California / West
Tuolumne River below La Grange Dam
A lower Tuolumne report for anglers checking regulated flows, public access, warm-water limits, and conservation guardrails below La Grange Dam.
Image: Generated regional planning image for Tuolumne River below La Grange Dam / BlueStreamFly generated; not exact location / BlueStreamFlyFishability now: Tuolumne River below La Grange Dam fishability today
GreatData confidence: High96/100
Fishable now because the live gauge is falling, weather is usable, and no public alert is active.
Flow observed
3:45 PM UTC
Weather observed
4:00 PM UTC
Score calculated
4:20 PM UTC
Why this rating
Flow
Water temperature
Public alerts
Next 6-12 hours
Improving / hold
A falling gauge and usable weather should keep the next 6-12 hours in play unless tributaries stain or heat builds.
USGS flow
111 cfs
Current trend: flow falling, rating likely holding strong unless weather or clarity changes.
More planning details: flies, flow bands, and live source checks
Fish it today
Start here
Check LGN/USGS, confirm CDFW and posted park rules, then fish the safest public edge with a short plan rather than roaming private banks.
Best flow clue
Stable releases that leave safe public-bank edges and readable seams without creating warm, stagnant, or suddenly changing conditions.
Skip trigger
Skip during hot low-water trout-stress windows, unsafe release changes, closures, or unclear public-access status.
Flow decision bands
Low but fishable
Low stable lower-river water may fish for mixed targets only when temperatures, rules, and public bank access are confirmed.
Best regulated lower-river window
Stable La Grange flow with mild weather and clear target-species expectations creates the most useful setup.
High or changing release
Rising regulated water should move plans away from wading, side channels, and uncertain banks.
Conservation and warm-water caution
Lower-river fishery and project context should keep salmonid pressure conservative during warm or sensitive periods.
USGS flow
111 cfs
Current trend: flow falling, rating likely holding strong unless weather or clarity changes.
Live USGS flow
111 cfs / falling about 10%
Live NWS forecast
73F / Sunny
Live water temperature
53F from USGS
No NWS alert flag
No active NWS alert was returned for this forecast point.
RiverReports is used as the quick chart, backed by USGS 11289650 Tuolumne River below La Grange Dam and CDEC LGN metadata.
Turlock Irrigation District identifies La Grange Dam as the controlling dam just above this lower-river reach.
Stanislaus County park facilities provide public-access context, but posted local rules can be stricter than broad statewide fishing assumptions.
Treat salmon, steelhead, and habitat details conservatively. Check CDFW and current notices before fishing or handling any anadromous fish.
Editorial review
How this report is maintained
This report uses official regulation, flow, weather, access, and public-land sources first, then adds practical planning guidance for fly anglers.
Byline
BlueStreamFly editorial desk
Reviewed by
BlueStreamFly source review
Maintained by
BlueStreamFly
Last material review
2026-05-31
Report confidence
Good confidence
86/100
Good confidence: RiverReports, USGS, CDEC, CDFW, Stanislaus County access information, Turlock Irrigation District dam context, State Water Board project context, and weather data support this lower Tuolumne report. Confidence is moderated by public-access limits, warm lower-river periods, release changes, and species protections.
Regulations
CDFW inland information supports the rule-check path, but current reach-specific tables remain important for lower-river salmonid and warmwater context.
Access
Stanislaus County park facilities support public-access planning, while posted local rules, private edges, and exact bank suitability need confirmation.
Flow and weather
RiverReports, USGS 11289650, CDEC LGN, and the National Weather Service point are attached to the route.
Fishing usefulness
The page now separates regulated lower-river water, warm-season restraint, release checks, public-access caution, conservation context, and backup choices.
Fishability dashboard and source review
2026-05-31 / material content or source review
RiverReports, USGS Tuolumne River below La Grange Dam, CDEC LGN flow context, CDFW inland fishing information, Stanislaus County park facilities, Turlock Irrigation District La Grange Dam information, State Water Board project context, and the National Weather Service point were checked before updating the current fishability guidance.
2026-05-31
Updated Tuolumne River below La Grange Dam with regulated lower-river guidance, park and bridge access cards, conservation cautions, backup cues, stable fishability SEO, and confidence signals.
2026-05-29
Added a page-specific report-confidence meter for Tuolumne below La Grange Dam flow support, lower-river access, dam context, regulation checks, weather, and conservation-sensitive planning guidance.
