Tailwater · Mixed · Eastern Sierra, US

East Walker River

Sunlight sparkling across the East Walker River near Bridgeport with autumn shrubs lining the bank.

The East Walker below Bridgeport Reservoir is a trophy-brown tailwater — a desert canyon river that, on its day, gives up browns far bigger than its modest size suggests.

Tomorrow · About as good as it gets
Czech Nymph
Forecast · Tomorrow
About as good as it gets
On the feed top to bottom — start on the rises with a dry, drop a nymph if they stay down.
75% projected
Today's fly
Czech Nymph
Czech Nymph
Conditions on the water · Tomorrow
Live gauge
Level
Steady
1.09 m
Water temp11.5°C
ClarityClear
Weather12°C
WindN 6 km/h
Pressure1016 hPa
Rain · recent0.0 mm
Rain · ahead0.0 mm

The nearest gauge doesn't record temperatures, so we've estimated it — defer to the river keeper's advice.

Water temperature for Brown Trout
Ideal
12°C est.ideal 1016°C
0°14°28°
How to fish it · for Brown Trout
When
Nymphing can work through most of the day.
Where
Cover mixed depths.
Method
Start with tight-line nymphs and adjust if fish rise or drift higher.
Kit
9 ft #4 rod, floating line, 12 ft tapered leader to 4–5 lb fluoro tippet.
Why this works
Excellent — water temperature is right today, though insect activity could be better.
Likely species
Hatch timeline · tomorrowPeak at 11am

12pm(now) Western Blue-Winged Olive

Stage: On emergersApproach: Emerger or dryActivity: 83%
Also:Black Midge46%
Peak emergence window7 food groups active

Peak activity at 11am — Western Blue-Winged Olive (Western Blue-Winged Olive, Peak emergence window)

Sub-surface · on the nymphunder the surface

Hatch predictions

Top nymph shown — see all 2 guilds with Pro.

Start free trial

14-day free trial. Cancel anytime.

Beyond the hatch · worth watchingambient prey(1)

Hatch predictions

Top prey shown — see all 3 with Pro.

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14-day free trial. Cancel anytime.

Evidence
Records-basedModerate confidence

Based on species-occurrence records, not local invertebrate surveys.

Through the year
0–3 scale · September highlighted
J
F
M
A
M
J
J
A
S
O
N
D
Trout seasonSeason
1
2
2
2
2
2
2
2
2
2
2
1
Western Blue-Winged OliveHatch
2
3
3
3
3
3
3
3
2
Pale Morning DunHatch
2
3
3
2
TricoHatch
2
3
2
Black MidgeHatch
2
3
3
3
3
3
3
3
3
3
3
2

Numbers are intensity 0 (none) to 3 (peak) — a guide, not a guarantee.

Ranked for today
Brown Trout fly box
Permits & access
Permit required — see local rules.
  • Special-regulation tailwater — verify current CDFW rules (historically 18" min, artificial/barbless) and the CA/NV reach split
  • TEMPERATURE: no live USGS water temp at 10293000 — temperature is estimated, not measured
  • THERMAL CAUTION: Bridgeport Reservoir is shallow and the release is not reliably cold; be conservative on summer welfare
  • Autumn brown spawning — handle trophies with care.
What's coming
Plan ahead
5-day outlook
Other water nearby · 5
Gallery · 2
  1. Sunlight sparkling across the East Walker River near Bridgeport with autumn shrubs lining the bank.
    The East Walker in autumn
  2. Terrain map of the venue
    Terrain map
About this water

The East Walker below Bridgeport Reservoir is a trophy-brown tailwater — a desert canyon river that, on its day, gives up browns far bigger than its modest size suggests. It can also be a hard, fragile place. Bridgeport Reservoir is shallow and warms in summer, so the release isn't reliably cold the way a deep-bottom-draw tailwater is, and low summer flows can stack thermal stress on the fish. It rewards a flow-and-temperature read more than a hatch chart: enough water to be fishable and cool, not so much that wading gets sketchy. Heavy nymphs and streamers move the big browns; mind the autumn spawning season and handle the trophies as the assets they are. The California reach runs to the Nevada line, where the river carries on under different rules.

Under the surface

The East Walker comes out of Bridgeport Reservoir on the California-Nevada line and runs down a high sagebrush canyon as a tailwater famous for one thing: big, broad-shouldered brown trout in a surprisingly small river. The cold release from the reservoir grows them fat, and the 'Miracle Mile' below the dam has given up browns that would make a Montana angler blink. It's an intimate, twisting high-desert tailwater over gravel, cobble and the occasional weed bed, winding through open country under the bare Sweetwater Mountains. The flow is dam-governed and can swing with irrigation demand, which is the river's great variable. The bed is firm gravel and rock; the lies are the undercut bends, the deeper runs and the seams below the riffles. Wading is comfortable when the flows are sensible. The East Walker is small water that grows large fish, which is exactly the combination that keeps anglers coming back.

Wading: Irrigation driven flow swings

  • Mixed
  • Partly confined
  • Pool riffle
Water quality · US Clean Water Act
  • Aquatic lifeImpaired
What this classification means

EPA ATTAINS assessment unit 'East Walker River, below Bridgeport Reservoir' (CAR6301001020011204100242), 2024 Integrated Report. Aquatic Life use: Not Supporting. Listed impairment causes: Sediment, Nutrients, Oxygen Depletion, Metals Other Than Mercury, Turbidity. This is a Clean Water Act assessment-unit classification (the US analogue of WFD), not a live reading.

Status is for the Clean Water Act assessment unit covering this reach.

EPA ATTAINS (Clean Water Act) · CAR6301001020011204100242

The full read · show the working · for Brown Trout · confidence 90%
How the 84 is built — score × weight = contribution
Temperature100 × 28%28.0
Flow80 × 22%17.6
Clarity95 × 18%17.1
Feeding Time65 × 13%8.5
Pressure80 × 7%5.6
Insect activity62 × 12%7.4
Conditions total= 84
Can you trust it?
Water temperatureair-to-water estimateestimated
Level / flowon-river gaugeobserved
Prey activitymodelled from regional profilemodelled
What would change the calculation
The dawn and dusk windows score higher than the midday lull.
Directions
Seasons & zones
  • Trout 1 January31 December
Related guides
Booking & contacts