7-day U.S. Geological Survey chart
Recent flow
Discharge
336 cfs119 cfs
Sep 5Sep 12
Latest reading: 137 cfs. Stable over about 6 hours. Chart covers Sep 5 through Sep 12; readings are provisional and may be revised.
Should I go fishing?
Check the water temperature first.
Water temperature is unconfirmed. Use a stream thermometer; stop trout fishing at 70°F or warmer, or sooner if fish show stress.
Fishing rating92
Rating updatedRiver local time:
Why this recommendation?
USGS shows 137 cfs. The flow has been stable over about 6 hours. USGS marks this reading provisional and may revise it. USGS records for this date (1980-2025, 46 readings) show a typical middle range of 88 cfs to 260 cfs. Flow is within the typical range for this date, so weather, temperature, and access become the next checks.
Available live dataHighHow much of the live flow, weather, and alert data came back.
Confidence in this recommendationMediumWater temperature not verified; do not use this score to clear warm-water risk.
Usually checks again about every 45 minutes
If you go
- Check first
- Use flow and temperature before deciding whether to wade, nymph, or streamer fish.
- Try
- Check USGS flow and temperature trend before stepping into the channel.
- Leave when
- Skip or pivot when releases make wading unsafe, water is warm for trout handling, storms or dam changes are active, trail access is restricted, or the exact PFBC special fishing rule reach has not been confirmed.
Flow and weather
Showing server-checked river conditions while current readings refresh.
- Flow
- 137 cfs
- Stable over about 6 hoursU.S. Geological Survey may revise this reading
- Air forecast
- 59°F
- Next 24h high
- 79.0°F
NWS air forecast near
- Rain chance
- 0%
This is an air forecast, not a river-temperature reading. Check the water with a stream thermometer before fishing in hot weather.
Latest stored weather check
Mostly Clear
- Wind
- 0 mph
- Weather checked
More forecast and source details
Mostly Clear
National Weather Service
Blue Marsh and Reading, Pennsylvania
The National Weather Service forecast is temporarily unavailable.
Live data
Where these readings come from
Current U.S. Geological Survey gauge: Tulpehocken Creek near Reading
Stable over about 6 hoursU.S. Geological Survey may revise this readingObserved
Flies for this time of year
Seasonal starting points, not a live hatch report. Match what you see on the water.
- Sulphur Mayfly PatternsSulphur emergerView fly guide ↗
- Elk Hair CaddisView fly guide ↗
- Ant PatternsantView fly guide ↗
- Beetle PatternsbeetleView fly guide ↗
- Zebra MidgeView fly guide ↗
See flies for every season
SeasonWhat to look forFlies to try
Winter
What to look forMidges, tiny BWOs, scuds, sowbugs, and slow tailwater nymphing
Flies to try
March to May
What to look forBWOs, caddis, sulphurs, crane flies, and early tailwater bugs
June to SeptemberThis season
What to look forSulphurs, caddis, terrestrials, midges, and low-light streamer windows
October to December
What to look forBWOs, midges, caddis remnants, and baitfish or sculpin movement
Each fly name opens its matching Fly Box guide.
More fishing tips
Methods, fish species and trip notes
How to fish Tulpehocken Creek today.
Fish the Tulpehocken as a small tailwater. Stable releases and cool water support nymphing and hatch work. Sudden changes, heat, or crowded banks call for a more conservative plan.
Low release
Use light nymphs, midges, scuds, and careful dry-fly approaches in softer lanes.
Moderate flow
Fish seams, drop-offs, and banks with nymph rigs or dry-droppers.
Higher release
Avoid unsafe wading and use streamers or heavier nymphs only from safe edges.
Warm periods
Check temperature and shift away from trout if release and weather make handling risky.
Wading, bank fishing or floating?
Access choicesNo single best option
Wading and Bank fishing have the same top score. Use current access, footing, weather, and local rules to choose.
Wading92/100
Wading is in play only where your chosen access has clear footing, legal entry, and no forced crossings.
Bank fishing92/100
Bank and edge fishing remains a practical low-commitment option if access is legal and footing is safe.
FloatingNot recommended
This report does not recommend floating this reach.
Full river report
Is Tulpehocken Creek worth the trip today? Check flow, weather, hatches, access, and rules for Pennsylvania before you go.
The useful Tulpehocken plan is the Blue Marsh tailwater and downstream trout area. USGS 01471000 is a better public flow check for this route than a broad watershed guess, and PFBC section rules matter before you rig.
Fishing words used on this page
- U.S. Geological Survey (USGS) gauge
- A USGS gauge is an official river station that measures flow or water height.
- Pennsylvania Fish and Boat Commission (PFBC)
- PFBC is the Pennsylvania agency that sets fishing rules and manages fish and access programs.
- Cubic feet per second (cfs)
- Cubic feet per second, or cfs, shows how much water passes the gauge each second.
- Technical fishing
- Technical fishing means the fish are hard to fool, so careful casts and natural drifts matter.
- Nymph
- A nymph is a young water insect. Anglers also use the word for a fly that copies it.