2026-05-26
Published a new lower Tuolumne below La Grange Dam report with regulated-flow planning, public-access cautions, conservation guardrails, hatches, and practical fly guidance.
Angler planning edge
Local details that change the plan
Best for
Lower Tuolumne flow checks, Public-access bank planning, Cool-season regulated-river sessions
Wade or float
Bank and cautious wade first. Floating or broad bank travel should not be assumed without current legal access and safety checks.
Best flows
Stable releases that leave safe public-bank edges and readable seams without creating warm, stagnant, or suddenly changing conditions.
When to skip
Skip during hot low-water trout-stress windows, unsafe release changes, closures, or unclear public-access status.
Local plan
Check LGN/USGS, confirm CDFW and posted park rules, then fish the safest public edge with a short plan rather than roaming private banks.
Pressure
Pressure is access-point based. The limiting factor is often legal, safe, posted access rather than finding another fly pattern.
Access nuance
County park access and legal fishing rules are separate checks. Both need to be clean before the day makes sense.
Backup water
Move to the Stanislaus or an upper Tuolumne reach when the lower river is warm, restricted, or operationally awkward.
About the river
Setting, character, and why it fishes the way it does.
The lower Tuolumne below La Grange Dam is a regulated Central Valley river, separated from the upper Tuolumne trout and canyon character by dams, diversions, and warmer lowland conditions.
This water can still matter to fly anglers, but the value is in careful planning: flow changes, access rules, water temperature, conservation status, and whether the day is actually fishable from legal public ground.
Because this reach supports important native and anadromous-fish context, the page avoids casual harvest language and keeps users pointed back to CDFW, flow, and access sources before every trip.
Target species
Resident trout
Possible in suitable cooler flow windows, but not the same fishery as the upper Tuolumne.
Chinook salmon and steelhead
Conservation-sensitive anadromous fish context; check CDFW rules and avoid unsupported targeting assumptions.
Warmwater species
May shape practical fly choices during warmer lowland periods.
Reading the water
Stable release
Best for reading banks, current seams, and legal public access without sudden wading changes.
Hot low water
Usually a reason to skip trout handling and treat the river as a conservation-first plan.
High or changing release
Back away from wading and re-check park access, flows, and safe footing.
Cooler shoulder-season water
The best window for cautious nymphing or streamer work if regulations and access allow.
Best seasons
Winter
Can offer cooler water and less heat stress, but regulations and access still drive the day.
Spring
Condition-dependent around releases, runoff management, and fishery protections.
Summer
Often limited by heat, lowland temperatures, and ethical fish-handling concerns.
Fall
Check CDFW and conservation context closely before assuming angling opportunity.
Preferred flow source
Tuolumne River below La Grange Dam
RiverReports is the preferred chart source when coverage exists. When a matching USGS gauge exists, keep it open as the official backstop for station data and current hydrograph context.
USGS data chart
Official USGS trend
Streamflow over the latest USGS reporting window.
Latest
111 cfs
Jun 3, 5 PM UTC
Weather
River weather report
Weather can change wading safety, road access, water temperature, hatches, and the best time of day to fish.
Live forecast loads as you reach this section
This keeps the report fast while still using the official National Weather Service forecast point.
Hatches and flies
Hatch chart and fly picks
Winter
Midges, BWOs
Zebra midge, BWO emerger, small pheasant tail
Spring
Caddis, mayflies, small baitfish activity
Caddis pupa, soft hackle, small minnow
Summer
Caddis, terrestrials, warmwater forage
Foam ant, caddis dry, small streamer
Fall
Midges, BWOs, baitfish windows
BWO emerger, zebra midge, olive bugger
Lower-river nymphs
Zebra midge, pheasant tail, caddis pupa, perdigon
Stable flows and cooler water leave fishable seams near legal public access.
Small streamers
Olive bugger, small minnow, black leech
Slight color or low light makes bank structure more useful.
Warmwater crossover
Foam terrestrial, small popper, crayfish
Summer conditions point away from trout and toward appropriate warmwater tactics.
Tactics
How to fish it
Check the LGN/USGS flow first, then decide whether the release is safe and useful from public access.
Use signed public sites and posted park rules. Do not turn private banks or restricted areas into informal access.
Fish cooler windows and stop when water temperature or fish-handling risk becomes the main issue.
