Updated October 15, 2026
    Access point

    Twin Branch Dam (Mishawaka)on St. Joseph River (South Bend)

    A crucial barrier for migratory fish, offering excellent opportunities for steelhead and salmon as they stack up below the dam.
    St. Joseph River (South Bend) reportDirections41.7001°N, 86.1396°W

    River flow last 30 days

    02,0004,000Sep 16Sep 22Sep 273,219 cfs
    USGS gauge 04101000 · daily averageUpdated Oct 16
    Flow now
    2,230cfs
    Below the typical range (2,410–3,910 cfs)
    Last 7 days
    Steady
    3,219 to 4,376 cfs
    Bite report · week of Oct 4

    St

    1. 01St. Joseph River flowing at 2900 cfs under clear skies and 45°F.
    2. 02Intermittent Blue-Winged Olive (BWO) hatches and active October Caddis are expected.
    3. 03Muskie Fly and Perch Pattern are highly recommended for predatory species.
    4. 04Focus on deeper runs, current seams, and structure for holding fish.
    5. 05Use heavy nymphing rigs and sink-tip lines for streamers to get flies to depth.

    What to tie on at Twin Branch Dam (Mishawaka)

    Picked from recent reports for this stretch.

    streamer90%

    Muskie Fly

    #3/0#4/0#5/0

    Fall for muskie in large rivers and lakes.

    streamer90%

    Perch Pattern

    #1/0#2#4

    Walleye will be actively preying on smaller baitfish like perch, making this a crucial pattern to drift or strip through likely holding lies.

    egg85%

    Blood Dot Egg

    #10#12#14

    Steelhead and other opportunistic feeders will be keying in on any available eggs in the system, a consistent fall food source.

    Buy at Amazon
    dry85%

    Glo Bug (Orange)

    #14#16

    Resident trout and char, including Steelhead, remain keyed into egg patterns year-round, particularly with lingering salmon eggs.

    dry85%

    October Caddis

    Capitalize on the largest caddis hatch of the year. Fish these large dry flies in riffles and along current seams.

    nymph80%

    Flashback Hare's Ear Nymph

    #14#16#18

    An excellent general searching nymph for early spring, mimicking various mayfly nymphs and effective in off-color or deeper water, ideal for the current higher flow conditions.

    nymph80%

    Damsel Nymph (Olive)

    #14#16#18

    Damsel nymphs become highly active in late spring as they migrate towards shore to hatch, making this a prime pattern for stripping slowly along weed beds where panfish and bass are foraging.

    dry80%

    Elk Hair Caddis

    #14#16#18

    Caddis hatches are common from late spring through fall, making this a reliable dry fly choice for rising fish.

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    streamer80%

    Woolly Bugger (Olive)

    #4#6#8

    A highly versatile streamer that imitates leeches and baitfish, a year-round food source for most predatory species, and effective in varied flows.

    Indiana season by season

    What changes on the water through the year, with the flies for each season.

    Mar – MaySpringRead the guideJun – AugSummerRead the guideSep – NovFallRead the guideDec – FebWinterRead the guide

    Fly shops nearby

    Local flies, current advice and guided trips.

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    6MIRipple Guide ServiceNorthern Indiana