Salmon River S42/S43 Diversions Modifications Fish Passage Improvement; Instream Habitat Project IDIDFG_SA_24Recovery DomainsInterior ColumbiaStart Date - End Date - StatusCompletedLast Edited04/26/2021 1 - 1 Description Goal: install several boulder drop structures to halt and reverse River downcutting in relation to the use of the S42 and S43 diversions. Benefit: Passage maintenace Species: SK,CH,SH,BT,CT. Photographs. .