Avoid unsupported salmon or steelhead targeting assumptions; CDFW rules and closures come first.
Rigging
Rod, leader, and setup notes
A 5-weight rod handles most nymph, small streamer, and dry-dropper work on fishable lower-river days.
Carry 3X through 5X for nymphs and streamers, with lighter tippet only when clarity and fish behavior justify it.
Use a thermometer and keep wading conservative because release changes can affect footing quickly.
Pack sun protection and water; this is exposed lowland water, not shaded alpine water.
Access
Access and planning notes
La Grange Dam and Basso Bridge context
Release and reach checkWade / float / trail
Gauge / bridge / bank scout
When to pick it
Start here when flow is stable and legal public access is confirmed.
Caution
Dam context does not make every nearby bank fishable or public.
Fox Grove and county park facilities
Developed public accessWade / float / trail
Park / bank / ramp
When to pick it
Use it when park rules, access hours, heat, and flow fit the day.
Caution
Posted rules, private edges, and seasonal conditions still matter.
Lower Tuolumne project corridor
Conservation-aware planningWade / float / trail
Map / bank / warmwater scout
When to pick it
Pick this when target species and conservation context match the season.
Caution
Do not assume trout-style tactics or harvest rules across the lower river.
Public access below La Grange is not the same as unlimited bank travel. Posted local rules, closures, and private-property edges matter.
Park rules can be stricter than a statewide regulation summary, so confirm the sign at the actual access point.
Release changes, steep banks, and warm lowland conditions make conservative wading and fish handling important.
Regulations
Check before fishing
Check CDFW's current freshwater regulations and any emergency or local posted restrictions before fishing. Do not rely on a broad statewide assumption for this regulated lower-river reach.
Primary base
La Grange, Modesto, or Turlock
Best day style
Public-site bank and light wade planning only where park rules, posted signs, and CDFW regulations allow
Check first
RiverReports/CDEC LGN, USGS 11289650, CDFW regulations, posted park access, and local weather
Safety
Dam-release changes, warm water, posted access limits, private banks, lowland heat, and conservation-sensitive fish handling
Gear
Helpful gear for this water
5-weight rod
A practical all-around lower-river setup for nymphs, light streamers, and crossover flies.
Thermometer
Important for deciding when trout handling is inappropriate.
Sun and heat kit
Lowland river access can be exposed and hot.
Wading staff
Useful where bank edges, cobble, and release changes make footing uncertain.
Nearby water
Other water to research
Backup logic
High water
Compare the Stanislaus, Merced, or another lower-valley option after checking access and release trends.
Heat
Shift expectations toward warmwater targets or fish early instead of stressing salmonids.
Storms or stain
Let lower-river color and regulated flow settle before committing to banks or ramps.
Access issue
Use county-listed access or move to another river rather than guessing at private banks.
Tuolumne River
Use the main Tuolumne page for a broader watershed view.
Tuolumne River below Hetch Hetchy
A very different upper-canyon flow and access plan.
Stanislaus River
Another regulated Central Valley option with separate flows and access.
FAQ
Fast answers
Is Tuolumne River below La Grange Dam fishable today?
Tuolumne River below La Grange Dam looks very fishable right now. The live score is 96/100, based on current flow, weather, public alerts, and the report's planning context. Recheck the linked gauge and forecast before leaving because conditions can change quickly after rain, heat, access changes, or flow swings.
What flow is best for Tuolumne River below La Grange Dam?
Stable releases that leave safe public-bank edges and readable seams without creating warm, stagnant, or suddenly changing conditions.
When should I skip Tuolumne River below La Grange Dam?
Skip during hot low-water trout-stress windows, unsafe release changes, closures, or unclear public-access status.
Is Tuolumne River below La Grange Dam safe to wade right now?
The fishability score is not a wading guarantee. Wade only where your chosen access has safe edges, clear footing, legal entry, and no forced crossings; high, rising, stained, or storm-affected water should be treated conservatively.
Is this the same as the upper Tuolumne?
No. This page covers regulated lower-river water below La Grange Dam, not the Sierra or Hetch Hetchy reaches.
What flow should I check?
Use RiverReports/CDEC LGN for the quick chart and USGS 11289650 as the official below-dam flow reference.
Can I fish anywhere below La Grange Dam?
No. Use signed public access only and follow posted local rules plus current CDFW regulations.
Sources
Source set for this report
Reviewed 2026-05-31