Most current flows near Irwin are 11500CFS, the river may shape up earlier this year if the weather stays on this track. All the boat ramps are open. The river is fishable but a bit off color still. You can do decent with nymphs and streamers because not much dry fly fishing. I like using Pat’s Rubberlegs size 8 in brown and dropping a Red Napolean Jig size 16 or 18 or just a standard size 16 Tungsten Hares Ear  The Idaho Department of Fish and Game encourage the harvest of rainbow trout on all stretches of the South Fork. This is to protect the native Cutthroat trout. There is no limit on rainbows and some of the rainbows have monetary reward tags in the fish. If do harvest any rainbows, cut the head off and deliver it to the regional IDFG office in Idaho Falls and they will scan the head to see if a reward tag is in it. The max reward is $1000.