Pennsylvania Fly Fishing 5 min read

DIY Guide to Fly Fishing the Lehigh River

Ken Sperry

Posted by Ken Sperry

August 6, 2015

Lehigh river in Pennsylvania

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The Lehigh River was featured in Eastern Fly Fishing (Volume 7, Number 6, November/December 2011) in an article by Beau Beasley aptly named, “Lehigh River, PA – Understanding an Underated Fishery”. And underated it is.

The Lehigh River flows for over 100 miles through Pennsylvania and serves as the largest tributary to the Delaware River. 

Trout fishing on the Lehigh River consist of 20 miles of small, easy-to-wade water flowing through a series of glacial bogs and marshes surrounded by scenic state forest near Goulsboro, Pennsylvania, and a 35 mile stretch below the Francis E. Walter Dam from Whitehaven to Walnutport.

Fly fishing for wild brown trout on the Lehigh River in Pennsylvania

Lehigh River Fishing Map

map of fishing spots on the Lehigh River in Pennsylvania

Get Directions to the Fishing Access Points shown above with the DIY Fly Fishing Map

Lehigh River Tailwater Below Francis E. Walter Dam

The dam, built in 1961 by the U.S. Army Corps of Engineers, is managed primarily for flood control and whitewater rafting and as a result the lower Lehigh River see significant fluctuations in temperature and depth. Both take a toll on the wild trout and aquatic insect population.

Despite this, the river contains a robust population of wild browns and rainbows, that is augmented by a number of private organizations that stock the river, most notably the Lehigh River Stocking Association. In addition to trout, the Lehigh River also contains a healthy population of smallmouth bass that fight like hell and are a blast to catch.

Lehigh River Access Points

The Lehigh River is a formidable river filled with slick bowling ball sized boulders and is treacherous to wade in some locations and darn near impossible to wade in others. Caution is advised. With that in mind, there are ample locations along the river from Whitehaven to Walnutport that provide access to the wade fisherman.

Wade access points include the Francis E. Walter Dam, I-80 Bridge in White Haven, Tannery, Hayes Creek, Leslie Run, Rockport, Glen Onoko Boat Ramp, Jim Thorpe Boat Ramp, Packerton Yards, Dunbars, Lehighton Sewer Plant, Pohopco Creek, Bowmanstown Boat Ramp, Palmertown Horseshoe, Lehigh Gap Boat Ramp, Szokes and the Walnutport Canal Boat Ramp.

The Lehigh Coldwater Fishery Alliance put together a nice map detailing the location of wade access points and fishing tips for each location that is incorporated into the map above.

Lehigh River Boat Ramps

The Lehigh River is well known for whitewater rafting through the Lehigh Gorge but there are also a number of excellent float trips that are well suited to fishing, in particular from Jim Thorpe to Walnutport.

The Wildlands Conservancy has put together an excellent guide to floating the Lehigh River called the Lehigh River Water Trail that details boat ramp locations, river reach maps and detailed descriptions of major rapids (these are particularly handy when us fisherman are trying to avoid them).

This information is included in the map above. Click on the map icons for more information and river mileage to the next boat ramp for planning float trips.

Lehigh River Stream Guages

There are three USGS stream gauges on the Lehigh River from the Francis E. Walter Dam downstream to Walnutport, the river reach of most interest to trout fisherman. As you can see in the graphs below, the river picks up volume from a number of tributaries along the way. USGS stream gauges are marked with a dark green icon on the map above.

The Lehigh fishes best at 200 to 300 cfs up near the dam and up to 750 cfs as you head downstream toward Lehighton and Walnutport.

Lehigh R bl Francis E Walter Res nr White Haven PA

  • Temperature: 35.24 ° F
  • Streamflow: 665 ft³/s
  • Gage height: 4.14 ft
Temperature GraphStreamflow GraphGage height Graph

Lehigh River at Lehighton, PA

  • Temperature: 35.24 ° F
  • Streamflow: 1450 ft³/s
  • Gage height: 3.91 ft
Temperature GraphStreamflow GraphGage height Graph

Lehigh River at Walnutport, PA

  • Temperature: 35.24 ° F
  • Streamflow: 2090 ft³/s
  • Gage height: 3.27 ft
Temperature GraphStreamflow GraphGage height Graph

Francis E. Walter Dam Water Release Schedule

As noted above, flows on the Lehigh River below White Haven are controlled by the Francis E. Walter Dam. White water releases typically put the fishing off and these days are best avoided. If you do fish, go early before the wave of water and boaters arrives. If you study the USGS stream gauge data (see above) during a white water release you will be able to predicted when water levels will start to increase in the location you wish to fish.

