DESCRIPTION
The proposed Lower Hoh Log Jam Project will be located on the southern edge of the Hoh River floodplain (RM 1.3), within the northern boundary of the Hoh Indian Reservation. It will provide channel stability, habitat diversity, side channel habitat protection and sediment control in an area of historically dynamic channel migration. From 1994 to 2003, the mainstem Hoh occupied this southern margin. Extensive bank erosion (approx. 28 acres) and flooding occurred during winter storm events. Bank armoring along the river's northern edge accelerated bank erosion to the south, necessitating the installation of three rock vanes along the southern bank in January 1999. In 2004, the river switched back to the north and remains there today. This project will begin immediately downstream from the outlet of a 150-acre side channel complex, known as the 'Fletcher Tree Farm,' and will continue 600 feet downstream. The three proposed jams will use the existing rock veins as foundations and will maintain connectivity, establish low velocity collection points for parr migrating into the side channel and create protected staging pools for out-migrating smolts and returning adult spawners. Acquisition of this valuable floodplain habitat by the Hoh Tribe will be finalized in the very near future allowing additional protection and future restoration. This, in conjunction with the proposed log jam project, will greatly benefit life stages of all salmon, trout and char species in the Hoh basin.