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When should you fix a stream????

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When should you fix a stream????. Let’s look closer at this one. Susquehanna River with Interstate 88 at top of slope. McKinstry Creek existing planform, three bends and 2 crossings over 540 ft of length. Only one good habitat pool. Note 300 ft long straight stretch.

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PowerPoint Slideshow about 'When should you fix a stream????' - draco


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when should you fix a stream
When should you fix a stream????

Let’s look closer at this one

slide3
McKinstry Creek existing planform, three bends and 2 crossings over 540 ft of length. Only one good habitat pool. Note 300 ft long straight stretch.
slide4
McKinstry Creek near Delevan, NY, 5-18-2006, flow left to right

New channel planform (blue line)

slide5
Looking DS, Elton Creek, Freedom, NY. Floodplain on both sides has been filled, stream straightened. At 30 ft wide no habitat pools, when stream is 20 ft wide 2 ft deep pools with 40-50 trout per pool!!

What should we do???

(Elton Creek, Freedom, NY)

Looking Downstream

Photo by Maureen Mayer

same stream west virginia
Same Stream (West Virginia)
  • Straightened
  • Incised
  • Over - widened
  • Very little pool-riffle-pool
  • Very little wood in stream or high quality aquatic habitat (cover, depth, etc)
  • Single row of ageing veg as riparian corridor
abandon channel start fresh
Abandon channel, start fresh!!

Transform old channel into connected wetland cells

  • Use dirt from new channel to create wetland cells in old channel (maximize diversity)
  • Use some old veg for LWD in new channel
  • Plant all riparian areas (shade, wildlife, pollinators)
  • Maximize all stream functions

New stream channel with all bells & whistles

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