Brodhead is a great example. Hurricanes have clobbered it repeatedly since 1955. Had relatively good period of 50 years, then early 2000's was a bad time when the stream actually changed course by about 200 yds near the ballfields in Stroudsburg. Can see the remains of the old dam over by the hillside above the park. The ballfields were partly washed away and the retaining wall was built to protect the park and the ballfields filled in. It always came back, but some losses too. One local guide told me back around 2000 after the Hurricane damage to check out rocks before fishing. If the rocks are scoured and have no bugs - fish elsewhere. Look for where bugs are. Fish have to eat and will avoid overly scoured areas...
I literally saw the before & after of this event as I was fishing the Brodhead regularly in the early 2000's with a buddy who lived up the road in Stroud Township. There was a massive plunge pool that we fished regularly that was so deep we didn't dare to try and wade and to the right (facing upstream) was the bank and some big trees.
Then one month we had some crazy heavy rains (not a hurricane or tropical storm or hurricane that I remember) and I got call from him telling me I HAD to see what happened to that spot. I drove up to Stroudsburg and half the road that led to the stretch was gone...
The plunge pool was GONE too and the stream was now running about 300 feet to the right and the huge trees that were on the bank were right in the middle of the stream.
There appears to still be water in that hole so there might be a braid still feeding it but the water gushing over the huge boulder is gone. You can see the former plunge pool here:
I also witnessed the mouth of the Brodhead moving dramatically after heavy storms but that was more about heavy flows from the Delaware River.
FWIW - I also saw corn stalks stuck in trees 10 - 15 feet above Route 209 north of Bushkill after some of those storms.
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HOWEVER, for several years I lived above the canyon (between the I-80 overpasses) and I used to walk down to the Brodhead often to fish. This section was not channelized in 1956 and is LOADED with huge boulders and I barely noticed any changes to the creek after similar rain events other than debris that washed downstream.
Ironically, many years ago Brodhead TU and good stewards of the stream like Don Baylor got boulders placed BACK into part of the channelized section above Main Street but it really was too little too late.
However, if you read about the effects in the region from the double wallop of Connie & Diane and follow that up with accounts of all of the storms after, INCLUDING Agnes, it's hard to argue the channelization wasn't worth it...