- Limestone stream
- A limestone stream runs through mineral-rich rock and often has clear, cool water.
- Seam
- A seam is the line where fast and slow water meet.
- Blue-winged olive (BWO)
- Blue-winged olives, or BWOs, are small mayflies that often hatch in cool or cloudy weather.
- Caddis
- Caddis are small water insects. The adults look a little like tiny moths.
- Emerger
- An emerger copies an insect as it rises from below the water toward the surface.
Why this call
Why this score
FlowHelps
USGS shows 137 cfs. The flow has been stable over about 6 hours. USGS marks this reading provisional and may revise it. USGS records for this date (1980-2025, 46 readings) show a typical middle range of 88 cfs to 260 cfs. Flow is within the typical range for this date, so weather, temperature, and access become the next checks.
SeasonHelps
Fall: Cooler water, BWOs, and streamer windows make it a useful shoulder-season option.
WeatherHelps
The current NWS air forecast is about 59F, and the next 24-hour high reaches about 79F. Mostly Clear.
Public alertsHelps
No active NWS alert was returned for this forecast point.
Fishing usefulnessHelps
Skip or pivot when releases make wading unsafe, water is warm for trout handling, storms or dam changes are active, trail access is restricted, or the exact PFBC special-regulation reach has not been confirmed.
Trip notes
Check these before you choose a reach.
Use USGS 01471000 near Reading as the primary live flow check. Stable, cool releases are best. Higher releases, sudden changes, or warm low-water periods should narrow or cancel the trout plan.
Skip or pivot when releases make wading unsafe, water is warm for trout handling, storms or dam changes are active, trail access is restricted, or the exact PFBC special fishing rule reach has not been confirmed.
Start with the Reading gauge, PFBC rules, USACE Blue Marsh information, Berks County towpath guidance, weather, and one legal access choice. Fish seams, drop-offs, soft edges, and shaded banks before moving far.
If Tulpehocken Creek is high, warm, crowded, or access-limited, compare Yellow Breeches Creek for another limestone-influenced trout plan, Spring Creek for technical wild trout, or Little Lehigh Creek for spring-creek style fishing.
Tulpehocken Creek access and rules.
Use these places as starting points. Open the access link below and check posted signs before you park or enter.
Before you go
Check PFBC DHALO and statewide trout rules for the Tulpehocken Creek section below Blue Marsh before fishing.
Where to access the river
Blue Marsh tailwater area
Core planning area below the dam. Check USACE status and PFBC rules.
DHALO reach
The primary trout report focus. Verify the current PFBC section language.
Union Canal Towpath Trail context
Useful orientation for walking access and Reading-area planning.
- Do not fish closed stilling-basin or posted areas.
- Trail hours, parking, and construction can affect the best plan.
- Flow releases can turn comfortable wading into unsafe wading quickly.
Sources and report details
Official agencies and primary river operators come first. Secondary tools are labeled so you know what carries the most weight.
Rules and closures
Check what is allowed, where the rule applies, and whether the river is open.
Flow and weather
Check the latest river reading and forecast before you leave.
Access and land
Check public entry points, land rules, and seasonal access changes.
See all 6 checked sources
Rules and closures
Check what is allowed, where the rule applies, and whether the river is open.
What this source covers
Open the current rules and check the river section, season, and special limits.
What this source covers
Open the current rules and check the river section, season, and special limits.
Flow and weather
Check the latest river reading and forecast before you leave.
What this source covers
Open this page and check the latest safety advice before your trip.
What this source covers
Open this river reading to check the latest level, flow, and update time.
Access and land
Check public entry points, land rules, and seasonal access changes.
What this source covers
Open the land or access page, then check signs before you park or enter.
What this source covers
Open the land or access page, then check signs before you park or enter.
How this report was checked
How this report was checked
Reviewed byBlueStreamFly River Review Team
Trip guidance checked
What was checked: This Tulpehocken Creek report is maintained from Pennsylvania Fish and Boat Commission regulations and trout classification sources, U.S. Army Corps of Engineers Blue Marsh Lake information, Berks County Union Canal Towpath Trail access guidance, USGS Reading flow data, weather, media-credit, and southeast Pennsylvania tailwater planning sources.
Live measurements and forecasts keep their provider timestamps. Rules, access, and trip guidance use the source-review date shown here. BlueStreamFly planning advice is editorial interpretation, not an agency notice.
First-hand experience: BlueStreamFly does not claim a first-hand visit or local field test for this report unless a real contributor is explicitly named and linked.
Quick questions
What should I check first before fishing Tulpehocken Creek?
Check PFBC DHALO rules, USGS 01471000, Blue Marsh status, weather, and water temperature.
Where should a first-time visitor start on Tulpehocken Creek?
Start with the Blue Marsh tailwater and DHALO area, then verify parking and trail access before fishing.
Can I wade Tulpehocken Creek?
Yes at safe releases, but tailwater changes and slick footing make a wading staff useful.
What flies should I bring for Tulpehocken Creek?
Bring the seasonal fly box, then adjust size, weight, and color to water level, clarity, temperature, and fishing pressure.