aforementioned studies conducted by various federal and state agencies and universities as a result of these studies i have now developed a system and method of bypassing these hydroelectric facilities and other natural or man made obstructions that take into account the natural instincts desires actions and reactions migratory paths and migratory habits of both upstream and downstream migrating fish what i have done is create a natural like stream or river inlet in the reservoir above the forebay and directly in the downstream migratory path of the juvenile fish this inlet directs the fish into an artificial channel that simulates duplicates or replicates the natural stream or river obstructed by the dam i accomplish this by excavating a channel around the dam and lining this excavation with pneumatically placed concrete shotcrete or gunite to create a bedrock or riverbed condition suitable for the retention of native sand and gravels while lining this channel riffles ledges undercut banks and other natural features will be incorporated to create flows and velocities similar to a natural stream or river upon completion of the lining the larger excavated materials and other natural resources such as dead tree remnants will be placed in a manner mimicking the original waterway the smaller excavated material such as sand gravel and cobbles will then sporadically be placed in the channel water would.