Below are excerpts of the U.S. Army Corps of Engineers Francis E. Water Reservoir Recreation Operations Plan. You can read the full plan here.

The U.S. Army Corps Engineers’ Philadelphia District posted the 2023 Recreation Plan for the Francis E. Walter Dam. The plan specifies dates and actions associated with whitewater and fishing releases from the dam from late March to early October of 2023. USACE coordinates the plan with the Pennsylvania Fish & Boat Commission and the Pennsylvania Department of Conservation and Natural Resources.

In 2023, the plan includes 24 whitewater releases and 22 fishing enhancement releases (unchanged from prior years). One significant change for the coming year – fishing releases previously schedule for March have been moved to the last three weekends in September based on feedback.

Dates for fishing releases and whitewater releases are noted below. Several dates are dependent on adequate water storage in the reservoir. It’s important to note that the need for flood control operations could result in the cancellation of any scheduled dates.

Whitewater Release Schedule

The whitewater release schedule includes 24 dates (4 of which are dependent on sufficient water storage and not including final October weekend).

Planned whitewater release dates are:

  • May: 13, 20, 27, 28
  • June: 10, 11, 24, 25
  • July: 8, 9, 22, 23, 29, 30
  • August: 5, 6, 12, 13, 15, 19, 20, 26*, 27*
  • September: 2*, 3*
  • October: as provided by end of year releases around the weekend of 7-8 October**

* Dependent on additional water accumulation in reservoir

** The October weekend release is intended to provide a means of releasing any excess water that may have accumulated during the recreation season.

This is the last added increment for the recreation plan. Fisheries releases through the season will be assured before the final weekend (9-10 October) release will be considered. This release is intended to release all excess water.

Note: You want to avoid fishing on Whitewater Release Days!

Fisheries Release Schedule

Planned dates (22) for fishing releases (target 400 cfs)* are:

  • March: 25, 26
  • April: 1, 2, 8, 9, 15, 16, 22, 23, 29, 30
  • May: 6, 7, 14, 21
  • September: 9*, 10*, 16*, 17*, 23*, 24*
  • October: as provided by end of year release around the weekend of 9-10 October

* Release will be set to match inflow with a target release up to 400 cfs. Inflow will not be augmented by use of storage to satisfy the 400 cfs target.

It is also important to note that once the water level in the reservoir reaches the target pool height for the recreation season, water is released to match outflow with inflow. So if there is a large rainfall event double check the stream gauges before you head out even if there is not a whitewater release planned.

Lehigh River Wade Chart

The Lehigh Coldwater Fishery Alliance put together a handy flow and wade chart for the Lehigh River. Use the USGS flow gauge data and wade chart to determine when it is safe to wade or float the river. Heed the warnings in the chart. The Mighty Lehigh is extremely dangerous at high flows!

Lehigh River Wading Chart

Lehigh River Hatches

The Lehigh supports an impressive variety of mayflies, caddisflies and stoneflies.

Little Black Stoneflies begin in early-April and can hatch in tremendous numbers. The end of April will see Little Black Caddis, Grannoms and Hendricksons, along with a number of Caddis species.

May and June are “Prime Time” on the Lehigh and the March Brown, Grey Fox, Sulphur and Caddis hatches can be phenomenol. Hatches of Blue Wing Olives, Light Cahills and Isonychias begin in earnst in June.

As summer begins, Caddis still hatch in good numbers along with small Blue Wing Olives, Isonychias and summer Stenonemas (Sulphurs). Mornings can produce good hatches of Tricos in the Lehighton to Bowmanstown stretch.

Come fall Isonychias and evening hatches of Sulphurs can be outstanding. Caddis and Blue Wing Olives will be the flies the fish will key on as late fall approaches. Fishing with streamers and Wooly Buggers can be quite productive during this time of year as well. In fact, Wooly Buggers and streamers fished with a sinking line will produce fish all year long.

The LRSA has published one of the better hatch charts for the Lehigh River (reproduced below).

Lehigh River Hatch Chart

Need flies? 

The Fly Crate offers a great selection of dry flies, nymphs and streamers that will catch fish just about anywhere.  Premium, high quality, hand-tied flies at a great price!

fly fishing flies from The Fly Crate

The Fly Crate Commits 2% of Sales to Aid Disabled Veterans

If you haven’t fished the Lehigh River give it a chance the next time you are in the area – you just might be surprised at how well it fishes.

Visit our DIY Guide to Fly Fishing in Pennsylvania for information on other fly fishing destinations in Pennsylvania.