey natural bankfull flows, <br /> sediment and provide fish passage. The new alignment of the channel is moved south of the existing crossing and <br /> eliminates the need for the Swan River to flow through the second set of culverts at Muggins Gulch Road. <br /> Muggins Gulch Road will need to be shifted and realigned slightly to the north to accommodate the new channel. <br /> The following table provides a summary of the proposed restoration reclamation components within Reach A. <br /> Project Component Quantity Description <br /> Project Component Quantity Description <br /> Mass grading-land 19.7 acres Mass grading and land contouring to natural valley form and <br /> Contouring 130,000 CYDs reconnect groundwater interactions. <br /> 2 New Channel Creation 5,131 feet New channel excavated in approximate alignment of pre- <br /> 2.7 acres disturbance channel.Average channel excavation is <br /> approximately 23 feet bankfull width and depths from I.I to <br /> 3 feet. <br /> 3 Low Permeability Layer 6.3 acres A low permeability liner constructed below the new channel <br /> 4,467 CYDs and riparian zone to minimize infiltration/channel water loss. <br /> Formed from processed compacted native fines and gravel. <br /> 4 Aquatic Habitat 22/22 Within the new channel riffle-pool-glide sequence will be <br /> Instream Riffle-Pool- formed for aquatic habitat and instream bed form diversity <br /> Glide along with non-structure micro habitat features. <br /> Sequences/Micro-Habitat <br /> 5 Riparian Zone — 3.4 acres Streamside area above the bankfull elevation extending <br /> Reclamation landward approximately 20 feet on either side of the <br /> channel. <br /> 6 Outside Bend Bank 2,400 feet As part of the Riparian Zone at critical outside bend areas <br /> Stabilization along channel will require increased reinforcement to <br /> maintain channel form. Bank stabilization will include <br /> compacted gravels/cobbles, capped with growth medium, <br /> native seeding and shrub plantings. <br /> 7 Upland Reclamation --12.7 acres Recontoured valley bottom capped with growth medium and <br /> native seeding. <br /> 8 Tiger Road Bridge 1 A culvert bridge will be installed to accommodate the new <br />